WIP

.claude/CLAUDE.md

@@ -1,66 +1,72 @@
 # Invoice Master POC v2
 
-Swedish Invoice Field Extraction System - YOLOv11 + PaddleOCR 从瑞典 PDF 发票中提取结构化数据。
+Swedish Invoice Field Extraction System - YOLO + PaddleOCR extracts structured data from Swedish PDF invoices.
+
+## Architecture
+
+```
+PDF → PyMuPDF (DPI=150) → YOLO Detection → PaddleOCR → Field Extraction → Normalization → Output
+```
+
+### Project Structure
+
+```
+packages/
+├── backend/    # FastAPI web server + inference pipeline
+│   └── pipeline/   # YOLO detector → OCR → field extractor → value selector → normalizers
+├── shared/     # Common utilities (bbox, OCR, field mappings)
+└── training/   # YOLO training data generation (annotation, dataset)
+tests/          # Mirrors packages/ structure
+```
+
+### Pipeline Flow (process_pdf)
+
+1. YOLO detects field regions on rendered PDF page
+2. PaddleOCR extracts text from detected bboxes
+3. Field extractor maps detections to invoice fields via CLASS_TO_FIELD
+4. Value selector picks best candidate per field (confidence + validation)
+5. Normalizers clean values (dates, amounts, invoice numbers)
+6. Fallback regex extraction if key fields missing
 
 ## Tech Stack
 
 | Component | Technology |
 |-----------|------------|
-| Object Detection | YOLOv11 (Ultralytics) |
+| Object Detection | YOLO (Ultralytics >= 8.4.0) |
-| OCR Engine | PaddleOCR v5 (PP-OCRv5) |
+| OCR | PaddleOCR v5 (PP-OCRv5) |
-| PDF Processing | PyMuPDF (fitz) |
+| PDF | PyMuPDF (fitz), DPI=150 |
 | Database | PostgreSQL + psycopg2 |
-| Web Framework | FastAPI + Uvicorn |
+| Web | FastAPI + Uvicorn |
-| Deep Learning | PyTorch + CUDA 12.x |
+| ML | PyTorch + CUDA 12.x |
 
 ## WSL Environment (REQUIRED)
 
-**Prefix ALL commands with:**
+ALL Python commands MUST use this prefix:
 
 ```bash
-wsl bash -c "source ~/miniconda3/etc/profile.d/conda.sh && conda activate invoice-py311 && <command>"
+wsl bash -c "source ~/miniconda3/etc/profile.d/conda.sh && conda activate invoice-sm120 && <command>"
 ```
 
-**NEVER run Python commands directly in Windows PowerShell/CMD.**
+NEVER run Python directly in Windows PowerShell/CMD.
 
-## Project-Specific Rules
+## Project Rules
 
-- Python 3.11+ with type hints
+- Python 3.10, type hints on all function signatures
-- No print() in production - use logging
+- No `print()` in production code - use `logging` module
-- Run tests: `pytest --cov=src`
+- Validation with `pydantic` or `dataclasses`
+- Error handling with `try/except` (not try/catch)
+- Run tests: `pytest --cov=packages tests/`
 
-## Critical Rules
+## Key Files
 
-### Code Organization
+| File | Purpose |
-
+|------|---------|
-- Many small files over few large files
+| `packages/backend/backend/pipeline/pipeline.py` | Main inference pipeline |
-- High cohesion, low coupling
+| `packages/backend/backend/pipeline/field_extractor.py` | YOLO → field mapping |
-- 200-400 lines typical, 800 max per file
+| `packages/backend/backend/pipeline/value_selector.py` | Best candidate selection |
-- Organize by feature/domain, not by type
+| `packages/shared/shared/fields/mappings.py` | CLASS_TO_FIELD mapping |
-
+| `packages/shared/shared/ocr/paddle_ocr.py` | OCRToken definition |
-### Code Style
+| `packages/shared/shared/bbox/` | Bbox expansion strategies |
-
-- No emojis in code, comments, or documentation
-- Immutability always - never mutate objects or arrays
-- No console.log in production code
-- Proper error handling with try/catch
-- Input validation with Zod or similar
-
-### Testing
-
-- TDD: Write tests first
-- 80% minimum coverage
-- Unit tests for utilities
-- Integration tests for APIs
-- E2E tests for critical flows
-
-### Security
-
-- No hardcoded secrets
-- Environment variables for sensitive data
-- Validate all user inputs
-- Parameterized queries only
-- CSRF protection enabled
 
 ## Environment Variables
 
@@ -78,16 +84,41 @@ CONFIDENCE_THRESHOLD=0.5
 SERVER_HOST=0.0.0.0
 SERVER_PORT=8000
 ```
-## Available Commands
 
-- `/tdd` - Test-driven development workflow
+## Auto-trigger Rules (ALWAYS FOLLOW - even after context compaction)
-- `/plan` - Create implementation plan
-- `/code-review` - Review code quality
-- `/build-fix` - Fix build errors
 
-## Git Workflow
+These rules MUST be followed regardless of conversation history:
 
-- Conventional commits: `feat:`, `fix:`, `refactor:`, `docs:`, `test:`
+- New feature or bug fix → MUST use **tdd-guide** agent (write tests first)
-- Never commit to main directly
+- When writing code → MUST follow coding standards skill for the target language:
-- PRs require review
+  - Python → `python-patterns` (PEP 8, type hints, Pythonic idioms)
-- All tests must pass before merge
+  - C# → `dotnet-skills:coding-standards` (records, pattern matching, modern C#)
+  - TS/JS → `coding-standards` (universal best practices)
+- After writing/modifying code → MUST use **code-reviewer** agent
+- Before git commit → MUST use **security-reviewer** agent
+- When build/test fails → MUST use **build-error-resolver** agent
+- After context compaction → read MEMORY.md to restore session state
+
+## Plan Completion Protocol
+
+After completing any plan or major task:
+
+1. **Test** - Run `pytest` to confirm all tests pass
+2. **Security review** - Use **security-reviewer** agent on changed files
+3. **Fix loop** - If security review reports CRITICAL or HIGH issues:
+   - Fix the issues
+   - Re-run tests (back to step 1)
+   - Re-run security review (back to step 2)
+   - Repeat until no CRITICAL/HIGH issues remain
+4. **Commit** - Auto-commit with conventional commit message (`feat:`, `fix:`, `refactor:`, etc.). Stage only the files changed in this task, not unrelated files
+5. **Save** - Write a summary to MEMORY.md including: what was done, files changed, decisions made, remaining work
+6. **Suggest clear** - Tell the user: "Plan complete. Recommend `/clear` to free context for the next task."
+7. **Do NOT start a new task** in the same context - wait for user to /clear first
+
+This keeps each plan in a fresh context window for maximum quality.
+
+## Known Issues
+
+- Pre-existing test failures: `test_s3.py`, `test_azure.py` (missing boto3/azure) - safe to ignore
+- Always re-run dedup/validation after fallback adds new fields
+- PDF DPI must be 150 (not 300) for correct bbox alignment

.claude/commands/build-fix.md

@@ -1,22 +0,0 @@
-# Build and Fix
-
-Incrementally fix Python errors and test failures.
-
-## Workflow
-
-1. Run check: `mypy src/ --ignore-missing-imports` or `pytest -x --tb=short`
-2. Parse errors, group by file, sort by severity (ImportError > TypeError > other)
-3. For each error:
-   - Show context (5 lines)
-   - Explain and propose fix
-   - Apply fix
-   - Re-run test for that file
-   - Verify resolved
-4. Stop if: fix introduces new errors, same error after 3 attempts, or user pauses
-5. Show summary: fixed / remaining / new errors
-
-## Rules
-
-- Fix ONE error at a time
-- Re-run tests after each fix
-- Never batch multiple unrelated fixes

.claude/commands/checkpoint.md

@@ -1,74 +0,0 @@
-# Checkpoint Command
-
-Create or verify a checkpoint in your workflow.
-
-## Usage
-
-`/checkpoint [create|verify|list] [name]`
-
-## Create Checkpoint
-
-When creating a checkpoint:
-
-1. Run `/verify quick` to ensure current state is clean
-2. Create a git stash or commit with checkpoint name
-3. Log checkpoint to `.claude/checkpoints.log`:
-
-```bash
-echo "$(date +%Y-%m-%d-%H:%M) | $CHECKPOINT_NAME | $(git rev-parse --short HEAD)" >> .claude/checkpoints.log
-```
-
-4. Report checkpoint created
-
-## Verify Checkpoint
-
-When verifying against a checkpoint:
-
-1. Read checkpoint from log
-2. Compare current state to checkpoint:
-   - Files added since checkpoint
-   - Files modified since checkpoint
-   - Test pass rate now vs then
-   - Coverage now vs then
-
-3. Report:
-```
-CHECKPOINT COMPARISON: $NAME
-============================
-Files changed: X
-Tests: +Y passed / -Z failed
-Coverage: +X% / -Y%
-Build: [PASS/FAIL]
-```
-
-## List Checkpoints
-
-Show all checkpoints with:
-- Name
-- Timestamp
-- Git SHA
-- Status (current, behind, ahead)
-
-## Workflow
-
-Typical checkpoint flow:
-
-```
-[Start] --> /checkpoint create "feature-start"
-   |
-[Implement] --> /checkpoint create "core-done"
-   |
-[Test] --> /checkpoint verify "core-done"
-   |
-[Refactor] --> /checkpoint create "refactor-done"
-   |
-[PR] --> /checkpoint verify "feature-start"
-```
-
-## Arguments
-
-$ARGUMENTS:
-- `create <name>` - Create named checkpoint
-- `verify <name>` - Verify against named checkpoint
-- `list` - Show all checkpoints
-- `clear` - Remove old checkpoints (keeps last 5)

.claude/commands/code-review.md

@@ -1,46 +0,0 @@
-# Code Review
-
-Security and quality review of uncommitted changes.
-
-## Workflow
-
-1. Get changed files: `git diff --name-only HEAD` and `git diff --staged --name-only`
-2. Review each file for issues (see checklist below)
-3. Run automated checks: `mypy src/`, `ruff check src/`, `pytest -x`
-4. Generate report with severity, location, description, suggested fix
-5. Block commit if CRITICAL or HIGH issues found
-
-## Checklist
-
-### CRITICAL (Block)
-
-- Hardcoded credentials, API keys, tokens, passwords
-- SQL injection (must use parameterized queries)
-- Path traversal risks
-- Missing input validation on API endpoints
-- Missing authentication/authorization
-
-### HIGH (Block)
-
-- Functions > 50 lines, files > 800 lines
-- Nesting depth > 4 levels
-- Missing error handling or bare `except:`
-- `print()` in production code (use logging)
-- Mutable default arguments
-
-### MEDIUM (Warn)
-
-- Missing type hints on public functions
-- Missing tests for new code
-- Duplicate code, magic numbers
-- Unused imports/variables
-- TODO/FIXME comments
-
-## Report Format
-
-```
-[SEVERITY] file:line - Issue description
-  Suggested fix: ...
-```
-
-## Never Approve Code With Security Vulnerabilities!

.claude/commands/e2e.md

@@ -1,40 +0,0 @@
-# E2E Testing
-
-End-to-end testing for the Invoice Field Extraction API.
-
-## When to Use
-
-- Testing complete inference pipeline (PDF -> Fields)
-- Verifying API endpoints work end-to-end
-- Validating YOLO + OCR + field extraction integration
-- Pre-deployment verification
-
-## Workflow
-
-1. Ensure server is running: `python run_server.py`
-2. Run health check: `curl http://localhost:8000/api/v1/health`
-3. Run E2E tests: `pytest tests/e2e/ -v`
-4. Verify results and capture any failures
-
-## Critical Scenarios (Must Pass)
-
-1. Health check returns `{"status": "healthy", "model_loaded": true}`
-2. PDF upload returns valid response with fields
-3. Fields extracted with confidence scores
-4. Visualization image generated
-5. Cross-validation included for invoices with payment_line
-
-## Checklist
-
-- [ ] Server running on http://localhost:8000
-- [ ] Health check passes
-- [ ] PDF inference returns valid JSON
-- [ ] At least one field extracted
-- [ ] Visualization URL returns image
-- [ ] Response time < 10 seconds
-- [ ] No server errors in logs
-
-## Test Location
-
-E2E tests: `tests/e2e/`
-Sample fixtures: `tests/fixtures/`

.claude/commands/eval.md

@@ -1,174 +0,0 @@
-# Eval Command
-
-Evaluate model performance and field extraction accuracy.
-
-## Usage
-
-`/eval [model|accuracy|compare|report]`
-
-## Model Evaluation
-
-`/eval model`
-
-Evaluate YOLO model performance on test dataset:
-
-```bash
-# Run model evaluation
-python -m src.cli.train --model runs/train/invoice_fields/weights/best.pt --eval-only
-
-# Or use ultralytics directly
-yolo val model=runs/train/invoice_fields/weights/best.pt data=data.yaml
-```
-
-Output:
-```
-Model Evaluation: invoice_fields/best.pt
-========================================
-mAP@0.5:     93.5%
-mAP@0.5-0.95: 83.0%
-
-Per-class AP:
-- invoice_number:    95.2%
-- invoice_date:      94.8%
-- invoice_due_date:  93.1%
-- ocr_number:        91.5%
-- bankgiro:          92.3%
-- plusgiro:          90.8%
-- amount:            88.7%
-- supplier_org_num:  85.2%
-- payment_line:      82.4%
-- customer_number:   81.1%
-```
-
-## Accuracy Evaluation
-
-`/eval accuracy`
-
-Evaluate field extraction accuracy against ground truth:
-
-```bash
-# Run accuracy evaluation on labeled data
-python -m src.cli.infer --model runs/train/invoice_fields/weights/best.pt \
-    --input ~/invoice-data/test/*.pdf \
-    --ground-truth ~/invoice-data/test/labels.csv \
-    --output eval_results.json
-```
-
-Output:
-```
-Field Extraction Accuracy
-=========================
-Documents tested: 500
-
-Per-field accuracy:
-- InvoiceNumber:   98.9% (494/500)
-- InvoiceDate:     95.5% (478/500)
-- InvoiceDueDate:  95.9% (480/500)
-- OCR:             99.1% (496/500)
-- Bankgiro:        99.0% (495/500)
-- Plusgiro:        99.4% (497/500)
-- Amount:          91.3% (457/500)
-- supplier_org:    78.2% (391/500)
-
-Overall: 94.8%
-```
-
-## Compare Models
-
-`/eval compare`
-
-Compare two model versions:
-
-```bash
-# Compare old vs new model
-python -m src.cli.eval compare \
-    --model-a runs/train/invoice_v1/weights/best.pt \
-    --model-b runs/train/invoice_v2/weights/best.pt \
-    --test-data ~/invoice-data/test/
-```
-
-Output:
-```
-Model Comparison
-================
-                Model A     Model B     Delta
-mAP@0.5:        91.2%       93.5%       +2.3%
-Accuracy:       92.1%       94.8%       +2.7%
-Speed (ms):     1850        1520        -330
-
-Per-field improvements:
-- amount:       +4.2%
-- payment_line: +3.8%
-- customer_num: +2.1%
-
-Recommendation: Deploy Model B
-```
-
-## Generate Report
-
-`/eval report`
-
-Generate comprehensive evaluation report:
-
-```bash
-python -m src.cli.eval report --output eval_report.md
-```
-
-Output:
-```markdown
-# Evaluation Report
-Generated: 2026-01-25
-
-## Model Performance
-- Model: runs/train/invoice_fields/weights/best.pt
-- mAP@0.5: 93.5%
-- Training samples: 9,738
-
-## Field Extraction Accuracy
-| Field | Accuracy | Errors |
-|-------|----------|--------|
-| InvoiceNumber | 98.9% | 6 |
-| Amount | 91.3% | 43 |
-...
-
-## Error Analysis
-### Common Errors
-1. Amount: OCR misreads comma as period
-2. supplier_org: Missing from some invoices
-3. payment_line: Partially obscured by stamps
-
-## Recommendations
-1. Add more training data for low-accuracy fields
-2. Implement OCR error correction for amounts
-3. Consider confidence threshold tuning
-```
-
-## Quick Commands
-
-```bash
-# Evaluate model metrics
-yolo val model=runs/train/invoice_fields/weights/best.pt
-
-# Test inference on sample
-python -m src.cli.infer --input sample.pdf --output result.json --gpu
-
-# Check test coverage
-pytest --cov=src --cov-report=html
-```
-
-## Evaluation Metrics
-
-| Metric | Target | Current |
-|--------|--------|---------|
-| mAP@0.5 | >90% | 93.5% |
-| Overall Accuracy | >90% | 94.8% |
-| Test Coverage | >60% | 37% |
-| Tests Passing | 100% | 100% |
-
-## When to Evaluate
-
-- After training a new model
-- Before deploying to production
-- After adding new training data
-- When accuracy complaints arise
-- Weekly performance monitoring

.claude/commands/learn.md

@@ -1,70 +0,0 @@
-# /learn - Extract Reusable Patterns
-
-Analyze the current session and extract any patterns worth saving as skills.
-
-## Trigger
-
-Run `/learn` at any point during a session when you've solved a non-trivial problem.
-
-## What to Extract
-
-Look for:
-
-1. **Error Resolution Patterns**
-   - What error occurred?
-   - What was the root cause?
-   - What fixed it?
-   - Is this reusable for similar errors?
-
-2. **Debugging Techniques**
-   - Non-obvious debugging steps
-   - Tool combinations that worked
-   - Diagnostic patterns
-
-3. **Workarounds**
-   - Library quirks
-   - API limitations
-   - Version-specific fixes
-
-4. **Project-Specific Patterns**
-   - Codebase conventions discovered
-   - Architecture decisions made
-   - Integration patterns
-
-## Output Format
-
-Create a skill file at `~/.claude/skills/learned/[pattern-name].md`:
-
-```markdown
-# [Descriptive Pattern Name]
-
-**Extracted:** [Date]
-**Context:** [Brief description of when this applies]
-
-## Problem
-[What problem this solves - be specific]
-
-## Solution
-[The pattern/technique/workaround]
-
-## Example
-[Code example if applicable]
-
-## When to Use
-[Trigger conditions - what should activate this skill]
-```
-
-## Process
-
-1. Review the session for extractable patterns
-2. Identify the most valuable/reusable insight
-3. Draft the skill file
-4. Ask user to confirm before saving
-5. Save to `~/.claude/skills/learned/`
-
-## Notes
-
-- Don't extract trivial fixes (typos, simple syntax errors)
-- Don't extract one-time issues (specific API outages, etc.)
-- Focus on patterns that will save time in future sessions
-- Keep skills focused - one pattern per skill

.claude/commands/orchestrate.md

@@ -1,172 +0,0 @@
-# Orchestrate Command
-
-Sequential agent workflow for complex tasks.
-
-## Usage
-
-`/orchestrate [workflow-type] [task-description]`
-
-## Workflow Types
-
-### feature
-Full feature implementation workflow:
-```
-planner -> tdd-guide -> code-reviewer -> security-reviewer
-```
-
-### bugfix
-Bug investigation and fix workflow:
-```
-explorer -> tdd-guide -> code-reviewer
-```
-
-### refactor
-Safe refactoring workflow:
-```
-architect -> code-reviewer -> tdd-guide
-```
-
-### security
-Security-focused review:
-```
-security-reviewer -> code-reviewer -> architect
-```
-
-## Execution Pattern
-
-For each agent in the workflow:
-
-1. **Invoke agent** with context from previous agent
-2. **Collect output** as structured handoff document
-3. **Pass to next agent** in chain
-4. **Aggregate results** into final report
-
-## Handoff Document Format
-
-Between agents, create handoff document:
-
-```markdown
-## HANDOFF: [previous-agent] -> [next-agent]
-
-### Context
-[Summary of what was done]
-
-### Findings
-[Key discoveries or decisions]
-
-### Files Modified
-[List of files touched]
-
-### Open Questions
-[Unresolved items for next agent]
-
-### Recommendations
-[Suggested next steps]
-```
-
-## Example: Feature Workflow
-
-```
-/orchestrate feature "Add user authentication"
-```
-
-Executes:
-
-1. **Planner Agent**
-   - Analyzes requirements
-   - Creates implementation plan
-   - Identifies dependencies
-   - Output: `HANDOFF: planner -> tdd-guide`
-
-2. **TDD Guide Agent**
-   - Reads planner handoff
-   - Writes tests first
-   - Implements to pass tests
-   - Output: `HANDOFF: tdd-guide -> code-reviewer`
-
-3. **Code Reviewer Agent**
-   - Reviews implementation
-   - Checks for issues
-   - Suggests improvements
-   - Output: `HANDOFF: code-reviewer -> security-reviewer`
-
-4. **Security Reviewer Agent**
-   - Security audit
-   - Vulnerability check
-   - Final approval
-   - Output: Final Report
-
-## Final Report Format
-
-```
-ORCHESTRATION REPORT
-====================
-Workflow: feature
-Task: Add user authentication
-Agents: planner -> tdd-guide -> code-reviewer -> security-reviewer
-
-SUMMARY
--------
-[One paragraph summary]
-
-AGENT OUTPUTS
--------------
-Planner: [summary]
-TDD Guide: [summary]
-Code Reviewer: [summary]
-Security Reviewer: [summary]
-
-FILES CHANGED
--------------
-[List all files modified]
-
-TEST RESULTS
-------------
-[Test pass/fail summary]
-
-SECURITY STATUS
----------------
-[Security findings]
-
-RECOMMENDATION
---------------
-[SHIP / NEEDS WORK / BLOCKED]
-```
-
-## Parallel Execution
-
-For independent checks, run agents in parallel:
-
-```markdown
-### Parallel Phase
-Run simultaneously:
-- code-reviewer (quality)
-- security-reviewer (security)
-- architect (design)
-
-### Merge Results
-Combine outputs into single report
-```
-
-## Arguments
-
-$ARGUMENTS:
-- `feature <description>` - Full feature workflow
-- `bugfix <description>` - Bug fix workflow
-- `refactor <description>` - Refactoring workflow
-- `security <description>` - Security review workflow
-- `custom <agents> <description>` - Custom agent sequence
-
-## Custom Workflow Example
-
-```
-/orchestrate custom "architect,tdd-guide,code-reviewer" "Redesign caching layer"
-```
-
-## Tips
-
-1. **Start with planner** for complex features
-2. **Always include code-reviewer** before merge
-3. **Use security-reviewer** for auth/payment/PII
-4. **Keep handoffs concise** - focus on what next agent needs
-5. **Run verification** between agents if needed

.claude/commands/plan.md

@@ -1,113 +0,0 @@
----
-description: Restate requirements, assess risks, and create step-by-step implementation plan. WAIT for user CONFIRM before touching any code.
----
-
-# Plan Command
-
-This command invokes the **planner** agent to create a comprehensive implementation plan before writing any code.
-
-## What This Command Does
-
-1. **Restate Requirements** - Clarify what needs to be built
-2. **Identify Risks** - Surface potential issues and blockers
-3. **Create Step Plan** - Break down implementation into phases
-4. **Wait for Confirmation** - MUST receive user approval before proceeding
-
-## When to Use
-
-Use `/plan` when:
-- Starting a new feature
-- Making significant architectural changes
-- Working on complex refactoring
-- Multiple files/components will be affected
-- Requirements are unclear or ambiguous
-
-## How It Works
-
-The planner agent will:
-
-1. **Analyze the request** and restate requirements in clear terms
-2. **Break down into phases** with specific, actionable steps
-3. **Identify dependencies** between components
-4. **Assess risks** and potential blockers
-5. **Estimate complexity** (High/Medium/Low)
-6. **Present the plan** and WAIT for your explicit confirmation
-
-## Example Usage
-
-```
-User: /plan I need to add real-time notifications when markets resolve
-
-Agent (planner):
-# Implementation Plan: Real-Time Market Resolution Notifications
-
-## Requirements Restatement
-- Send notifications to users when markets they're watching resolve
-- Support multiple notification channels (in-app, email, webhook)
-- Ensure notifications are delivered reliably
-- Include market outcome and user's position result
-
-## Implementation Phases
-
-### Phase 1: Database Schema
-- Add notifications table with columns: id, user_id, market_id, type, status, created_at
-- Add user_notification_preferences table for channel preferences
-- Create indexes on user_id and market_id for performance
-
-### Phase 2: Notification Service
-- Create notification service in lib/notifications.ts
-- Implement notification queue using BullMQ/Redis
-- Add retry logic for failed deliveries
-- Create notification templates
-
-### Phase 3: Integration Points
-- Hook into market resolution logic (when status changes to "resolved")
-- Query all users with positions in market
-- Enqueue notifications for each user
-
-### Phase 4: Frontend Components
-- Create NotificationBell component in header
-- Add NotificationList modal
-- Implement real-time updates via Supabase subscriptions
-- Add notification preferences page
-
-## Dependencies
-- Redis (for queue)
-- Email service (SendGrid/Resend)
-- Supabase real-time subscriptions
-
-## Risks
-- HIGH: Email deliverability (SPF/DKIM required)
-- MEDIUM: Performance with 1000+ users per market
-- MEDIUM: Notification spam if markets resolve frequently
-- LOW: Real-time subscription overhead
-
-## Estimated Complexity: MEDIUM
-- Backend: 4-6 hours
-- Frontend: 3-4 hours
-- Testing: 2-3 hours
-- Total: 9-13 hours
-
-**WAITING FOR CONFIRMATION**: Proceed with this plan? (yes/no/modify)
-```
-
-## Important Notes
-
-**CRITICAL**: The planner agent will **NOT** write any code until you explicitly confirm the plan with "yes" or "proceed" or similar affirmative response.
-
-If you want changes, respond with:
-- "modify: [your changes]"
-- "different approach: [alternative]"
-- "skip phase 2 and do phase 3 first"
-
-## Integration with Other Commands
-
-After planning:
-- Use `/tdd` to implement with test-driven development
-- Use `/build-and-fix` if build errors occur
-- Use `/code-review` to review completed implementation
-
-## Related Agents
-
-This command invokes the `planner` agent located at:
-`~/.claude/agents/planner.md`

.claude/commands/refactor-clean.md

@@ -1,28 +0,0 @@
-# Refactor Clean
-
-Safely identify and remove dead code with test verification:
-
-1. Run dead code analysis tools:
-   - knip: Find unused exports and files
-   - depcheck: Find unused dependencies
-   - ts-prune: Find unused TypeScript exports
-
-2. Generate comprehensive report in .reports/dead-code-analysis.md
-
-3. Categorize findings by severity:
-   - SAFE: Test files, unused utilities
-   - CAUTION: API routes, components
-   - DANGER: Config files, main entry points
-
-4. Propose safe deletions only
-
-5. Before each deletion:
-   - Run full test suite
-   - Verify tests pass
-   - Apply change
-   - Re-run tests
-   - Rollback if tests fail
-
-6. Show summary of cleaned items
-
-Never delete code without running tests first!

.claude/commands/setup-pm.md

@@ -1,80 +0,0 @@
----
-description: Configure your preferred package manager (npm/pnpm/yarn/bun)
-disable-model-invocation: true
----
-
-# Package Manager Setup
-
-Configure your preferred package manager for this project or globally.
-
-## Usage
-
-```bash
-# Detect current package manager
-node scripts/setup-package-manager.js --detect
-
-# Set global preference
-node scripts/setup-package-manager.js --global pnpm
-
-# Set project preference
-node scripts/setup-package-manager.js --project bun
-
-# List available package managers
-node scripts/setup-package-manager.js --list
-```
-
-## Detection Priority
-
-When determining which package manager to use, the following order is checked:
-
-1. **Environment variable**: `CLAUDE_PACKAGE_MANAGER`
-2. **Project config**: `.claude/package-manager.json`
-3. **package.json**: `packageManager` field
-4. **Lock file**: Presence of package-lock.json, yarn.lock, pnpm-lock.yaml, or bun.lockb
-5. **Global config**: `~/.claude/package-manager.json`
-6. **Fallback**: First available package manager (pnpm > bun > yarn > npm)
-
-## Configuration Files
-
-### Global Configuration
-```json
-// ~/.claude/package-manager.json
-{
-  "packageManager": "pnpm"
-}
-```
-
-### Project Configuration
-```json
-// .claude/package-manager.json
-{
-  "packageManager": "bun"
-}
-```
-
-### package.json
-```json
-{
-  "packageManager": "pnpm@8.6.0"
-}
-```
-
-## Environment Variable
-
-Set `CLAUDE_PACKAGE_MANAGER` to override all other detection methods:
-
-```bash
-# Windows (PowerShell)
-$env:CLAUDE_PACKAGE_MANAGER = "pnpm"
-
-# macOS/Linux
-export CLAUDE_PACKAGE_MANAGER=pnpm
-```
-
-## Run the Detection
-
-To see current package manager detection results, run:
-
-```bash
-node scripts/setup-package-manager.js --detect
-```

.claude/commands/tdd.md

@@ -1,326 +0,0 @@
----
-description: Enforce test-driven development workflow. Scaffold interfaces, generate tests FIRST, then implement minimal code to pass. Ensure 80%+ coverage.
----
-
-# TDD Command
-
-This command invokes the **tdd-guide** agent to enforce test-driven development methodology.
-
-## What This Command Does
-
-1. **Scaffold Interfaces** - Define types/interfaces first
-2. **Generate Tests First** - Write failing tests (RED)
-3. **Implement Minimal Code** - Write just enough to pass (GREEN)
-4. **Refactor** - Improve code while keeping tests green (REFACTOR)
-5. **Verify Coverage** - Ensure 80%+ test coverage
-
-## When to Use
-
-Use `/tdd` when:
-- Implementing new features
-- Adding new functions/components
-- Fixing bugs (write test that reproduces bug first)
-- Refactoring existing code
-- Building critical business logic
-
-## How It Works
-
-The tdd-guide agent will:
-
-1. **Define interfaces** for inputs/outputs
-2. **Write tests that will FAIL** (because code doesn't exist yet)
-3. **Run tests** and verify they fail for the right reason
-4. **Write minimal implementation** to make tests pass
-5. **Run tests** and verify they pass
-6. **Refactor** code while keeping tests green
-7. **Check coverage** and add more tests if below 80%
-
-## TDD Cycle
-
-```
-RED → GREEN → REFACTOR → REPEAT
-
-RED:      Write a failing test
-GREEN:    Write minimal code to pass
-REFACTOR: Improve code, keep tests passing
-REPEAT:   Next feature/scenario
-```
-
-## Example Usage
-
-```
-User: /tdd I need a function to calculate market liquidity score
-
-Agent (tdd-guide):
-# TDD Session: Market Liquidity Score Calculator
-
-## Step 1: Define Interface (SCAFFOLD)
-
-```typescript
-// lib/liquidity.ts
-export interface MarketData {
-  totalVolume: number
-  bidAskSpread: number
-  activeTraders: number
-  lastTradeTime: Date
-}
-
-export function calculateLiquidityScore(market: MarketData): number {
-  // TODO: Implementation
-  throw new Error('Not implemented')
-}
-```
-
-## Step 2: Write Failing Test (RED)
-
-```typescript
-// lib/liquidity.test.ts
-import { calculateLiquidityScore } from './liquidity'
-
-describe('calculateLiquidityScore', () => {
-  it('should return high score for liquid market', () => {
-    const market = {
-      totalVolume: 100000,
-      bidAskSpread: 0.01,
-      activeTraders: 500,
-      lastTradeTime: new Date()
-    }
-
-    const score = calculateLiquidityScore(market)
-
-    expect(score).toBeGreaterThan(80)
-    expect(score).toBeLessThanOrEqual(100)
-  })
-
-  it('should return low score for illiquid market', () => {
-    const market = {
-      totalVolume: 100,
-      bidAskSpread: 0.5,
-      activeTraders: 2,
-      lastTradeTime: new Date(Date.now() - 86400000) // 1 day ago
-    }
-
-    const score = calculateLiquidityScore(market)
-
-    expect(score).toBeLessThan(30)
-    expect(score).toBeGreaterThanOrEqual(0)
-  })
-
-  it('should handle edge case: zero volume', () => {
-    const market = {
-      totalVolume: 0,
-      bidAskSpread: 0,
-      activeTraders: 0,
-      lastTradeTime: new Date()
-    }
-
-    const score = calculateLiquidityScore(market)
-
-    expect(score).toBe(0)
-  })
-})
-```
-
-## Step 3: Run Tests - Verify FAIL
-
-```bash
-npm test lib/liquidity.test.ts
-
-FAIL lib/liquidity.test.ts
-  ✕ should return high score for liquid market (2 ms)
-    Error: Not implemented
-
-1 test failed, 0 passed
-```
-
-✅ Tests fail as expected. Ready to implement.
-
-## Step 4: Implement Minimal Code (GREEN)
-
-```typescript
-// lib/liquidity.ts
-export function calculateLiquidityScore(market: MarketData): number {
-  // Handle zero volume edge case
-  if (market.totalVolume === 0) {
-    return 0
-  }
-
-  // Calculate component scores (0-100 scale)
-  const volumeScore = Math.min(market.totalVolume / 1000, 100)
-  const spreadScore = Math.max(100 - (market.bidAskSpread * 1000), 0)
-  const traderScore = Math.min(market.activeTraders / 10, 100)
-
-  // Recent activity bonus
-  const hoursSinceLastTrade = (Date.now() - market.lastTradeTime.getTime()) / (1000 * 60 * 60)
-  const recencyScore = Math.max(100 - (hoursSinceLastTrade * 10), 0)
-
-  // Weighted average
-  const score = (
-    volumeScore * 0.4 +
-    spreadScore * 0.3 +
-    traderScore * 0.2 +
-    recencyScore * 0.1
-  )
-
-  return Math.min(Math.max(score, 0), 100) // Clamp to 0-100
-}
-```
-
-## Step 5: Run Tests - Verify PASS
-
-```bash
-npm test lib/liquidity.test.ts
-
-PASS lib/liquidity.test.ts
-  ✓ should return high score for liquid market (3 ms)
-  ✓ should return low score for illiquid market (2 ms)
-  ✓ should handle edge case: zero volume (1 ms)
-
-3 tests passed
-```
-
-✅ All tests passing!
-
-## Step 6: Refactor (IMPROVE)
-
-```typescript
-// lib/liquidity.ts - Refactored with constants and better readability
-const WEIGHTS = {
-  VOLUME: 0.4,
-  SPREAD: 0.3,
-  TRADERS: 0.2,
-  RECENCY: 0.1,
-} as const
-
-const SCALE_FACTORS = {
-  VOLUME: 1000,
-  SPREAD: 1000,
-  TRADERS: 10,
-  RECENCY_PENALTY: 10,
-} as const
-
-function clamp(value: number, min: number, max: number): number {
-  return Math.min(Math.max(value, min), max)
-}
-
-export function calculateLiquidityScore(market: MarketData): number {
-  if (market.totalVolume === 0) return 0
-
-  const volumeScore = Math.min(market.totalVolume / SCALE_FACTORS.VOLUME, 100)
-  const spreadScore = clamp(100 - (market.bidAskSpread * SCALE_FACTORS.SPREAD), 0, 100)
-  const traderScore = Math.min(market.activeTraders / SCALE_FACTORS.TRADERS, 100)
-
-  const hoursSinceLastTrade = (Date.now() - market.lastTradeTime.getTime()) / (1000 * 60 * 60)
-  const recencyScore = clamp(100 - (hoursSinceLastTrade * SCALE_FACTORS.RECENCY_PENALTY), 0, 100)
-
-  const weightedScore =
-    volumeScore * WEIGHTS.VOLUME +
-    spreadScore * WEIGHTS.SPREAD +
-    traderScore * WEIGHTS.TRADERS +
-    recencyScore * WEIGHTS.RECENCY
-
-  return clamp(weightedScore, 0, 100)
-}
-```
-
-## Step 7: Verify Tests Still Pass
-
-```bash
-npm test lib/liquidity.test.ts
-
-PASS lib/liquidity.test.ts
-  ✓ should return high score for liquid market (3 ms)
-  ✓ should return low score for illiquid market (2 ms)
-  ✓ should handle edge case: zero volume (1 ms)
-
-3 tests passed
-```
-
-✅ Refactoring complete, tests still passing!
-
-## Step 8: Check Coverage
-
-```bash
-npm test -- --coverage lib/liquidity.test.ts
-
-File           | % Stmts | % Branch | % Funcs | % Lines
----------------|---------|----------|---------|--------
-liquidity.ts   |   100   |   100    |   100   |   100
-
-Coverage: 100% ✅ (Target: 80%)
-```
-
-✅ TDD session complete!
-```
-
-## TDD Best Practices
-
-**DO:**
-- ✅ Write the test FIRST, before any implementation
-- ✅ Run tests and verify they FAIL before implementing
-- ✅ Write minimal code to make tests pass
-- ✅ Refactor only after tests are green
-- ✅ Add edge cases and error scenarios
-- ✅ Aim for 80%+ coverage (100% for critical code)
-
-**DON'T:**
-- ❌ Write implementation before tests
-- ❌ Skip running tests after each change
-- ❌ Write too much code at once
-- ❌ Ignore failing tests
-- ❌ Test implementation details (test behavior)
-- ❌ Mock everything (prefer integration tests)
-
-## Test Types to Include
-
-**Unit Tests** (Function-level):
-- Happy path scenarios
-- Edge cases (empty, null, max values)
-- Error conditions
-- Boundary values
-
-**Integration Tests** (Component-level):
-- API endpoints
-- Database operations
-- External service calls
-- React components with hooks
-
-**E2E Tests** (use `/e2e` command):
-- Critical user flows
-- Multi-step processes
-- Full stack integration
-
-## Coverage Requirements
-
-- **80% minimum** for all code
-- **100% required** for:
-  - Financial calculations
-  - Authentication logic
-  - Security-critical code
-  - Core business logic
-
-## Important Notes
-
-**MANDATORY**: Tests must be written BEFORE implementation. The TDD cycle is:
-
-1. **RED** - Write failing test
-2. **GREEN** - Implement to pass
-3. **REFACTOR** - Improve code
-
-Never skip the RED phase. Never write code before tests.
-
-## Integration with Other Commands
-
-- Use `/plan` first to understand what to build
-- Use `/tdd` to implement with tests
-- Use `/build-and-fix` if build errors occur
-- Use `/code-review` to review implementation
-- Use `/test-coverage` to verify coverage
-
-## Related Agents
-
-This command invokes the `tdd-guide` agent located at:
-`~/.claude/agents/tdd-guide.md`
-
-And can reference the `tdd-workflow` skill at:
-`~/.claude/skills/tdd-workflow/`

.claude/commands/test-coverage.md

@@ -1,27 +0,0 @@
-# Test Coverage
-
-Analyze test coverage and generate missing tests:
-
-1. Run tests with coverage: npm test --coverage or pnpm test --coverage
-
-2. Analyze coverage report (coverage/coverage-summary.json)
-
-3. Identify files below 80% coverage threshold
-
-4. For each under-covered file:
-   - Analyze untested code paths
-   - Generate unit tests for functions
-   - Generate integration tests for APIs
-   - Generate E2E tests for critical flows
-
-5. Verify new tests pass
-
-6. Show before/after coverage metrics
-
-7. Ensure project reaches 80%+ overall coverage
-
-Focus on:
-- Happy path scenarios
-- Error handling
-- Edge cases (null, undefined, empty)
-- Boundary conditions

.claude/commands/update-codemaps.md

@@ -1,17 +0,0 @@
-# Update Codemaps
-
-Analyze the codebase structure and update architecture documentation:
-
-1. Scan all source files for imports, exports, and dependencies
-2. Generate token-lean codemaps in the following format:
-   - codemaps/architecture.md - Overall architecture
-   - codemaps/backend.md - Backend structure  
-   - codemaps/frontend.md - Frontend structure
-   - codemaps/data.md - Data models and schemas
-
-3. Calculate diff percentage from previous version
-4. If changes > 30%, request user approval before updating
-5. Add freshness timestamp to each codemap
-6. Save reports to .reports/codemap-diff.txt
-
-Use TypeScript/Node.js for analysis. Focus on high-level structure, not implementation details.

.claude/commands/update-docs.md

@@ -1,31 +0,0 @@
-# Update Documentation
-
-Sync documentation from source-of-truth:
-
-1. Read package.json scripts section
-   - Generate scripts reference table
-   - Include descriptions from comments
-
-2. Read .env.example
-   - Extract all environment variables
-   - Document purpose and format
-
-3. Generate docs/CONTRIB.md with:
-   - Development workflow
-   - Available scripts
-   - Environment setup
-   - Testing procedures
-
-4. Generate docs/RUNBOOK.md with:
-   - Deployment procedures
-   - Monitoring and alerts
-   - Common issues and fixes
-   - Rollback procedures
-
-5. Identify obsolete documentation:
-   - Find docs not modified in 90+ days
-   - List for manual review
-
-6. Show diff summary
-
-Single source of truth: package.json and .env.example

.claude/commands/verify.md

@@ -1,59 +0,0 @@
-# Verification Command
-
-Run comprehensive verification on current codebase state.
-
-## Instructions
-
-Execute verification in this exact order:
-
-1. **Build Check**
-   - Run the build command for this project
-   - If it fails, report errors and STOP
-
-2. **Type Check**
-   - Run TypeScript/type checker
-   - Report all errors with file:line
-
-3. **Lint Check**
-   - Run linter
-   - Report warnings and errors
-
-4. **Test Suite**
-   - Run all tests
-   - Report pass/fail count
-   - Report coverage percentage
-
-5. **Console.log Audit**
-   - Search for console.log in source files
-   - Report locations
-
-6. **Git Status**
-   - Show uncommitted changes
-   - Show files modified since last commit
-
-## Output
-
-Produce a concise verification report:
-
-```
-VERIFICATION: [PASS/FAIL]
-
-Build:    [OK/FAIL]
-Types:    [OK/X errors]
-Lint:     [OK/X issues]
-Tests:    [X/Y passed, Z% coverage]
-Secrets:  [OK/X found]
-Logs:     [OK/X console.logs]
-
-Ready for PR: [YES/NO]
-```
-
-If any critical issues, list them with fix suggestions.
-
-## Arguments
-
-$ARGUMENTS can be:
-- `quick` - Only build + types
-- `full` - All checks (default)
-- `pre-commit` - Checks relevant for commits
-- `pre-pr` - Full checks plus security scan

.claude/hooks/hooks.json

@@ -1,157 +0,0 @@
-{
-  "$schema": "https://json.schemastore.org/claude-code-settings.json",
-  "hooks": {
-    "PreToolUse": [
-      {
-        "matcher": "tool == \"Bash\" && tool_input.command matches \"(npm run dev|pnpm( run)? dev|yarn dev|bun run dev)\"",
-        "hooks": [
-          {
-            "type": "command",
-            "command": "node -e \"console.error('[Hook] BLOCKED: Dev server must run in tmux for log access');console.error('[Hook] Use: tmux new-session -d -s dev \\\"npm run dev\\\"');console.error('[Hook] Then: tmux attach -t dev');process.exit(1)\""
-          }
-        ],
-        "description": "Block dev servers outside tmux - ensures you can access logs"
-      },
-      {
-        "matcher": "tool == \"Bash\" && tool_input.command matches \"(npm (install|test)|pnpm (install|test)|yarn (install|test)?|bun (install|test)|cargo build|make|docker|pytest|vitest|playwright)\"",
-        "hooks": [
-          {
-            "type": "command",
-            "command": "node -e \"if(!process.env.TMUX){console.error('[Hook] Consider running in tmux for session persistence');console.error('[Hook] tmux new -s dev  |  tmux attach -t dev')}\""
-          }
-        ],
-        "description": "Reminder to use tmux for long-running commands"
-      },
-      {
-        "matcher": "tool == \"Bash\" && tool_input.command matches \"git push\"",
-        "hooks": [
-          {
-            "type": "command",
-            "command": "node -e \"console.error('[Hook] Review changes before push...');console.error('[Hook] Continuing with push (remove this hook to add interactive review)')\""
-          }
-        ],
-        "description": "Reminder before git push to review changes"
-      },
-      {
-        "matcher": "tool == \"Write\" && tool_input.file_path matches \"\\\\.(md|txt)$\" && !(tool_input.file_path matches \"README\\\\.md|CLAUDE\\\\.md|AGENTS\\\\.md|CONTRIBUTING\\\\.md\")",
-        "hooks": [
-          {
-            "type": "command",
-            "command": "node -e \"const fs=require('fs');let d='';process.stdin.on('data',c=>d+=c);process.stdin.on('end',()=>{const i=JSON.parse(d);const p=i.tool_input?.file_path||'';if(/\\.(md|txt)$/.test(p)&&!/(README|CLAUDE|AGENTS|CONTRIBUTING)\\.md$/.test(p)){console.error('[Hook] BLOCKED: Unnecessary documentation file creation');console.error('[Hook] File: '+p);console.error('[Hook] Use README.md for documentation instead');process.exit(1)}console.log(d)})\""
-          }
-        ],
-        "description": "Block creation of random .md files - keeps docs consolidated"
-      },
-      {
-        "matcher": "tool == \"Edit\" || tool == \"Write\"",
-        "hooks": [
-          {
-            "type": "command",
-            "command": "node \"${CLAUDE_PLUGIN_ROOT}/scripts/hooks/suggest-compact.js\""
-          }
-        ],
-        "description": "Suggest manual compaction at logical intervals"
-      }
-    ],
-    "PreCompact": [
-      {
-        "matcher": "*",
-        "hooks": [
-          {
-            "type": "command",
-            "command": "node \"${CLAUDE_PLUGIN_ROOT}/scripts/hooks/pre-compact.js\""
-          }
-        ],
-        "description": "Save state before context compaction"
-      }
-    ],
-    "SessionStart": [
-      {
-        "matcher": "*",
-        "hooks": [
-          {
-            "type": "command",
-            "command": "node \"${CLAUDE_PLUGIN_ROOT}/scripts/hooks/session-start.js\""
-          }
-        ],
-        "description": "Load previous context and detect package manager on new session"
-      }
-    ],
-    "PostToolUse": [
-      {
-        "matcher": "tool == \"Bash\"",
-        "hooks": [
-          {
-            "type": "command",
-            "command": "node -e \"let d='';process.stdin.on('data',c=>d+=c);process.stdin.on('end',()=>{const i=JSON.parse(d);const cmd=i.tool_input?.command||'';if(/gh pr create/.test(cmd)){const out=i.tool_output?.output||'';const m=out.match(/https:\\/\\/github.com\\/[^/]+\\/[^/]+\\/pull\\/\\d+/);if(m){console.error('[Hook] PR created: '+m[0]);const repo=m[0].replace(/https:\\/\\/github.com\\/([^/]+\\/[^/]+)\\/pull\\/\\d+/,'$1');const pr=m[0].replace(/.*\\/pull\\/(\\d+)/,'$1');console.error('[Hook] To review: gh pr review '+pr+' --repo '+repo)}}console.log(d)})\""
-          }
-        ],
-        "description": "Log PR URL and provide review command after PR creation"
-      },
-      {
-        "matcher": "tool == \"Edit\" && tool_input.file_path matches \"\\\\.(ts|tsx|js|jsx)$\"",
-        "hooks": [
-          {
-            "type": "command",
-            "command": "node -e \"const{execSync}=require('child_process');const fs=require('fs');let d='';process.stdin.on('data',c=>d+=c);process.stdin.on('end',()=>{const i=JSON.parse(d);const p=i.tool_input?.file_path;if(p&&fs.existsSync(p)){try{execSync('npx prettier --write \"'+p+'\"',{stdio:['pipe','pipe','pipe']})}catch(e){}}console.log(d)})\""
-          }
-        ],
-        "description": "Auto-format JS/TS files with Prettier after edits"
-      },
-      {
-        "matcher": "tool == \"Edit\" && tool_input.file_path matches \"\\\\.(ts|tsx)$\"",
-        "hooks": [
-          {
-            "type": "command",
-            "command": "node -e \"const{execSync}=require('child_process');const fs=require('fs');const path=require('path');let d='';process.stdin.on('data',c=>d+=c);process.stdin.on('end',()=>{const i=JSON.parse(d);const p=i.tool_input?.file_path;if(p&&fs.existsSync(p)){let dir=path.dirname(p);while(dir!==path.dirname(dir)&&!fs.existsSync(path.join(dir,'tsconfig.json'))){dir=path.dirname(dir)}if(fs.existsSync(path.join(dir,'tsconfig.json'))){try{const r=execSync('npx tsc --noEmit --pretty false 2>&1',{cwd:dir,encoding:'utf8',stdio:['pipe','pipe','pipe']});const lines=r.split('\\n').filter(l=>l.includes(p)).slice(0,10);if(lines.length)console.error(lines.join('\\n'))}catch(e){const lines=(e.stdout||'').split('\\n').filter(l=>l.includes(p)).slice(0,10);if(lines.length)console.error(lines.join('\\n'))}}}console.log(d)})\""
-          }
-        ],
-        "description": "TypeScript check after editing .ts/.tsx files"
-      },
-      {
-        "matcher": "tool == \"Edit\" && tool_input.file_path matches \"\\\\.(ts|tsx|js|jsx)$\"",
-        "hooks": [
-          {
-            "type": "command",
-            "command": "node -e \"const fs=require('fs');let d='';process.stdin.on('data',c=>d+=c);process.stdin.on('end',()=>{const i=JSON.parse(d);const p=i.tool_input?.file_path;if(p&&fs.existsSync(p)){const c=fs.readFileSync(p,'utf8');const lines=c.split('\\n');const matches=[];lines.forEach((l,idx)=>{if(/console\\.log/.test(l))matches.push((idx+1)+': '+l.trim())});if(matches.length){console.error('[Hook] WARNING: console.log found in '+p);matches.slice(0,5).forEach(m=>console.error(m));console.error('[Hook] Remove console.log before committing')}}console.log(d)})\""
-          }
-        ],
-        "description": "Warn about console.log statements after edits"
-      }
-    ],
-    "Stop": [
-      {
-        "matcher": "*",
-        "hooks": [
-          {
-            "type": "command",
-            "command": "node -e \"const{execSync}=require('child_process');const fs=require('fs');let d='';process.stdin.on('data',c=>d+=c);process.stdin.on('end',()=>{try{execSync('git rev-parse --git-dir',{stdio:'pipe'})}catch{console.log(d);process.exit(0)}try{const files=execSync('git diff --name-only HEAD',{encoding:'utf8',stdio:['pipe','pipe','pipe']}).split('\\n').filter(f=>/\\.(ts|tsx|js|jsx)$/.test(f)&&fs.existsSync(f));let hasConsole=false;for(const f of files){if(fs.readFileSync(f,'utf8').includes('console.log')){console.error('[Hook] WARNING: console.log found in '+f);hasConsole=true}}if(hasConsole)console.error('[Hook] Remove console.log statements before committing')}catch(e){}console.log(d)})\""
-          }
-        ],
-        "description": "Check for console.log in modified files after each response"
-      }
-    ],
-    "SessionEnd": [
-      {
-        "matcher": "*",
-        "hooks": [
-          {
-            "type": "command",
-            "command": "node \"${CLAUDE_PLUGIN_ROOT}/scripts/hooks/session-end.js\""
-          }
-        ],
-        "description": "Persist session state on end"
-      },
-      {
-        "matcher": "*",
-        "hooks": [
-          {
-            "type": "command",
-            "command": "node \"${CLAUDE_PLUGIN_ROOT}/scripts/hooks/evaluate-session.js\""
-          }
-        ],
-        "description": "Evaluate session for extractable patterns"
-      }
-    ]
-  }
-}

.claude/hooks/memory-persistence/pre-compact.sh

@@ -1,36 +0,0 @@
-#!/bin/bash
-# PreCompact Hook - Save state before context compaction
-#
-# Runs before Claude compacts context, giving you a chance to
-# preserve important state that might get lost in summarization.
-#
-# Hook config (in ~/.claude/settings.json):
-# {
-#   "hooks": {
-#     "PreCompact": [{
-#       "matcher": "*",
-#       "hooks": [{
-#         "type": "command",
-#         "command": "~/.claude/hooks/memory-persistence/pre-compact.sh"
-#       }]
-#     }]
-#   }
-# }
-
-SESSIONS_DIR="${HOME}/.claude/sessions"
-COMPACTION_LOG="${SESSIONS_DIR}/compaction-log.txt"
-
-mkdir -p "$SESSIONS_DIR"
-
-# Log compaction event with timestamp
-echo "[$(date '+%Y-%m-%d %H:%M:%S')] Context compaction triggered" >> "$COMPACTION_LOG"
-
-# If there's an active session file, note the compaction
-ACTIVE_SESSION=$(ls -t "$SESSIONS_DIR"/*.tmp 2>/dev/null | head -1)
-if [ -n "$ACTIVE_SESSION" ]; then
-  echo "" >> "$ACTIVE_SESSION"
-  echo "---" >> "$ACTIVE_SESSION"
-  echo "**[Compaction occurred at $(date '+%H:%M')]** - Context was summarized" >> "$ACTIVE_SESSION"
-fi
-
-echo "[PreCompact] State saved before compaction" >&2

.claude/hooks/memory-persistence/session-end.sh

@@ -1,61 +0,0 @@
-#!/bin/bash
-# Stop Hook (Session End) - Persist learnings when session ends
-#
-# Runs when Claude session ends. Creates/updates session log file
-# with timestamp for continuity tracking.
-#
-# Hook config (in ~/.claude/settings.json):
-# {
-#   "hooks": {
-#     "Stop": [{
-#       "matcher": "*",
-#       "hooks": [{
-#         "type": "command",
-#         "command": "~/.claude/hooks/memory-persistence/session-end.sh"
-#       }]
-#     }]
-#   }
-# }
-
-SESSIONS_DIR="${HOME}/.claude/sessions"
-TODAY=$(date '+%Y-%m-%d')
-SESSION_FILE="${SESSIONS_DIR}/${TODAY}-session.tmp"
-
-mkdir -p "$SESSIONS_DIR"
-
-# If session file exists for today, update the end time
-if [ -f "$SESSION_FILE" ]; then
-  # Update Last Updated timestamp
-  sed -i '' "s/\*\*Last Updated:\*\*.*/\*\*Last Updated:\*\* $(date '+%H:%M')/" "$SESSION_FILE" 2>/dev/null || \
-  sed -i "s/\*\*Last Updated:\*\*.*/\*\*Last Updated:\*\* $(date '+%H:%M')/" "$SESSION_FILE" 2>/dev/null
-  echo "[SessionEnd] Updated session file: $SESSION_FILE" >&2
-else
-  # Create new session file with template
-  cat > "$SESSION_FILE" << EOF
-# Session: $(date '+%Y-%m-%d')
-**Date:** $TODAY
-**Started:** $(date '+%H:%M')
-**Last Updated:** $(date '+%H:%M')
-
----
-
-## Current State
-
-[Session context goes here]
-
-### Completed
-- [ ]
-
-### In Progress
-- [ ]
-
-### Notes for Next Session
--
-
-### Context to Load
-\`\`\`
-[relevant files]
-\`\`\`
-EOF
-  echo "[SessionEnd] Created session file: $SESSION_FILE" >&2
-fi

.claude/hooks/memory-persistence/session-start.sh

@@ -1,37 +0,0 @@
-#!/bin/bash
-# SessionStart Hook - Load previous context on new session
-#
-# Runs when a new Claude session starts. Checks for recent session
-# files and notifies Claude of available context to load.
-#
-# Hook config (in ~/.claude/settings.json):
-# {
-#   "hooks": {
-#     "SessionStart": [{
-#       "matcher": "*",
-#       "hooks": [{
-#         "type": "command",
-#         "command": "~/.claude/hooks/memory-persistence/session-start.sh"
-#       }]
-#     }]
-#   }
-# }
-
-SESSIONS_DIR="${HOME}/.claude/sessions"
-LEARNED_DIR="${HOME}/.claude/skills/learned"
-
-# Check for recent session files (last 7 days)
-recent_sessions=$(find "$SESSIONS_DIR" -name "*.tmp" -mtime -7 2>/dev/null | wc -l | tr -d ' ')
-
-if [ "$recent_sessions" -gt 0 ]; then
-  latest=$(ls -t "$SESSIONS_DIR"/*.tmp 2>/dev/null | head -1)
-  echo "[SessionStart] Found $recent_sessions recent session(s)" >&2
-  echo "[SessionStart] Latest: $latest" >&2
-fi
-
-# Check for learned skills
-learned_count=$(find "$LEARNED_DIR" -name "*.md" 2>/dev/null | wc -l | tr -d ' ')
-
-if [ "$learned_count" -gt 0 ]; then
-  echo "[SessionStart] $learned_count learned skill(s) available in $LEARNED_DIR" >&2
-fi

.claude/hooks/strategic-compact/suggest-compact.sh

@@ -1,52 +0,0 @@
-#!/bin/bash
-# Strategic Compact Suggester
-# Runs on PreToolUse or periodically to suggest manual compaction at logical intervals
-#
-# Why manual over auto-compact:
-# - Auto-compact happens at arbitrary points, often mid-task
-# - Strategic compacting preserves context through logical phases
-# - Compact after exploration, before execution
-# - Compact after completing a milestone, before starting next
-#
-# Hook config (in ~/.claude/settings.json):
-# {
-#   "hooks": {
-#     "PreToolUse": [{
-#       "matcher": "Edit|Write",
-#       "hooks": [{
-#         "type": "command",
-#         "command": "~/.claude/skills/strategic-compact/suggest-compact.sh"
-#       }]
-#     }]
-#   }
-# }
-#
-# Criteria for suggesting compact:
-# - Session has been running for extended period
-# - Large number of tool calls made
-# - Transitioning from research/exploration to implementation
-# - Plan has been finalized
-
-# Track tool call count (increment in a temp file)
-COUNTER_FILE="/tmp/claude-tool-count-$$"
-THRESHOLD=${COMPACT_THRESHOLD:-50}
-
-# Initialize or increment counter
-if [ -f "$COUNTER_FILE" ]; then
-  count=$(cat "$COUNTER_FILE")
-  count=$((count + 1))
-  echo "$count" > "$COUNTER_FILE"
-else
-  echo "1" > "$COUNTER_FILE"
-  count=1
-fi
-
-# Suggest compact after threshold tool calls
-if [ "$count" -eq "$THRESHOLD" ]; then
-  echo "[StrategicCompact] $THRESHOLD tool calls reached - consider /compact if transitioning phases" >&2
-fi
-
-# Suggest at regular intervals after threshold
-if [ "$count" -gt "$THRESHOLD" ] && [ $((count % 25)) -eq 0 ]; then
-  echo "[StrategicCompact] $count tool calls - good checkpoint for /compact if context is stale" >&2
-fi

.claude/skills/backend-patterns/SKILL.md

@@ -1,314 +0,0 @@
-# Backend Development Patterns
-
-Backend architecture patterns for Python/FastAPI/PostgreSQL applications.
-
-## API Design
-
-### RESTful Structure
-
-```
-GET    /api/v1/documents              # List
-GET    /api/v1/documents/{id}         # Get
-POST   /api/v1/documents              # Create
-PUT    /api/v1/documents/{id}         # Replace
-PATCH  /api/v1/documents/{id}         # Update
-DELETE /api/v1/documents/{id}         # Delete
-
-GET /api/v1/documents?status=processed&sort=created_at&limit=20&offset=0
-```
-
-### FastAPI Route Pattern
-
-```python
-from fastapi import APIRouter, HTTPException, Depends, Query, File, UploadFile
-from pydantic import BaseModel
-
-router = APIRouter(prefix="/api/v1", tags=["inference"])
-
-@router.post("/infer", response_model=ApiResponse[InferenceResult])
-async def infer_document(
-    file: UploadFile = File(...),
-    confidence_threshold: float = Query(0.5, ge=0, le=1),
-    service: InferenceService = Depends(get_inference_service)
-) -> ApiResponse[InferenceResult]:
-    result = await service.process(file, confidence_threshold)
-    return ApiResponse(success=True, data=result)
-```
-
-### Consistent Response Schema
-
-```python
-from typing import Generic, TypeVar
-T = TypeVar('T')
-
-class ApiResponse(BaseModel, Generic[T]):
-    success: bool
-    data: T | None = None
-    error: str | None = None
-    meta: dict | None = None
-```
-
-## Core Patterns
-
-### Repository Pattern
-
-```python
-from typing import Protocol
-
-class DocumentRepository(Protocol):
-    def find_all(self, filters: dict | None = None) -> list[Document]: ...
-    def find_by_id(self, id: str) -> Document | None: ...
-    def create(self, data: dict) -> Document: ...
-    def update(self, id: str, data: dict) -> Document: ...
-    def delete(self, id: str) -> None: ...
-```
-
-### Service Layer
-
-```python
-class InferenceService:
-    def __init__(self, model_path: str, use_gpu: bool = True):
-        self.pipeline = InferencePipeline(model_path=model_path, use_gpu=use_gpu)
-
-    async def process(self, file: UploadFile, confidence_threshold: float) -> InferenceResult:
-        temp_path = self._save_temp_file(file)
-        try:
-            return self.pipeline.process_pdf(temp_path)
-        finally:
-            temp_path.unlink(missing_ok=True)
-```
-
-### Dependency Injection
-
-```python
-from functools import lru_cache
-from pydantic_settings import BaseSettings
-
-class Settings(BaseSettings):
-    db_host: str = "localhost"
-    db_password: str
-    model_path: str = "runs/train/invoice_fields/weights/best.pt"
-    class Config:
-        env_file = ".env"
-
-@lru_cache()
-def get_settings() -> Settings:
-    return Settings()
-
-def get_inference_service(settings: Settings = Depends(get_settings)) -> InferenceService:
-    return InferenceService(model_path=settings.model_path)
-```
-
-## Database Patterns
-
-### Connection Pooling
-
-```python
-from psycopg2 import pool
-from contextlib import contextmanager
-
-db_pool = pool.ThreadedConnectionPool(minconn=2, maxconn=10, **db_config)
-
-@contextmanager
-def get_db_connection():
-    conn = db_pool.getconn()
-    try:
-        yield conn
-    finally:
-        db_pool.putconn(conn)
-```
-
-### Query Optimization
-
-```python
-# GOOD: Select only needed columns
-cur.execute("""
-    SELECT id, status, fields->>'InvoiceNumber' as invoice_number
-    FROM documents WHERE status = %s
-    ORDER BY created_at DESC LIMIT %s
-""", ('processed', 10))
-
-# BAD: SELECT * FROM documents
-```
-
-### N+1 Prevention
-
-```python
-# BAD: N+1 queries
-for doc in documents:
-    doc.labels = get_labels(doc.id)  # N queries
-
-# GOOD: Batch fetch with JOIN
-cur.execute("""
-    SELECT d.id, d.status, array_agg(l.label) as labels
-    FROM documents d
-    LEFT JOIN document_labels l ON d.id = l.document_id
-    GROUP BY d.id, d.status
-""")
-```
-
-### Transaction Pattern
-
-```python
-def create_document_with_labels(doc_data: dict, labels: list[dict]) -> str:
-    with get_db_connection() as conn:
-        try:
-            with conn.cursor() as cur:
-                cur.execute("INSERT INTO documents ... RETURNING id", ...)
-                doc_id = cur.fetchone()[0]
-                for label in labels:
-                    cur.execute("INSERT INTO document_labels ...", ...)
-                conn.commit()
-                return doc_id
-        except Exception:
-            conn.rollback()
-            raise
-```
-
-## Caching
-
-```python
-from cachetools import TTLCache
-
-_cache = TTLCache(maxsize=1000, ttl=300)
-
-def get_document_cached(doc_id: str) -> Document | None:
-    if doc_id in _cache:
-        return _cache[doc_id]
-    doc = repo.find_by_id(doc_id)
-    if doc:
-        _cache[doc_id] = doc
-    return doc
-```
-
-## Error Handling
-
-### Exception Hierarchy
-
-```python
-class AppError(Exception):
-    def __init__(self, message: str, status_code: int = 500):
-        self.message = message
-        self.status_code = status_code
-
-class NotFoundError(AppError):
-    def __init__(self, resource: str, id: str):
-        super().__init__(f"{resource} not found: {id}", 404)
-
-class ValidationError(AppError):
-    def __init__(self, message: str):
-        super().__init__(message, 400)
-```
-
-### FastAPI Exception Handler
-
-```python
-@app.exception_handler(AppError)
-async def app_error_handler(request: Request, exc: AppError):
-    return JSONResponse(status_code=exc.status_code, content={"success": False, "error": exc.message})
-
-@app.exception_handler(Exception)
-async def generic_error_handler(request: Request, exc: Exception):
-    logger.error(f"Unexpected error: {exc}", exc_info=True)
-    return JSONResponse(status_code=500, content={"success": False, "error": "Internal server error"})
-```
-
-### Retry with Backoff
-
-```python
-async def retry_with_backoff(fn, max_retries: int = 3, base_delay: float = 1.0):
-    last_error = None
-    for attempt in range(max_retries):
-        try:
-            return await fn() if asyncio.iscoroutinefunction(fn) else fn()
-        except Exception as e:
-            last_error = e
-            if attempt < max_retries - 1:
-                await asyncio.sleep(base_delay * (2 ** attempt))
-    raise last_error
-```
-
-## Rate Limiting
-
-```python
-from time import time
-from collections import defaultdict
-
-class RateLimiter:
-    def __init__(self):
-        self.requests: dict[str, list[float]] = defaultdict(list)
-
-    def check_limit(self, identifier: str, max_requests: int, window_sec: int) -> bool:
-        now = time()
-        self.requests[identifier] = [t for t in self.requests[identifier] if now - t < window_sec]
-        if len(self.requests[identifier]) >= max_requests:
-            return False
-        self.requests[identifier].append(now)
-        return True
-
-limiter = RateLimiter()
-
-@app.middleware("http")
-async def rate_limit_middleware(request: Request, call_next):
-    ip = request.client.host
-    if not limiter.check_limit(ip, max_requests=100, window_sec=60):
-        return JSONResponse(status_code=429, content={"error": "Rate limit exceeded"})
-    return await call_next(request)
-```
-
-## Logging & Middleware
-
-### Request Logging
-
-```python
-@app.middleware("http")
-async def log_requests(request: Request, call_next):
-    request_id = str(uuid.uuid4())[:8]
-    start_time = time.time()
-    logger.info(f"[{request_id}] {request.method} {request.url.path}")
-    response = await call_next(request)
-    duration_ms = (time.time() - start_time) * 1000
-    logger.info(f"[{request_id}] Completed {response.status_code} in {duration_ms:.2f}ms")
-    return response
-```
-
-### Structured Logging
-
-```python
-class JSONFormatter(logging.Formatter):
-    def format(self, record):
-        return json.dumps({
-            "timestamp": datetime.utcnow().isoformat(),
-            "level": record.levelname,
-            "message": record.getMessage(),
-            "module": record.module,
-        })
-```
-
-## Background Tasks
-
-```python
-from fastapi import BackgroundTasks
-
-def send_notification(document_id: str, status: str):
-    logger.info(f"Notification: {document_id} -> {status}")
-
-@router.post("/infer")
-async def infer(file: UploadFile, background_tasks: BackgroundTasks):
-    result = await process_document(file)
-    background_tasks.add_task(send_notification, result.document_id, "completed")
-    return result
-```
-
-## Key Principles
-
-- Repository pattern: Abstract data access
-- Service layer: Business logic separated from routes
-- Dependency injection via `Depends()`
-- Connection pooling for database
-- Parameterized queries only (no f-strings in SQL)
-- Batch fetch to prevent N+1
-- Consistent `ApiResponse[T]` format
-- Exception hierarchy with proper status codes
-- Rate limit by IP
-- Structured logging with request ID

.claude/skills/coding-standards/SKILL.md

@@ -1,665 +0,0 @@
----
-name: coding-standards
-description: Universal coding standards, best practices, and patterns for Python, FastAPI, and data processing development.
----
-
-# Coding Standards & Best Practices
-
-Python coding standards for the Invoice Master project.
-
-## Code Quality Principles
-
-### 1. Readability First
-- Code is read more than written
-- Clear variable and function names
-- Self-documenting code preferred over comments
-- Consistent formatting (follow PEP 8)
-
-### 2. KISS (Keep It Simple, Stupid)
-- Simplest solution that works
-- Avoid over-engineering
-- No premature optimization
-- Easy to understand > clever code
-
-### 3. DRY (Don't Repeat Yourself)
-- Extract common logic into functions
-- Create reusable utilities
-- Share modules across the codebase
-- Avoid copy-paste programming
-
-### 4. YAGNI (You Aren't Gonna Need It)
-- Don't build features before they're needed
-- Avoid speculative generality
-- Add complexity only when required
-- Start simple, refactor when needed
-
-## Python Standards
-
-### Variable Naming
-
-```python
-# GOOD: Descriptive names
-invoice_number = "INV-2024-001"
-is_valid_document = True
-total_confidence_score = 0.95
-
-# BAD: Unclear names
-inv = "INV-2024-001"
-flag = True
-x = 0.95
-```
-
-### Function Naming
-
-```python
-# GOOD: Verb-noun pattern with type hints
-def extract_invoice_fields(pdf_path: Path) -> dict[str, str]:
-    """Extract fields from invoice PDF."""
-    ...
-
-def calculate_confidence(predictions: list[float]) -> float:
-    """Calculate average confidence score."""
-    ...
-
-def is_valid_bankgiro(value: str) -> bool:
-    """Check if value is valid Bankgiro number."""
-    ...
-
-# BAD: Unclear or noun-only
-def invoice(path):
-    ...
-
-def confidence(p):
-    ...
-
-def bankgiro(v):
-    ...
-```
-
-### Type Hints (REQUIRED)
-
-```python
-# GOOD: Full type annotations
-from typing import Optional
-from pathlib import Path
-from dataclasses import dataclass
-
-@dataclass
-class InferenceResult:
-    document_id: str
-    fields: dict[str, str]
-    confidence: dict[str, float]
-    processing_time_ms: float
-
-def process_document(
-    pdf_path: Path,
-    confidence_threshold: float = 0.5
-) -> InferenceResult:
-    """Process PDF and return extracted fields."""
-    ...
-
-# BAD: No type hints
-def process_document(pdf_path, confidence_threshold=0.5):
-    ...
-```
-
-### Immutability Pattern (CRITICAL)
-
-```python
-# GOOD: Create new objects, don't mutate
-def update_fields(fields: dict[str, str], updates: dict[str, str]) -> dict[str, str]:
-    return {**fields, **updates}
-
-def add_item(items: list[str], new_item: str) -> list[str]:
-    return [*items, new_item]
-
-# BAD: Direct mutation
-def update_fields(fields: dict[str, str], updates: dict[str, str]) -> dict[str, str]:
-    fields.update(updates)  # MUTATION!
-    return fields
-
-def add_item(items: list[str], new_item: str) -> list[str]:
-    items.append(new_item)  # MUTATION!
-    return items
-```
-
-### Error Handling
-
-```python
-import logging
-
-logger = logging.getLogger(__name__)
-
-# GOOD: Comprehensive error handling with logging
-def load_model(model_path: Path) -> Model:
-    """Load YOLO model from path."""
-    try:
-        if not model_path.exists():
-            raise FileNotFoundError(f"Model not found: {model_path}")
-
-        model = YOLO(str(model_path))
-        logger.info(f"Model loaded: {model_path}")
-        return model
-    except Exception as e:
-        logger.error(f"Failed to load model: {e}")
-        raise RuntimeError(f"Model loading failed: {model_path}") from e
-
-# BAD: No error handling
-def load_model(model_path):
-    return YOLO(str(model_path))
-
-# BAD: Bare except
-def load_model(model_path):
-    try:
-        return YOLO(str(model_path))
-    except:  # Never use bare except!
-        return None
-```
-
-### Async Best Practices
-
-```python
-import asyncio
-
-# GOOD: Parallel execution when possible
-async def process_batch(pdf_paths: list[Path]) -> list[InferenceResult]:
-    tasks = [process_document(path) for path in pdf_paths]
-    results = await asyncio.gather(*tasks, return_exceptions=True)
-
-    # Handle exceptions
-    valid_results = []
-    for path, result in zip(pdf_paths, results):
-        if isinstance(result, Exception):
-            logger.error(f"Failed to process {path}: {result}")
-        else:
-            valid_results.append(result)
-    return valid_results
-
-# BAD: Sequential when unnecessary
-async def process_batch(pdf_paths: list[Path]) -> list[InferenceResult]:
-    results = []
-    for path in pdf_paths:
-        result = await process_document(path)
-        results.append(result)
-    return results
-```
-
-### Context Managers
-
-```python
-from contextlib import contextmanager
-from pathlib import Path
-import tempfile
-
-# GOOD: Proper resource management
-@contextmanager
-def temp_pdf_copy(pdf_path: Path):
-    """Create temporary copy of PDF for processing."""
-    with tempfile.NamedTemporaryFile(suffix=".pdf", delete=False) as tmp:
-        tmp.write(pdf_path.read_bytes())
-        tmp_path = Path(tmp.name)
-    try:
-        yield tmp_path
-    finally:
-        tmp_path.unlink(missing_ok=True)
-
-# Usage
-with temp_pdf_copy(original_pdf) as tmp_pdf:
-    result = process_pdf(tmp_pdf)
-```
-
-## FastAPI Best Practices
-
-### Route Structure
-
-```python
-from fastapi import APIRouter, HTTPException, Depends, Query, File, UploadFile
-from pydantic import BaseModel
-
-router = APIRouter(prefix="/api/v1", tags=["inference"])
-
-class InferenceResponse(BaseModel):
-    success: bool
-    document_id: str
-    fields: dict[str, str]
-    confidence: dict[str, float]
-    processing_time_ms: float
-
-@router.post("/infer", response_model=InferenceResponse)
-async def infer_document(
-    file: UploadFile = File(...),
-    confidence_threshold: float = Query(0.5, ge=0.0, le=1.0)
-) -> InferenceResponse:
-    """Process invoice PDF and extract fields."""
-    if not file.filename.endswith(".pdf"):
-        raise HTTPException(status_code=400, detail="Only PDF files accepted")
-
-    result = await inference_service.process(file, confidence_threshold)
-    return InferenceResponse(
-        success=True,
-        document_id=result.document_id,
-        fields=result.fields,
-        confidence=result.confidence,
-        processing_time_ms=result.processing_time_ms
-    )
-```
-
-### Input Validation with Pydantic
-
-```python
-from pydantic import BaseModel, Field, field_validator
-from datetime import date
-import re
-
-class InvoiceData(BaseModel):
-    invoice_number: str = Field(..., min_length=1, max_length=50)
-    invoice_date: date
-    amount: float = Field(..., gt=0)
-    bankgiro: str | None = None
-    ocr_number: str | None = None
-
-    @field_validator("bankgiro")
-    @classmethod
-    def validate_bankgiro(cls, v: str | None) -> str | None:
-        if v is None:
-            return None
-        # Bankgiro: 7-8 digits
-        cleaned = re.sub(r"[^0-9]", "", v)
-        if not (7 <= len(cleaned) <= 8):
-            raise ValueError("Bankgiro must be 7-8 digits")
-        return cleaned
-
-    @field_validator("ocr_number")
-    @classmethod
-    def validate_ocr(cls, v: str | None) -> str | None:
-        if v is None:
-            return None
-        # OCR: 2-25 digits
-        cleaned = re.sub(r"[^0-9]", "", v)
-        if not (2 <= len(cleaned) <= 25):
-            raise ValueError("OCR must be 2-25 digits")
-        return cleaned
-```
-
-### Response Format
-
-```python
-from pydantic import BaseModel
-from typing import Generic, TypeVar
-
-T = TypeVar("T")
-
-class ApiResponse(BaseModel, Generic[T]):
-    success: bool
-    data: T | None = None
-    error: str | None = None
-    meta: dict | None = None
-
-# Success response
-return ApiResponse(
-    success=True,
-    data=result,
-    meta={"processing_time_ms": elapsed_ms}
-)
-
-# Error response
-return ApiResponse(
-    success=False,
-    error="Invalid PDF format"
-)
-```
-
-## File Organization
-
-### Project Structure
-
-```
-src/
-├── cli/                  # Command-line interfaces
-│   ├── autolabel.py
-│   ├── train.py
-│   └── infer.py
-├── pdf/                  # PDF processing
-│   ├── extractor.py
-│   └── renderer.py
-├── ocr/                  # OCR processing
-│   ├── paddle_ocr.py
-│   └── machine_code_parser.py
-├── inference/            # Inference pipeline
-│   ├── pipeline.py
-│   ├── yolo_detector.py
-│   └── field_extractor.py
-├── normalize/            # Field normalization
-│   ├── base.py
-│   ├── date_normalizer.py
-│   └── amount_normalizer.py
-├── web/                  # FastAPI application
-│   ├── app.py
-│   ├── routes.py
-│   ├── services.py
-│   └── schemas.py
-└── utils/                # Shared utilities
-    ├── validators.py
-    ├── text_cleaner.py
-    └── logging.py
-tests/                    # Mirror of src structure
-    ├── test_pdf/
-    ├── test_ocr/
-    └── test_inference/
-```
-
-### File Naming
-
-```
-src/ocr/paddle_ocr.py           # snake_case for modules
-src/inference/yolo_detector.py  # snake_case for modules
-tests/test_paddle_ocr.py        # test_ prefix for tests
-config.py                       # snake_case for config
-```
-
-### Module Size Guidelines
-
-- **Maximum**: 800 lines per file
-- **Typical**: 200-400 lines per file
-- **Functions**: Max 50 lines each
-- Extract utilities when modules grow too large
-
-## Comments & Documentation
-
-### When to Comment
-
-```python
-# GOOD: Explain WHY, not WHAT
-# Swedish Bankgiro uses Luhn algorithm with weight [1,2,1,2...]
-def validate_bankgiro_checksum(bankgiro: str) -> bool:
-    ...
-
-# Payment line format: 7 groups separated by #, checksum at end
-def parse_payment_line(line: str) -> PaymentLineData:
-    ...
-
-# BAD: Stating the obvious
-# Increment counter by 1
-count += 1
-
-# Set name to user's name
-name = user.name
-```
-
-### Docstrings for Public APIs
-
-```python
-def extract_invoice_fields(
-    pdf_path: Path,
-    confidence_threshold: float = 0.5,
-    use_gpu: bool = True
-) -> InferenceResult:
-    """Extract structured fields from Swedish invoice PDF.
-
-    Uses YOLOv11 for field detection and PaddleOCR for text extraction.
-    Applies field-specific normalization and validation.
-
-    Args:
-        pdf_path: Path to the invoice PDF file.
-        confidence_threshold: Minimum confidence for field detection (0.0-1.0).
-        use_gpu: Whether to use GPU acceleration.
-
-    Returns:
-        InferenceResult containing extracted fields and confidence scores.
-
-    Raises:
-        FileNotFoundError: If PDF file doesn't exist.
-        ProcessingError: If OCR or detection fails.
-
-    Example:
-        >>> result = extract_invoice_fields(Path("invoice.pdf"))
-        >>> print(result.fields["invoice_number"])
-        "INV-2024-001"
-    """
-    ...
-```
-
-## Performance Best Practices
-
-### Caching
-
-```python
-from functools import lru_cache
-from cachetools import TTLCache
-
-# Static data: LRU cache
-@lru_cache(maxsize=100)
-def get_field_config(field_name: str) -> FieldConfig:
-    """Load field configuration (cached)."""
-    return load_config(field_name)
-
-# Dynamic data: TTL cache
-_document_cache = TTLCache(maxsize=1000, ttl=300)  # 5 minutes
-
-def get_document_cached(doc_id: str) -> Document | None:
-    if doc_id in _document_cache:
-        return _document_cache[doc_id]
-
-    doc = repo.find_by_id(doc_id)
-    if doc:
-        _document_cache[doc_id] = doc
-    return doc
-```
-
-### Database Queries
-
-```python
-# GOOD: Select only needed columns
-cur.execute("""
-    SELECT id, status, fields->>'invoice_number'
-    FROM documents
-    WHERE status = %s
-    LIMIT %s
-""", ('processed', 10))
-
-# BAD: Select everything
-cur.execute("SELECT * FROM documents")
-
-# GOOD: Batch operations
-cur.executemany(
-    "INSERT INTO labels (doc_id, field, value) VALUES (%s, %s, %s)",
-    [(doc_id, f, v) for f, v in fields.items()]
-)
-
-# BAD: Individual inserts in loop
-for field, value in fields.items():
-    cur.execute("INSERT INTO labels ...", (doc_id, field, value))
-```
-
-### Lazy Loading
-
-```python
-class InferencePipeline:
-    def __init__(self, model_path: Path):
-        self.model_path = model_path
-        self._model: YOLO | None = None
-        self._ocr: PaddleOCR | None = None
-
-    @property
-    def model(self) -> YOLO:
-        """Lazy load YOLO model."""
-        if self._model is None:
-            self._model = YOLO(str(self.model_path))
-        return self._model
-
-    @property
-    def ocr(self) -> PaddleOCR:
-        """Lazy load PaddleOCR."""
-        if self._ocr is None:
-            self._ocr = PaddleOCR(use_angle_cls=True, lang="latin")
-        return self._ocr
-```
-
-## Testing Standards
-
-### Test Structure (AAA Pattern)
-
-```python
-def test_extract_bankgiro_valid():
-    # Arrange
-    text = "Bankgiro: 123-4567"
-
-    # Act
-    result = extract_bankgiro(text)
-
-    # Assert
-    assert result == "1234567"
-
-def test_extract_bankgiro_invalid_returns_none():
-    # Arrange
-    text = "No bankgiro here"
-
-    # Act
-    result = extract_bankgiro(text)
-
-    # Assert
-    assert result is None
-```
-
-### Test Naming
-
-```python
-# GOOD: Descriptive test names
-def test_parse_payment_line_extracts_all_fields(): ...
-def test_parse_payment_line_handles_missing_checksum(): ...
-def test_validate_ocr_returns_false_for_invalid_checksum(): ...
-
-# BAD: Vague test names
-def test_parse(): ...
-def test_works(): ...
-def test_payment_line(): ...
-```
-
-### Fixtures
-
-```python
-import pytest
-from pathlib import Path
-
-@pytest.fixture
-def sample_invoice_pdf(tmp_path: Path) -> Path:
-    """Create sample invoice PDF for testing."""
-    pdf_path = tmp_path / "invoice.pdf"
-    # Create test PDF...
-    return pdf_path
-
-@pytest.fixture
-def inference_pipeline(sample_model_path: Path) -> InferencePipeline:
-    """Create inference pipeline with test model."""
-    return InferencePipeline(sample_model_path)
-
-def test_process_invoice(inference_pipeline, sample_invoice_pdf):
-    result = inference_pipeline.process(sample_invoice_pdf)
-    assert result.fields.get("invoice_number") is not None
-```
-
-## Code Smell Detection
-
-### 1. Long Functions
-
-```python
-# BAD: Function > 50 lines
-def process_document():
-    # 100 lines of code...
-
-# GOOD: Split into smaller functions
-def process_document(pdf_path: Path) -> InferenceResult:
-    image = render_pdf(pdf_path)
-    detections = detect_fields(image)
-    ocr_results = extract_text(image, detections)
-    fields = normalize_fields(ocr_results)
-    return build_result(fields)
-```
-
-### 2. Deep Nesting
-
-```python
-# BAD: 5+ levels of nesting
-if document:
-    if document.is_valid:
-        if document.has_fields:
-            if field in document.fields:
-                if document.fields[field]:
-                    # Do something
-
-# GOOD: Early returns
-if not document:
-    return None
-if not document.is_valid:
-    return None
-if not document.has_fields:
-    return None
-if field not in document.fields:
-    return None
-if not document.fields[field]:
-    return None
-
-# Do something
-```
-
-### 3. Magic Numbers
-
-```python
-# BAD: Unexplained numbers
-if confidence > 0.5:
-    ...
-time.sleep(3)
-
-# GOOD: Named constants
-CONFIDENCE_THRESHOLD = 0.5
-RETRY_DELAY_SECONDS = 3
-
-if confidence > CONFIDENCE_THRESHOLD:
-    ...
-time.sleep(RETRY_DELAY_SECONDS)
-```
-
-### 4. Mutable Default Arguments
-
-```python
-# BAD: Mutable default argument
-def process_fields(fields: list = []):  # DANGEROUS!
-    fields.append("new_field")
-    return fields
-
-# GOOD: Use None as default
-def process_fields(fields: list | None = None) -> list:
-    if fields is None:
-        fields = []
-    return [*fields, "new_field"]
-```
-
-## Logging Standards
-
-```python
-import logging
-
-# Module-level logger
-logger = logging.getLogger(__name__)
-
-# GOOD: Appropriate log levels
-logger.debug("Processing document: %s", doc_id)
-logger.info("Document processed successfully: %s", doc_id)
-logger.warning("Low confidence score: %.2f", confidence)
-logger.error("Failed to process document: %s", error)
-
-# GOOD: Structured logging with extra data
-logger.info(
-    "Inference complete",
-    extra={
-        "document_id": doc_id,
-        "field_count": len(fields),
-        "processing_time_ms": elapsed_ms
-    }
-)
-
-# BAD: Using print()
-print(f"Processing {doc_id}")  # Never in production!
-```
-
-**Remember**: Code quality is not negotiable. Clear, maintainable Python code with proper type hints enables confident development and refactoring.

.claude/skills/continuous-learning/SKILL.md

@@ -1,80 +0,0 @@
----
-name: continuous-learning
-description: Automatically extract reusable patterns from Claude Code sessions and save them as learned skills for future use.
----
-
-# Continuous Learning Skill
-
-Automatically evaluates Claude Code sessions on end to extract reusable patterns that can be saved as learned skills.
-
-## How It Works
-
-This skill runs as a **Stop hook** at the end of each session:
-
-1. **Session Evaluation**: Checks if session has enough messages (default: 10+)
-2. **Pattern Detection**: Identifies extractable patterns from the session
-3. **Skill Extraction**: Saves useful patterns to `~/.claude/skills/learned/`
-
-## Configuration
-
-Edit `config.json` to customize:
-
-```json
-{
-  "min_session_length": 10,
-  "extraction_threshold": "medium",
-  "auto_approve": false,
-  "learned_skills_path": "~/.claude/skills/learned/",
-  "patterns_to_detect": [
-    "error_resolution",
-    "user_corrections",
-    "workarounds",
-    "debugging_techniques",
-    "project_specific"
-  ],
-  "ignore_patterns": [
-    "simple_typos",
-    "one_time_fixes",
-    "external_api_issues"
-  ]
-}
-```
-
-## Pattern Types
-
-| Pattern | Description |
-|---------|-------------|
-| `error_resolution` | How specific errors were resolved |
-| `user_corrections` | Patterns from user corrections |
-| `workarounds` | Solutions to framework/library quirks |
-| `debugging_techniques` | Effective debugging approaches |
-| `project_specific` | Project-specific conventions |
-
-## Hook Setup
-
-Add to your `~/.claude/settings.json`:
-
-```json
-{
-  "hooks": {
-    "Stop": [{
-      "matcher": "*",
-      "hooks": [{
-        "type": "command",
-        "command": "~/.claude/skills/continuous-learning/evaluate-session.sh"
-      }]
-    }]
-  }
-}
-```
-
-## Why Stop Hook?
-
-- **Lightweight**: Runs once at session end
-- **Non-blocking**: Doesn't add latency to every message
-- **Complete context**: Has access to full session transcript
-
-## Related
-
-- [The Longform Guide](https://x.com/affaanmustafa/status/2014040193557471352) - Section on continuous learning
-- `/learn` command - Manual pattern extraction mid-session

.claude/skills/continuous-learning/config.json

@@ -1,18 +0,0 @@
-{
-  "min_session_length": 10,
-  "extraction_threshold": "medium",
-  "auto_approve": false,
-  "learned_skills_path": "~/.claude/skills/learned/",
-  "patterns_to_detect": [
-    "error_resolution",
-    "user_corrections",
-    "workarounds",
-    "debugging_techniques",
-    "project_specific"
-  ],
-  "ignore_patterns": [
-    "simple_typos",
-    "one_time_fixes",
-    "external_api_issues"
-  ]
-}

.claude/skills/continuous-learning/evaluate-session.sh

@@ -1,60 +0,0 @@
-#!/bin/bash
-# Continuous Learning - Session Evaluator
-# Runs on Stop hook to extract reusable patterns from Claude Code sessions
-#
-# Why Stop hook instead of UserPromptSubmit:
-# - Stop runs once at session end (lightweight)
-# - UserPromptSubmit runs every message (heavy, adds latency)
-#
-# Hook config (in ~/.claude/settings.json):
-# {
-#   "hooks": {
-#     "Stop": [{
-#       "matcher": "*",
-#       "hooks": [{
-#         "type": "command",
-#         "command": "~/.claude/skills/continuous-learning/evaluate-session.sh"
-#       }]
-#     }]
-#   }
-# }
-#
-# Patterns to detect: error_resolution, debugging_techniques, workarounds, project_specific
-# Patterns to ignore: simple_typos, one_time_fixes, external_api_issues
-# Extracted skills saved to: ~/.claude/skills/learned/
-
-set -e
-
-SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-CONFIG_FILE="$SCRIPT_DIR/config.json"
-LEARNED_SKILLS_PATH="${HOME}/.claude/skills/learned"
-MIN_SESSION_LENGTH=10
-
-# Load config if exists
-if [ -f "$CONFIG_FILE" ]; then
-  MIN_SESSION_LENGTH=$(jq -r '.min_session_length // 10' "$CONFIG_FILE")
-  LEARNED_SKILLS_PATH=$(jq -r '.learned_skills_path // "~/.claude/skills/learned/"' "$CONFIG_FILE" | sed "s|~|$HOME|")
-fi
-
-# Ensure learned skills directory exists
-mkdir -p "$LEARNED_SKILLS_PATH"
-
-# Get transcript path from environment (set by Claude Code)
-transcript_path="${CLAUDE_TRANSCRIPT_PATH:-}"
-
-if [ -z "$transcript_path" ] || [ ! -f "$transcript_path" ]; then
-  exit 0
-fi
-
-# Count messages in session
-message_count=$(grep -c '"type":"user"' "$transcript_path" 2>/dev/null || echo "0")
-
-# Skip short sessions
-if [ "$message_count" -lt "$MIN_SESSION_LENGTH" ]; then
-  echo "[ContinuousLearning] Session too short ($message_count messages), skipping" >&2
-  exit 0
-fi
-
-# Signal to Claude that session should be evaluated for extractable patterns
-echo "[ContinuousLearning] Session has $message_count messages - evaluate for extractable patterns" >&2
-echo "[ContinuousLearning] Save learned skills to: $LEARNED_SKILLS_PATH" >&2

.claude/skills/eval-harness/SKILL.md

@@ -1,221 +0,0 @@
-# Eval Harness Skill
-
-A formal evaluation framework for Claude Code sessions, implementing eval-driven development (EDD) principles.
-
-## Philosophy
-
-Eval-Driven Development treats evals as the "unit tests of AI development":
-- Define expected behavior BEFORE implementation
-- Run evals continuously during development
-- Track regressions with each change
-- Use pass@k metrics for reliability measurement
-
-## Eval Types
-
-### Capability Evals
-Test if Claude can do something it couldn't before:
-```markdown
-[CAPABILITY EVAL: feature-name]
-Task: Description of what Claude should accomplish
-Success Criteria:
-  - [ ] Criterion 1
-  - [ ] Criterion 2
-  - [ ] Criterion 3
-Expected Output: Description of expected result
-```
-
-### Regression Evals
-Ensure changes don't break existing functionality:
-```markdown
-[REGRESSION EVAL: feature-name]
-Baseline: SHA or checkpoint name
-Tests:
-  - existing-test-1: PASS/FAIL
-  - existing-test-2: PASS/FAIL
-  - existing-test-3: PASS/FAIL
-Result: X/Y passed (previously Y/Y)
-```
-
-## Grader Types
-
-### 1. Code-Based Grader
-Deterministic checks using code:
-```bash
-# Check if file contains expected pattern
-grep -q "export function handleAuth" src/auth.ts && echo "PASS" || echo "FAIL"
-
-# Check if tests pass
-npm test -- --testPathPattern="auth" && echo "PASS" || echo "FAIL"
-
-# Check if build succeeds
-npm run build && echo "PASS" || echo "FAIL"
-```
-
-### 2. Model-Based Grader
-Use Claude to evaluate open-ended outputs:
-```markdown
-[MODEL GRADER PROMPT]
-Evaluate the following code change:
-1. Does it solve the stated problem?
-2. Is it well-structured?
-3. Are edge cases handled?
-4. Is error handling appropriate?
-
-Score: 1-5 (1=poor, 5=excellent)
-Reasoning: [explanation]
-```
-
-### 3. Human Grader
-Flag for manual review:
-```markdown
-[HUMAN REVIEW REQUIRED]
-Change: Description of what changed
-Reason: Why human review is needed
-Risk Level: LOW/MEDIUM/HIGH
-```
-
-## Metrics
-
-### pass@k
-"At least one success in k attempts"
-- pass@1: First attempt success rate
-- pass@3: Success within 3 attempts
-- Typical target: pass@3 > 90%
-
-### pass^k
-"All k trials succeed"
-- Higher bar for reliability
-- pass^3: 3 consecutive successes
-- Use for critical paths
-
-## Eval Workflow
-
-### 1. Define (Before Coding)
-```markdown
-## EVAL DEFINITION: feature-xyz
-
-### Capability Evals
-1. Can create new user account
-2. Can validate email format
-3. Can hash password securely
-
-### Regression Evals
-1. Existing login still works
-2. Session management unchanged
-3. Logout flow intact
-
-### Success Metrics
-- pass@3 > 90% for capability evals
-- pass^3 = 100% for regression evals
-```
-
-### 2. Implement
-Write code to pass the defined evals.
-
-### 3. Evaluate
-```bash
-# Run capability evals
-[Run each capability eval, record PASS/FAIL]
-
-# Run regression evals
-npm test -- --testPathPattern="existing"
-
-# Generate report
-```
-
-### 4. Report
-```markdown
-EVAL REPORT: feature-xyz
-========================
-
-Capability Evals:
-  create-user:     PASS (pass@1)
-  validate-email:  PASS (pass@2)
-  hash-password:   PASS (pass@1)
-  Overall:         3/3 passed
-
-Regression Evals:
-  login-flow:      PASS
-  session-mgmt:    PASS
-  logout-flow:     PASS
-  Overall:         3/3 passed
-
-Metrics:
-  pass@1: 67% (2/3)
-  pass@3: 100% (3/3)
-
-Status: READY FOR REVIEW
-```
-
-## Integration Patterns
-
-### Pre-Implementation
-```
-/eval define feature-name
-```
-Creates eval definition file at `.claude/evals/feature-name.md`
-
-### During Implementation
-```
-/eval check feature-name
-```
-Runs current evals and reports status
-
-### Post-Implementation
-```
-/eval report feature-name
-```
-Generates full eval report
-
-## Eval Storage
-
-Store evals in project:
-```
-.claude/
-  evals/
-    feature-xyz.md      # Eval definition
-    feature-xyz.log     # Eval run history
-    baseline.json       # Regression baselines
-```
-
-## Best Practices
-
-1. **Define evals BEFORE coding** - Forces clear thinking about success criteria
-2. **Run evals frequently** - Catch regressions early
-3. **Track pass@k over time** - Monitor reliability trends
-4. **Use code graders when possible** - Deterministic > probabilistic
-5. **Human review for security** - Never fully automate security checks
-6. **Keep evals fast** - Slow evals don't get run
-7. **Version evals with code** - Evals are first-class artifacts
-
-## Example: Adding Authentication
-
-```markdown
-## EVAL: add-authentication
-
-### Phase 1: Define (10 min)
-Capability Evals:
-- [ ] User can register with email/password
-- [ ] User can login with valid credentials
-- [ ] Invalid credentials rejected with proper error
-- [ ] Sessions persist across page reloads
-- [ ] Logout clears session
-
-Regression Evals:
-- [ ] Public routes still accessible
-- [ ] API responses unchanged
-- [ ] Database schema compatible
-
-### Phase 2: Implement (varies)
-[Write code]
-
-### Phase 3: Evaluate
-Run: /eval check add-authentication
-
-### Phase 4: Report
-EVAL REPORT: add-authentication
-==============================
-Capability: 5/5 passed (pass@3: 100%)
-Regression: 3/3 passed (pass^3: 100%)
-Status: SHIP IT
-```

.claude/skills/frontend-patterns/SKILL.md

@@ -1,631 +0,0 @@
----
-name: frontend-patterns
-description: Frontend development patterns for React, Next.js, state management, performance optimization, and UI best practices.
----
-
-# Frontend Development Patterns
-
-Modern frontend patterns for React, Next.js, and performant user interfaces.
-
-## Component Patterns
-
-### Composition Over Inheritance
-
-```typescript
-// ✅ GOOD: Component composition
-interface CardProps {
-  children: React.ReactNode
-  variant?: 'default' | 'outlined'
-}
-
-export function Card({ children, variant = 'default' }: CardProps) {
-  return <div className={`card card-${variant}`}>{children}</div>
-}
-
-export function CardHeader({ children }: { children: React.ReactNode }) {
-  return <div className="card-header">{children}</div>
-}
-
-export function CardBody({ children }: { children: React.ReactNode }) {
-  return <div className="card-body">{children}</div>
-}
-
-// Usage
-<Card>
-  <CardHeader>Title</CardHeader>
-  <CardBody>Content</CardBody>
-</Card>
-```
-
-### Compound Components
-
-```typescript
-interface TabsContextValue {
-  activeTab: string
-  setActiveTab: (tab: string) => void
-}
-
-const TabsContext = createContext<TabsContextValue | undefined>(undefined)
-
-export function Tabs({ children, defaultTab }: {
-  children: React.ReactNode
-  defaultTab: string
-}) {
-  const [activeTab, setActiveTab] = useState(defaultTab)
-
-  return (
-    <TabsContext.Provider value={{ activeTab, setActiveTab }}>
-      {children}
-    </TabsContext.Provider>
-  )
-}
-
-export function TabList({ children }: { children: React.ReactNode }) {
-  return <div className="tab-list">{children}</div>
-}
-
-export function Tab({ id, children }: { id: string, children: React.ReactNode }) {
-  const context = useContext(TabsContext)
-  if (!context) throw new Error('Tab must be used within Tabs')
-
-  return (
-    <button
-      className={context.activeTab === id ? 'active' : ''}
-      onClick={() => context.setActiveTab(id)}
-    >
-      {children}
-    </button>
-  )
-}
-
-// Usage
-<Tabs defaultTab="overview">
-  <TabList>
-    <Tab id="overview">Overview</Tab>
-    <Tab id="details">Details</Tab>
-  </TabList>
-</Tabs>
-```
-
-### Render Props Pattern
-
-```typescript
-interface DataLoaderProps<T> {
-  url: string
-  children: (data: T | null, loading: boolean, error: Error | null) => React.ReactNode
-}
-
-export function DataLoader<T>({ url, children }: DataLoaderProps<T>) {
-  const [data, setData] = useState<T | null>(null)
-  const [loading, setLoading] = useState(true)
-  const [error, setError] = useState<Error | null>(null)
-
-  useEffect(() => {
-    fetch(url)
-      .then(res => res.json())
-      .then(setData)
-      .catch(setError)
-      .finally(() => setLoading(false))
-  }, [url])
-
-  return <>{children(data, loading, error)}</>
-}
-
-// Usage
-<DataLoader<Market[]> url="/api/markets">
-  {(markets, loading, error) => {
-    if (loading) return <Spinner />
-    if (error) return <Error error={error} />
-    return <MarketList markets={markets!} />
-  }}
-</DataLoader>
-```
-
-## Custom Hooks Patterns
-
-### State Management Hook
-
-```typescript
-export function useToggle(initialValue = false): [boolean, () => void] {
-  const [value, setValue] = useState(initialValue)
-
-  const toggle = useCallback(() => {
-    setValue(v => !v)
-  }, [])
-
-  return [value, toggle]
-}
-
-// Usage
-const [isOpen, toggleOpen] = useToggle()
-```
-
-### Async Data Fetching Hook
-
-```typescript
-interface UseQueryOptions<T> {
-  onSuccess?: (data: T) => void
-  onError?: (error: Error) => void
-  enabled?: boolean
-}
-
-export function useQuery<T>(
-  key: string,
-  fetcher: () => Promise<T>,
-  options?: UseQueryOptions<T>
-) {
-  const [data, setData] = useState<T | null>(null)
-  const [error, setError] = useState<Error | null>(null)
-  const [loading, setLoading] = useState(false)
-
-  const refetch = useCallback(async () => {
-    setLoading(true)
-    setError(null)
-
-    try {
-      const result = await fetcher()
-      setData(result)
-      options?.onSuccess?.(result)
-    } catch (err) {
-      const error = err as Error
-      setError(error)
-      options?.onError?.(error)
-    } finally {
-      setLoading(false)
-    }
-  }, [fetcher, options])
-
-  useEffect(() => {
-    if (options?.enabled !== false) {
-      refetch()
-    }
-  }, [key, refetch, options?.enabled])
-
-  return { data, error, loading, refetch }
-}
-
-// Usage
-const { data: markets, loading, error, refetch } = useQuery(
-  'markets',
-  () => fetch('/api/markets').then(r => r.json()),
-  {
-    onSuccess: data => console.log('Fetched', data.length, 'markets'),
-    onError: err => console.error('Failed:', err)
-  }
-)
-```
-
-### Debounce Hook
-
-```typescript
-export function useDebounce<T>(value: T, delay: number): T {
-  const [debouncedValue, setDebouncedValue] = useState<T>(value)
-
-  useEffect(() => {
-    const handler = setTimeout(() => {
-      setDebouncedValue(value)
-    }, delay)
-
-    return () => clearTimeout(handler)
-  }, [value, delay])
-
-  return debouncedValue
-}
-
-// Usage
-const [searchQuery, setSearchQuery] = useState('')
-const debouncedQuery = useDebounce(searchQuery, 500)
-
-useEffect(() => {
-  if (debouncedQuery) {
-    performSearch(debouncedQuery)
-  }
-}, [debouncedQuery])
-```
-
-## State Management Patterns
-
-### Context + Reducer Pattern
-
-```typescript
-interface State {
-  markets: Market[]
-  selectedMarket: Market | null
-  loading: boolean
-}
-
-type Action =
-  | { type: 'SET_MARKETS'; payload: Market[] }
-  | { type: 'SELECT_MARKET'; payload: Market }
-  | { type: 'SET_LOADING'; payload: boolean }
-
-function reducer(state: State, action: Action): State {
-  switch (action.type) {
-    case 'SET_MARKETS':
-      return { ...state, markets: action.payload }
-    case 'SELECT_MARKET':
-      return { ...state, selectedMarket: action.payload }
-    case 'SET_LOADING':
-      return { ...state, loading: action.payload }
-    default:
-      return state
-  }
-}
-
-const MarketContext = createContext<{
-  state: State
-  dispatch: Dispatch<Action>
-} | undefined>(undefined)
-
-export function MarketProvider({ children }: { children: React.ReactNode }) {
-  const [state, dispatch] = useReducer(reducer, {
-    markets: [],
-    selectedMarket: null,
-    loading: false
-  })
-
-  return (
-    <MarketContext.Provider value={{ state, dispatch }}>
-      {children}
-    </MarketContext.Provider>
-  )
-}
-
-export function useMarkets() {
-  const context = useContext(MarketContext)
-  if (!context) throw new Error('useMarkets must be used within MarketProvider')
-  return context
-}
-```
-
-## Performance Optimization
-
-### Memoization
-
-```typescript
-// ✅ useMemo for expensive computations
-const sortedMarkets = useMemo(() => {
-  return markets.sort((a, b) => b.volume - a.volume)
-}, [markets])
-
-// ✅ useCallback for functions passed to children
-const handleSearch = useCallback((query: string) => {
-  setSearchQuery(query)
-}, [])
-
-// ✅ React.memo for pure components
-export const MarketCard = React.memo<MarketCardProps>(({ market }) => {
-  return (
-    <div className="market-card">
-      <h3>{market.name}</h3>
-      <p>{market.description}</p>
-    </div>
-  )
-})
-```
-
-### Code Splitting & Lazy Loading
-
-```typescript
-import { lazy, Suspense } from 'react'
-
-// ✅ Lazy load heavy components
-const HeavyChart = lazy(() => import('./HeavyChart'))
-const ThreeJsBackground = lazy(() => import('./ThreeJsBackground'))
-
-export function Dashboard() {
-  return (
-    <div>
-      <Suspense fallback={<ChartSkeleton />}>
-        <HeavyChart data={data} />
-      </Suspense>
-
-      <Suspense fallback={null}>
-        <ThreeJsBackground />
-      </Suspense>
-    </div>
-  )
-}
-```
-
-### Virtualization for Long Lists
-
-```typescript
-import { useVirtualizer } from '@tanstack/react-virtual'
-
-export function VirtualMarketList({ markets }: { markets: Market[] }) {
-  const parentRef = useRef<HTMLDivElement>(null)
-
-  const virtualizer = useVirtualizer({
-    count: markets.length,
-    getScrollElement: () => parentRef.current,
-    estimateSize: () => 100,  // Estimated row height
-    overscan: 5  // Extra items to render
-  })
-
-  return (
-    <div ref={parentRef} style={{ height: '600px', overflow: 'auto' }}>
-      <div
-        style={{
-          height: `${virtualizer.getTotalSize()}px`,
-          position: 'relative'
-        }}
-      >
-        {virtualizer.getVirtualItems().map(virtualRow => (
-          <div
-            key={virtualRow.index}
-            style={{
-              position: 'absolute',
-              top: 0,
-              left: 0,
-              width: '100%',
-              height: `${virtualRow.size}px`,
-              transform: `translateY(${virtualRow.start}px)`
-            }}
-          >
-            <MarketCard market={markets[virtualRow.index]} />
-          </div>
-        ))}
-      </div>
-    </div>
-  )
-}
-```
-
-## Form Handling Patterns
-
-### Controlled Form with Validation
-
-```typescript
-interface FormData {
-  name: string
-  description: string
-  endDate: string
-}
-
-interface FormErrors {
-  name?: string
-  description?: string
-  endDate?: string
-}
-
-export function CreateMarketForm() {
-  const [formData, setFormData] = useState<FormData>({
-    name: '',
-    description: '',
-    endDate: ''
-  })
-
-  const [errors, setErrors] = useState<FormErrors>({})
-
-  const validate = (): boolean => {
-    const newErrors: FormErrors = {}
-
-    if (!formData.name.trim()) {
-      newErrors.name = 'Name is required'
-    } else if (formData.name.length > 200) {
-      newErrors.name = 'Name must be under 200 characters'
-    }
-
-    if (!formData.description.trim()) {
-      newErrors.description = 'Description is required'
-    }
-
-    if (!formData.endDate) {
-      newErrors.endDate = 'End date is required'
-    }
-
-    setErrors(newErrors)
-    return Object.keys(newErrors).length === 0
-  }
-
-  const handleSubmit = async (e: React.FormEvent) => {
-    e.preventDefault()
-
-    if (!validate()) return
-
-    try {
-      await createMarket(formData)
-      // Success handling
-    } catch (error) {
-      // Error handling
-    }
-  }
-
-  return (
-    <form onSubmit={handleSubmit}>
-      <input
-        value={formData.name}
-        onChange={e => setFormData(prev => ({ ...prev, name: e.target.value }))}
-        placeholder="Market name"
-      />
-      {errors.name && <span className="error">{errors.name}</span>}
-
-      {/* Other fields */}
-
-      <button type="submit">Create Market</button>
-    </form>
-  )
-}
-```
-
-## Error Boundary Pattern
-
-```typescript
-interface ErrorBoundaryState {
-  hasError: boolean
-  error: Error | null
-}
-
-export class ErrorBoundary extends React.Component<
-  { children: React.ReactNode },
-  ErrorBoundaryState
-> {
-  state: ErrorBoundaryState = {
-    hasError: false,
-    error: null
-  }
-
-  static getDerivedStateFromError(error: Error): ErrorBoundaryState {
-    return { hasError: true, error }
-  }
-
-  componentDidCatch(error: Error, errorInfo: React.ErrorInfo) {
-    console.error('Error boundary caught:', error, errorInfo)
-  }
-
-  render() {
-    if (this.state.hasError) {
-      return (
-        <div className="error-fallback">
-          <h2>Something went wrong</h2>
-          <p>{this.state.error?.message}</p>
-          <button onClick={() => this.setState({ hasError: false })}>
-            Try again
-          </button>
-        </div>
-      )
-    }
-
-    return this.props.children
-  }
-}
-
-// Usage
-<ErrorBoundary>
-  <App />
-</ErrorBoundary>
-```
-
-## Animation Patterns
-
-### Framer Motion Animations
-
-```typescript
-import { motion, AnimatePresence } from 'framer-motion'
-
-// ✅ List animations
-export function AnimatedMarketList({ markets }: { markets: Market[] }) {
-  return (
-    <AnimatePresence>
-      {markets.map(market => (
-        <motion.div
-          key={market.id}
-          initial={{ opacity: 0, y: 20 }}
-          animate={{ opacity: 1, y: 0 }}
-          exit={{ opacity: 0, y: -20 }}
-          transition={{ duration: 0.3 }}
-        >
-          <MarketCard market={market} />
-        </motion.div>
-      ))}
-    </AnimatePresence>
-  )
-}
-
-// ✅ Modal animations
-export function Modal({ isOpen, onClose, children }: ModalProps) {
-  return (
-    <AnimatePresence>
-      {isOpen && (
-        <>
-          <motion.div
-            className="modal-overlay"
-            initial={{ opacity: 0 }}
-            animate={{ opacity: 1 }}
-            exit={{ opacity: 0 }}
-            onClick={onClose}
-          />
-          <motion.div
-            className="modal-content"
-            initial={{ opacity: 0, scale: 0.9, y: 20 }}
-            animate={{ opacity: 1, scale: 1, y: 0 }}
-            exit={{ opacity: 0, scale: 0.9, y: 20 }}
-          >
-            {children}
-          </motion.div>
-        </>
-      )}
-    </AnimatePresence>
-  )
-}
-```
-
-## Accessibility Patterns
-
-### Keyboard Navigation
-
-```typescript
-export function Dropdown({ options, onSelect }: DropdownProps) {
-  const [isOpen, setIsOpen] = useState(false)
-  const [activeIndex, setActiveIndex] = useState(0)
-
-  const handleKeyDown = (e: React.KeyboardEvent) => {
-    switch (e.key) {
-      case 'ArrowDown':
-        e.preventDefault()
-        setActiveIndex(i => Math.min(i + 1, options.length - 1))
-        break
-      case 'ArrowUp':
-        e.preventDefault()
-        setActiveIndex(i => Math.max(i - 1, 0))
-        break
-      case 'Enter':
-        e.preventDefault()
-        onSelect(options[activeIndex])
-        setIsOpen(false)
-        break
-      case 'Escape':
-        setIsOpen(false)
-        break
-    }
-  }
-
-  return (
-    <div
-      role="combobox"
-      aria-expanded={isOpen}
-      aria-haspopup="listbox"
-      onKeyDown={handleKeyDown}
-    >
-      {/* Dropdown implementation */}
-    </div>
-  )
-}
-```
-
-### Focus Management
-
-```typescript
-export function Modal({ isOpen, onClose, children }: ModalProps) {
-  const modalRef = useRef<HTMLDivElement>(null)
-  const previousFocusRef = useRef<HTMLElement | null>(null)
-
-  useEffect(() => {
-    if (isOpen) {
-      // Save currently focused element
-      previousFocusRef.current = document.activeElement as HTMLElement
-
-      // Focus modal
-      modalRef.current?.focus()
-    } else {
-      // Restore focus when closing
-      previousFocusRef.current?.focus()
-    }
-  }, [isOpen])
-
-  return isOpen ? (
-    <div
-      ref={modalRef}
-      role="dialog"
-      aria-modal="true"
-      tabIndex={-1}
-      onKeyDown={e => e.key === 'Escape' && onClose()}
-    >
-      {children}
-    </div>
-  ) : null
-}
-```
-
-**Remember**: Modern frontend patterns enable maintainable, performant user interfaces. Choose patterns that fit your project complexity.

.claude/skills/product-spec-builder/SKILL.md

@@ -1,335 +0,0 @@
----
-name: product-spec-builder
-description: 当用户表达想要开发产品、应用、工具或任何软件项目时，或者用户想要迭代现有功能、新增需求、修改产品规格时，使用此技能。0-1 阶段通过深入对话收集需求并生成 Product Spec；迭代阶段帮助用户想清楚变更内容并更新现有 Product Spec。
----
-
-[角色]
-    你是废才，一位看透无数产品生死的资深产品经理。
-    
-    你见过太多人带着"改变世界"的妄想来找你，最后连需求都说不清楚。
-    你也见过真正能成事的人——他们不一定聪明，但足够诚实，敢于面对自己想法的漏洞。
-    
-    你不是来讨好用户的。你是来帮他们把脑子里的浆糊变成可执行的产品文档的。
-    如果他们的想法有问题，你会直接说。如果他们在自欺欺人，你会戳破。
-    
-    你的冷酷不是恶意，是效率。情绪是最好的思考燃料，而你擅长点火。
-
-[任务]
-    **0-1 模式**：通过深入对话收集用户的产品需求，用直白甚至刺耳的追问逼迫用户想清楚，最终生成一份结构完整、细节丰富、可直接用于 AI 开发的 Product Spec 文档，并输出为 .md 文件供用户下载使用。
-    
-    **迭代模式**：当用户在开发过程中提出新功能、修改需求或迭代想法时，通过追问帮助用户想清楚变更内容，检测与现有 Spec 的冲突，直接更新 Product Spec 文件，并自动记录变更日志。
-
-[第一性原则]
-    **AI优先原则**：用户提出的所有功能，首先考虑如何用 AI 来实现。
-    
-    - 遇到任何功能需求，第一反应是：这个能不能用 AI 做？能做到什么程度？
-    - 主动询问用户：这个功能要不要加一个「AI一键优化」或「AI智能推荐」？
-    - 如果用户描述的功能明显可以用 AI 增强，直接建议，不要等用户想到
-    - 最终输出的 Product Spec 必须明确列出需要的 AI 能力类型
-    
-    **简单优先原则**：复杂度是产品的敌人。
-    
-    - 能用现成服务的，不自己造轮子
-    - 每增加一个功能都要问「真的需要吗」
-    - 第一版做最小可行产品，验证了再加功能
-
-[技能]
-    - **需求挖掘**：通过开放式提问引导用户表达想法，捕捉关键信息
-    - **追问深挖**：针对模糊描述追问细节，不接受"大概"、"可能"、"应该"
-    - **AI能力识别**：根据功能需求，识别需要的 AI 能力类型（文本、图像、语音等）
-    - **技术需求引导**：通过业务问题推断技术需求，帮助无编程基础的用户理解技术选择
-    - **布局设计**：深入挖掘界面布局需求，确保每个页面有清晰的空间规范
-    - **漏洞识别**：发现用户想法中的矛盾、遗漏、自欺欺人之处，直接指出
-    - **冲突检测**：在迭代时检测新需求与现有 Spec 的冲突，主动指出并给出解决方案
-    - **方案引导**：当用户不知道怎么做时，提供 2-3 个选项 + 优劣分析，逼用户选择
-    - **结构化思维**：将零散信息整理为清晰的产品框架
-    - **文档输出**：按照标准模板生成专业的 Product Spec，输出为 .md 文件
-
-[文件结构]
-    ```
-    product-spec-builder/
-    ├── SKILL.md                           # 主 Skill 定义（本文件）
-    └── templates/
-        ├── product-spec-template.md       # Product Spec 输出模板
-        └── changelog-template.md          # 变更记录模板
-    ```
-
-[输出风格]
-    **语态**：
-    - 直白、冷静，偶尔带着看透世事的冷漠
-    - 不奉承、不迎合、不说"这个想法很棒"之类的废话
-    - 该嘲讽时嘲讽，该肯定时也会肯定（但很少）
-    
-    **原则**：
-    - × 绝不给模棱两可的废话
-    - × 绝不假装用户的想法没问题（如果有问题就直接说）
-    - × 绝不浪费时间在无意义的客套上
-    - ✓ 一针见血的建议，哪怕听起来刺耳
-    - ✓ 用追问逼迫用户自己想清楚，而不是替他们想
-    - ✓ 主动建议 AI 增强方案，不等用户开口
-    - ✓ 偶尔的毒舌是为了激发思考，不是为了伤害
-    
-    **典型表达**：
-    - "你说的这个功能，用户真的需要，还是你觉得他们需要？"
-    - "这个手动操作完全可以让 AI 来做，你为什么要让用户自己填？"
-    - "别跟我说'用户体验好'，告诉我具体好在哪里。"
-    - "你现在描述的这个东西，市面上已经有十个了。你的凭什么能活？"
-    - "这里要不要加个 AI 一键优化？用户自己填这些参数，你觉得他们填得好吗？"
-    - "左边放什么右边放什么，你想清楚了吗？还是打算让开发自己猜？"
-    - "想清楚了？那我们继续。没想清楚？那就继续想。"
-
-[需求维度清单]
-    在对话过程中，需要收集以下维度的信息（不必按顺序，根据对话自然推进）：
-
-    **必须收集**（没有这些，Product Spec 就是废纸）：
-    - 产品定位：这是什么？解决什么问题？凭什么是你来做？
-    - 目标用户：谁会用？为什么用？不用会死吗？
-    - 核心功能：必须有什么功能？砍掉什么功能产品就不成立？
-    - 用户流程：用户怎么用？从打开到完成任务的完整路径是什么？
-    - AI能力需求：哪些功能需要 AI？需要哪种类型的 AI 能力？
-
-    **尽量收集**（有这些，Product Spec 才能落地）：
-    - 整体布局：几栏布局？左右还是上下？各区域比例多少？
-    - 区域内容：每个区域放什么？哪个是输入区，哪个是输出区？
-    - 控件规范：输入框铺满还是定宽？按钮放哪里？下拉框选项有哪些？
-    - 输入输出：用户输入什么？系统输出什么？格式是什么？
-    - 应用场景：3-5个具体场景，越具体越好
-    - AI增强点：哪些地方可以加「AI一键优化」或「AI智能推荐」？
-    - 技术复杂度：需要用户登录吗？数据存哪里？需要服务器吗？
-
-    **可选收集**（锦上添花）：
-    - 技术偏好：有没有特定技术要求？
-    - 参考产品：有没有可以抄的对象？抄哪里，不抄哪里？
-    - 优先级：第一期做什么，第二期做什么？
-
-[对话策略]
-    **开场策略**：
-    - 不废话，直接基于用户已表达的内容开始追问
-    - 让用户先倒完脑子里的东西，再开始解剖
-
-    **追问策略**：
-    - 每次只追问 1-2 个问题，问题要直击要害
-    - 不接受模糊回答："大概"、"可能"、"应该"、"用户会喜欢的" → 追问到底
-    - 发现逻辑漏洞，直接指出，不留情面
-    - 发现用户在自嗨，冷静泼冷水
-    - 当用户说"界面你看着办"或"随便"，不惯着，用具体选项逼他们决策
-    - 布局必须问到具体：几栏、比例、各区域内容、控件规范
-
-    **方案引导策略**：
-    - 用户知道但没说清楚 → 继续逼问，不给方案
-    - 用户真不知道 → 给 2-3 个选项 + 各自优劣，根据产品类型给针对性建议
-    - 给完继续逼他选，选完继续逼下一个细节
-    - 选项是工具，不是退路
-
-    **AI能力引导策略**：
-    - 每当用户描述一个功能，主动思考：这个能不能用 AI 做？
-    - 主动询问："这里要不要加个 AI 一键XX？"
-    - 用户设计了繁琐的手动流程 → 直接建议用 AI 简化
-    - 对话后期，主动总结需要的 AI 能力类型
-
-    **技术需求引导策略**：
-    - 用户没有编程基础，不直接问技术问题，通过业务场景推断技术需求
-    - 遵循简单优先原则，能不加复杂度就不加
-    - 用户想要的功能会大幅增加复杂度时，先劝退或建议分期
-
-    **确认策略**：
-    - 定期复述已收集的信息，发现矛盾直接质问
-    - 信息够了就推进，不拖泥带水
-    - 用户说"差不多了"但信息明显不够，继续问
-
-    **搜索策略**：
-    - 涉及可能变化的信息（技术、行业、竞品），先上网搜索再开口
-
-[信息充足度判断]
-    当以下条件满足时，可以生成 Product Spec：
-    
-    **必须满足**：
-    - ✅ 产品定位清晰（能用一句人话说明白这是什么）
-    - ✅ 目标用户明确（知道给谁用、为什么用）
-    - ✅ 核心功能明确（至少3个功能点，且能说清楚为什么需要）
-    - ✅ 用户流程清晰（至少一条完整路径，从头到尾）
-    - ✅ AI能力需求明确（知道哪些功能需要 AI，用什么类型的 AI）
-    
-    **尽量满足**：
-    - ✅ 整体布局有方向（知道大概是什么结构）
-    - ✅ 控件有基本规范（主要输入输出方式清楚）
-
-    如果「必须满足」条件未达成，继续追问，不要勉强生成一份垃圾文档。
-    如果「尽量满足」条件未达成，可以生成但标注 [待补充]。
-
-[启动检查]
-    Skill 启动时，首先执行以下检查：
-    
-    第一步：扫描项目目录，按优先级查找产品需求文档
-        优先级1（精确匹配）：Product-Spec.md
-        优先级2（扩大匹配）：*spec*.md、*prd*.md、*PRD*.md、*需求*.md、*product*.md
-        
-        匹配规则：
-        - 找到 1 个文件 → 直接使用
-        - 找到多个候选文件 → 列出文件名问用户"你要改的是哪个？"
-        - 没找到 → 进入 0-1 模式
-    
-    第二步：判断模式
-        - 找到产品需求文档 → 进入 **迭代模式**
-        - 没找到 → 进入 **0-1 模式**
-    
-    第三步：执行对应流程
-        - 0-1 模式：执行 [工作流程（0-1模式）]
-        - 迭代模式：执行 [工作流程（迭代模式）]
-
-[工作流程（0-1模式）]
-    [需求探索阶段]
-        目的：让用户把脑子里的东西倒出来
-
-        第一步：接住用户
-            **先上网搜索**：根据用户表达的产品想法上网搜索相关信息，了解最新情况
-            基于用户已经表达的内容，直接开始追问
-            不重复问"你想做什么"，用户已经说过了
-
-        第二步：追问
-            **先上网搜索**：根据用户表达的内容上网搜索相关信息，确保追问基于最新知识
-            针对模糊、矛盾、自嗨的地方，直接追问
-            每次1-2个问题，问到点子上
-            同时思考哪些功能可以用 AI 增强
-
-        第三步：阶段性确认
-            复述理解，确认没跑偏
-            有问题当场纠正
-
-    [需求完善阶段]
-        目的：填补漏洞，逼用户想清楚，确定 AI 能力需求和界面布局
-
-        第一步：漏洞识别
-            对照 [需求维度清单]，找出缺失的关键信息
-
-        第二步：逼问
-            **先上网搜索**：针对缺失项上网搜索相关信息，确保给出的建议和方案是最新的
-            针对缺失项设计问题
-            不接受敷衍回答
-            布局问题要问到具体：几栏、比例、各区域内容、控件规范
-
-        第三步：AI能力引导
-            **先上网搜索**：上网搜索最新的 AI 能力和最佳实践，确保建议不过时
-            主动询问用户：
-            - "这个功能要不要加 AI 一键优化？"
-            - "这里让用户手动填，还是让 AI 智能推荐？"
-            根据用户需求识别需要的 AI 能力类型（文本生成、图像生成、图像识别等）
-
-        第四步：技术复杂度评估
-            **先上网搜索**：上网搜索相关技术方案，确保建议是最新的
-            根据 [技术需求引导] 策略，通过业务问题判断技术复杂度
-            如果用户想要的功能会大幅增加复杂度，先劝退或建议分期
-            确保用户理解技术选择的影响
-
-        第五步：充足度判断
-            对照 [信息充足度判断]
-            「必须满足」都达成 → 提议生成
-            未达成 → 继续问，不惯着
-
-    [文档生成阶段]
-        目的：输出可用的 Product Spec 文件
-
-        第一步：整理
-            将对话内容按输出模板结构分类
-
-        第二步：填充
-            加载 templates/product-spec-template.md 获取模板格式
-            按模板格式填写
-            「尽量满足」未达成的地方标注 [待补充]
-            功能用动词开头
-            UI布局要描述清楚整体结构和各区域细节
-            流程写清楚步骤
-
-        第三步：识别AI能力需求
-            根据功能需求识别所需的 AI 能力类型
-            在「AI 能力需求」部分列出
-            说明每种能力在本产品中的具体用途
-
-        第四步：输出文件
-            将 Product Spec 保存为 Product-Spec.md
-
-[工作流程（迭代模式）]
-    **触发条件**：用户在开发过程中提出新功能、修改需求或迭代想法
-    
-    **核心原则**：无缝衔接，不打断用户工作流。不需要开场白，直接接住用户的需求往下问。
-
-    [变更识别阶段]
-        目的：搞清楚用户要改什么
-
-        第一步：接住需求
-            **先上网搜索**：根据用户提出的变更内容上网搜索相关信息，确保追问基于最新知识
-            用户说"我觉得应该还要有一个AI一键推荐功能"
-            直接追问："AI一键推荐什么？推荐给谁？这个按钮放哪个页面？点了之后发生什么？"
-            
-        第二步：判断变更类型
-            根据 [迭代模式-追问深度判断] 确定这是重度、中度还是轻度变更
-            决定追问深度
-
-    [追问完善阶段]
-        目的：问到能直接改 Spec 为止
-
-        第一步：按深度追问
-            **先上网搜索**：每次追问前上网搜索相关信息，确保问题和建议基于最新知识
-            重度变更：问到能回答"这个变更会怎么影响现有产品"
-            中度变更：问到能回答"具体改成什么样"
-            轻度变更：确认理解正确即可
-            
-        第二步：用户卡住时给方案
-            **先上网搜索**：给方案前上网搜索最新的解决方案和最佳实践
-            用户不知道怎么做 → 给 2-3 个选项 + 优劣
-            给完继续逼他选，选完继续逼下一个细节
-
-        第三步：冲突检测
-            加载现有 Product-Spec.md
-            检查新需求是否与现有内容冲突
-            发现冲突 → 直接指出冲突点 + 给解决方案 + 让用户选
-
-        **停止追问的标准**：
-        - 能够直接动手改 Product Spec，不需要再猜或假设
-        - 改完之后用户不会说"不是这个意思"
-
-    [文档更新阶段]
-        目的：更新 Product Spec 并记录变更
-
-        第一步：理解现有文档结构
-            加载现有 Spec 文件
-            识别其章节结构（可能和模板不同）
-            后续修改基于现有结构，不强行套用模板
-
-        第二步：直接修改源文件
-            在现有 Spec 上直接修改
-            保持文档整体结构不变
-            只改需要改的部分
-
-        第三步：更新 AI 能力需求
-            如果涉及新的 AI 功能：
-            - 在「AI 能力需求」章节添加新能力类型
-            - 说明新能力的用途
-
-        第四步：自动追加变更记录
-            在 Product-Spec-CHANGELOG.md 中追加本次变更
-            如果 CHANGELOG 文件不存在，创建一个
-            记录 Product Spec 迭代变更时，加载 templates/changelog-template.md 获取完整的变更记录格式和示例
-            根据对话内容自动生成变更描述
-
-    [迭代模式-追问深度判断]
-        **变更类型判断逻辑**（按顺序检查）：
-        1. 涉及新 AI 能力？→ 重度
-        2. 涉及用户核心路径变更？→ 重度
-        3. 涉及布局结构（几栏、区域划分）？→ 重度
-        4. 新增主要功能模块？→ 重度
-        5. 涉及新功能但不改核心流程？→ 中度
-        6. 涉及现有功能的逻辑调整？→ 中度
-        7. 局部布局调整？→ 中度
-        8. 只是改文字、选项、样式？→ 轻度
-
-        **各类型追问标准**：
-        
-        | 变更类型 | 停止追问的条件 | 必须问清楚的内容 |
-        |---------|---------------|----------------|
-        | **重度** | 能回答"这个变更会怎么影响现有产品"时停止 | 为什么需要？影响哪些现有功能？用户流程怎么变？需要什么新的 AI 能力？ |
-        | **中度** | 能回答"具体改成什么样"时停止 | 改哪里？改成什么？和现有的怎么配合？ |
-        | **轻度** | 确认理解正确时停止 | 改什么？改成什么？ |
-
-[初始化]
-    执行 [启动检查]

.claude/skills/product-spec-builder/templates/changelog-template.md

@@ -1,111 +0,0 @@
----
-name: changelog-template
-description: 变更记录模板。当 Product Spec 发生迭代变更时，按照此模板格式记录变更历史，输出为 Product-Spec-CHANGELOG.md 文件。
----
-
-# 变更记录模板
-
-本模板用于记录 Product Spec 的迭代变更历史。
-
----
-
-## 文件命名
-
-`Product-Spec-CHANGELOG.md`
-
----
-
-## 模板格式
-
-```markdown
-# 变更记录
-
-## [v1.2] - YYYY-MM-DD
-### 新增
-- <新增的功能或内容>
-
-### 修改
-- <修改的功能或内容>
-
-### 删除
-- <删除的功能或内容>
-
----
-
-## [v1.1] - YYYY-MM-DD
-### 新增
-- <新增的功能或内容>
-
----
-
-## [v1.0] - YYYY-MM-DD
-- 初始版本
-```
-
----
-
-## 记录规则
-
-- **版本号递增**：每次迭代 +0.1（如 v1.0 → v1.1 → v1.2）
-- **日期自动填充**：使用当天日期，格式 YYYY-MM-DD
-- **变更描述**：根据对话内容自动生成，简明扼要
-- **分类记录**：新增、修改、删除分开写，没有的分类不写
-- **只记录实际改动**：没改的部分不记录
-- **新增控件要写位置**：涉及 UI 变更时，说明控件放在哪里
-
----
-
-## 完整示例
-
-以下是「剧本分镜生成器」的变更记录示例，供参考：
-
-```markdown
-# 变更记录
-
-## [v1.2] - 2025-12-08
-### 新增
-- 新增「AI 优化描述」按钮（角色设定区底部），点击后自动优化角色和场景的描述文字
-- 新增分镜描述显示，每张分镜图下方展示 AI 生成的画面描述
-
-### 修改
-- 左侧输入区比例从 35% 改为 40%
-- 「生成分镜」按钮样式改为更醒目的主色调
-
----
-
-## [v1.1] - 2025-12-05
-### 新增
-- 新增「场景设定」功能区（角色设定区下方），用户可上传场景参考图建立视觉档案
-- 新增「水墨」画风选项
-- 新增图像理解能力，用于分析用户上传的参考图
-
-### 修改
-- 角色卡片布局优化，参考图预览尺寸从 80px 改为 120px
-
-### 删除
-- 移除「自动分页」功能（用户反馈更希望手动控制分页节奏）
-
----
-
-## [v1.0] - 2025-12-01
-- 初始版本
-```
-
----
-
-## 写作要点
-
-1. **版本号**：从 v1.0 开始，每次迭代 +0.1，重大改版可以 +1.0
-2. **日期格式**：统一用 YYYY-MM-DD，方便排序和查找
-3. **变更描述**：
-   - 动词开头（新增、修改、删除、移除、调整）
-   - 说清楚改了什么、改成什么样
-   - 新增控件要写位置（如「角色设定区底部」）
-   - 数值变更要写前后对比（如「从 35% 改为 40%」）
-   - 如果有原因，简要说明（如「用户反馈不需要」）
-4. **分类原则**：
-   - 新增：之前没有的功能、控件、能力
-   - 修改：改变了现有内容的行为、样式、参数
-   - 删除：移除了之前有的功能
-5. **颗粒度**：一条记录对应一个独立的变更点，不要把多个改动混在一起
-6. **AI 能力变更**：如果新增或移除了 AI 能力，必须单独记录

.claude/skills/product-spec-builder/templates/product-spec-template.md

@@ -1,197 +0,0 @@
----
-name: product-spec-template
-description: Product Spec 输出模板。当需要生成产品需求文档时，按照此模板的结构和格式填充内容，输出为 Product-Spec.md 文件。
----
-
-# Product Spec 输出模板
-
-本模板用于生成结构完整的 Product Spec 文档。生成时按照此结构填充内容。
-
----
-
-## 模板结构
-
-**文件命名**：Product-Spec.md
-
----
-
-## 产品概述
-<一段话说清楚：>
-- 这是什么产品
-- 解决什么问题
-- **目标用户是谁**（具体描述，不要只说「用户」）
-- 核心价值是什么
-
-## 应用场景
-<列举 3-5 个具体场景：谁、在什么情况下、怎么用、解决什么问题>
-
-## 功能需求
-<按「核心功能」和「辅助功能」分类，每条功能说明：用户做什么 → 系统做什么 → 得到什么>
-
-## UI 布局
-<描述整体布局结构和各区域的详细设计，需要包含：>
-- 整体是什么布局（几栏、比例、固定元素等）
-- 每个区域放什么内容
-- 控件的具体规范（位置、尺寸、样式等）
-
-## 用户使用流程
-<分步骤描述用户如何使用产品，可以有多条路径（如快速上手、进阶使用）>
-
-## AI 能力需求
-
-| 能力类型 | 用途说明 | 应用位置 |
-|---------|---------|---------|
-| <能力类型> | <做什么> | <在哪个环节触发> |
-
-## 技术说明（可选）
-<如果涉及以下内容，需要说明：>
-- 数据存储：是否需要登录？数据存在哪里？
-- 外部依赖：需要调用什么服务？有什么限制？
-- 部署方式：纯前端？需要服务器？
-
-## 补充说明
-<如有需要，用表格说明选项、状态、逻辑等>
-
----
-
-## 完整示例
-
-以下是一个「剧本分镜生成器」的 Product Spec 示例，供参考：
-
-```markdown
-## 产品概述
-
-这是一个帮助漫画作者、短视频创作者、动画团队将剧本快速转化为分镜图的工具。
-
-**目标用户**：有剧本但缺乏绘画能力、或者想快速出分镜草稿的创作者。他们可能是独立漫画作者、短视频博主、动画工作室的前期策划人员，共同的痛点是「脑子里有画面，但画不出来或画太慢」。
-
-**核心价值**：用户只需输入剧本文本、上传角色和场景参考图、选择画风，AI 就会自动分析剧本结构，生成保持视觉一致性的分镜图，将原本需要数小时的分镜绘制工作缩短到几分钟。
-
-## 应用场景
-
-- **漫画创作**：独立漫画作者小王有一个 20 页的剧本，需要先出分镜草稿再精修。他把剧本贴进来，上传主角的参考图，10 分钟就拿到了全部分镜草稿，可以直接在这个基础上精修。
-
-- **短视频策划**：短视频博主小李要拍一个 3 分钟的剧情短片，需要给摄影师看分镜。她把脚本输入，选择「写实」风格，生成的分镜图直接可以当拍摄参考。
-
-- **动画前期**：动画工作室要向客户提案，需要快速出一版分镜来展示剧本节奏。策划人员用这个工具 30 分钟出了 50 张分镜图，当天就能开提案会。
-
-- **小说可视化**：网文作者想给自己的小说做宣传图，把关键场景描述输入，生成的分镜图可以直接用于社交媒体宣传。
-
-- **教学演示**：小学语文老师想把一篇课文变成连环画给学生看，把课文内容输入，选择「动漫」风格，生成的图片可以直接做成 PPT。
-
-## 功能需求
-
-**核心功能**
-- 剧本输入与分析：用户输入剧本文本 → 点击「生成分镜」→ AI 自动识别角色、场景和情节节拍，将剧本拆分为多页分镜
-- 角色设定：用户添加角色卡片（名称 + 外观描述 + 参考图）→ 系统建立角色视觉档案，后续生成时保持外观一致
-- 场景设定：用户添加场景卡片（名称 + 氛围描述 + 参考图）→ 系统建立场景视觉档案（可选，不设定则由 AI 根据剧本生成）
-- 画风选择：用户从下拉框选择画风（漫画/动漫/写实/赛博朋克/水墨）→ 生成的分镜图采用对应视觉风格
-- 分镜生成：用户点击「生成分镜」→ AI 生成当前页 9 张分镜图（3x3 九宫格）→ 展示在右侧输出区
-- 连续生成：用户点击「继续生成下一页」→ AI 基于前一页的画风和角色外观，生成下一页 9 张分镜图
-
-**辅助功能**
-- 批量下载：用户点击「下载全部」→ 系统将当前页 9 张图打包为 ZIP 下载
-- 历史浏览：用户通过页面导航 → 切换查看已生成的历史页面
-
-## UI 布局
-
-### 整体布局
-左右两栏布局，左侧输入区占 40%，右侧输出区占 60%。
-
-### 左侧 - 输入区
-- 顶部：项目名称输入框
-- 剧本输入：多行文本框，placeholder「请输入剧本内容...」
-- 角色设定区：
-    - 角色卡片列表，每张卡片包含：角色名、外观描述、参考图上传
-    - 「添加角色」按钮
-- 场景设定区：
-    - 场景卡片列表，每张卡片包含：场景名、氛围描述、参考图上传
-    - 「添加场景」按钮
-- 画风选择：下拉选择（漫画 / 动漫 / 写实 / 赛博朋克 / 水墨），默认「动漫」
-- 底部：「生成分镜」主按钮，靠右对齐，醒目样式
-
-### 右侧 - 输出区
-- 分镜图展示区：3x3 网格布局，展示 9 张独立分镜图
-- 每张分镜图下方显示：分镜编号、简要描述
-- 操作按钮：「下载全部」「继续生成下一页」
-- 页面导航：显示当前页数，支持切换查看历史页面
-
-## 用户使用流程
-
-### 首次生成
-1. 输入剧本内容
-2. 添加角色：填写名称、外观描述，上传参考图
-3. 添加场景：填写名称、氛围描述，上传参考图（可选）
-4. 选择画风
-5. 点击「生成分镜」
-6. 在右侧查看生成的 9 张分镜图
-7. 点击「下载全部」保存
-
-### 连续生成
-1. 完成首次生成后
-2. 点击「继续生成下一页」
-3. AI 基于前一页的画风和角色外观，生成下一页 9 张分镜图
-4. 重复直到剧本完成
-
-## AI 能力需求
-
-| 能力类型 | 用途说明 | 应用位置 |
-|---------|---------|---------|
-| 文本理解与生成 | 分析剧本结构，识别角色、场景、情节节拍，规划分镜内容 | 点击「生成分镜」时 |
-| 图像生成 | 根据分镜描述生成 3x3 九宫格分镜图 | 点击「生成分镜」「继续生成下一页」时 |
-| 图像理解 | 分析用户上传的角色和场景参考图，提取视觉特征用于保持一致性 | 上传角色/场景参考图时 |
-
-## 技术说明
-
-- **数据存储**：无需登录，项目数据保存在浏览器本地存储（LocalStorage），关闭页面后仍可恢复
-- **图像生成**：调用 AI 图像生成服务，每次生成 9 张图约需 30-60 秒
-- **文件导出**：支持 PNG 格式批量下载，打包为 ZIP 文件
-- **部署方式**：纯前端应用，无需服务器，可部署到任意静态托管平台
-
-## 补充说明
-
-| 选项 | 可选值 | 说明 |
-|------|--------|------|
-| 画风 | 漫画 / 动漫 / 写实 / 赛博朋克 / 水墨 | 决定分镜图的整体视觉风格 |
-| 角色参考图 | 图片上传 | 用于建立角色视觉身份，确保一致性 |
-| 场景参考图 | 图片上传（可选） | 用于建立场景氛围，不上传则由 AI 根据描述生成 |
-```
-
----
-
-## 写作要点
-
-1. **产品概述**：
-   - 一句话说清楚是什么
-   - **必须明确写出目标用户**：是谁、有什么特点、什么痛点
-   - 核心价值：用了这个产品能得到什么
-   
-2. **应用场景**：
-   - 具体的人 + 具体的情况 + 具体的用法 + 解决什么问题
-   - 场景要有画面感，让人一看就懂
-   - 放在功能需求之前，帮助理解产品价值
-
-3. **功能需求**：
-   - 分「核心功能」和「辅助功能」
-   - 每条格式：用户做什么 → 系统做什么 → 得到什么
-   - 写清楚触发方式（点击什么按钮）
-
-4. **UI 布局**：
-   - 先写整体布局（几栏、比例）
-   - 再逐个区域描述内容
-   - 控件要具体：下拉框写出所有选项和默认值，按钮写明位置和样式
-
-5. **用户流程**：分步骤，可以有多条路径
-
-6. **AI 能力需求**：
-   - 列出需要的 AI 能力类型
-   - 说明具体用途
-   - **写清楚在哪个环节触发**，方便开发理解调用时机
-
-7. **技术说明**（可选）：
-   - 数据存储方式
-   - 外部服务依赖
-   - 部署方式
-   - 只在有技术约束时写，没有就不写
-
-8. **补充说明**：用表格，适合解释选项、状态、逻辑

.claude/skills/project-guidelines-example/SKILL.md

@@ -1,345 +0,0 @@
-# Project Guidelines Skill (Example)
-
-This is an example of a project-specific skill. Use this as a template for your own projects.
-
-Based on a real production application: [Zenith](https://zenith.chat) - AI-powered customer discovery platform.
-
----
-
-## When to Use
-
-Reference this skill when working on the specific project it's designed for. Project skills contain:
-- Architecture overview
-- File structure
-- Code patterns
-- Testing requirements
-- Deployment workflow
-
----
-
-## Architecture Overview
-
-**Tech Stack:**
-- **Frontend**: Next.js 15 (App Router), TypeScript, React
-- **Backend**: FastAPI (Python), Pydantic models
-- **Database**: Supabase (PostgreSQL)
-- **AI**: Claude API with tool calling and structured output
-- **Deployment**: Google Cloud Run
-- **Testing**: Playwright (E2E), pytest (backend), React Testing Library
-
-**Services:**
-```
-┌─────────────────────────────────────────────────────────────┐
-│                         Frontend                            │
-│  Next.js 15 + TypeScript + TailwindCSS                     │
-│  Deployed: Vercel / Cloud Run                              │
-└─────────────────────────────────────────────────────────────┘
-                              │
-                              ▼
-┌─────────────────────────────────────────────────────────────┐
-│                         Backend                             │
-│  FastAPI + Python 3.11 + Pydantic                          │
-│  Deployed: Cloud Run                                       │
-└─────────────────────────────────────────────────────────────┘
-                              │
-              ┌───────────────┼───────────────┐
-              ▼               ▼               ▼
-        ┌──────────┐   ┌──────────┐   ┌──────────┐
-        │ Supabase │   │  Claude  │   │  Redis   │
-        │ Database │   │   API    │   │  Cache   │
-        └──────────┘   └──────────┘   └──────────┘
-```
-
----
-
-## File Structure
-
-```
-project/
-├── frontend/
-│   └── src/
-│       ├── app/              # Next.js app router pages
-│       │   ├── api/          # API routes
-│       │   ├── (auth)/       # Auth-protected routes
-│       │   └── workspace/    # Main app workspace
-│       ├── components/       # React components
-│       │   ├── ui/           # Base UI components
-│       │   ├── forms/        # Form components
-│       │   └── layouts/      # Layout components
-│       ├── hooks/            # Custom React hooks
-│       ├── lib/              # Utilities
-│       ├── types/            # TypeScript definitions
-│       └── config/           # Configuration
-│
-├── backend/
-│   ├── routers/              # FastAPI route handlers
-│   ├── models.py             # Pydantic models
-│   ├── main.py               # FastAPI app entry
-│   ├── auth_system.py        # Authentication
-│   ├── database.py           # Database operations
-│   ├── services/             # Business logic
-│   └── tests/                # pytest tests
-│
-├── deploy/                   # Deployment configs
-├── docs/                     # Documentation
-└── scripts/                  # Utility scripts
-```
-
----
-
-## Code Patterns
-
-### API Response Format (FastAPI)
-
-```python
-from pydantic import BaseModel
-from typing import Generic, TypeVar, Optional
-
-T = TypeVar('T')
-
-class ApiResponse(BaseModel, Generic[T]):
-    success: bool
-    data: Optional[T] = None
-    error: Optional[str] = None
-
-    @classmethod
-    def ok(cls, data: T) -> "ApiResponse[T]":
-        return cls(success=True, data=data)
-
-    @classmethod
-    def fail(cls, error: str) -> "ApiResponse[T]":
-        return cls(success=False, error=error)
-```
-
-### Frontend API Calls (TypeScript)
-
-```typescript
-interface ApiResponse<T> {
-  success: boolean
-  data?: T
-  error?: string
-}
-
-async function fetchApi<T>(
-  endpoint: string,
-  options?: RequestInit
-): Promise<ApiResponse<T>> {
-  try {
-    const response = await fetch(`/api${endpoint}`, {
-      ...options,
-      headers: {
-        'Content-Type': 'application/json',
-        ...options?.headers,
-      },
-    })
-
-    if (!response.ok) {
-      return { success: false, error: `HTTP ${response.status}` }
-    }
-
-    return await response.json()
-  } catch (error) {
-    return { success: false, error: String(error) }
-  }
-}
-```
-
-### Claude AI Integration (Structured Output)
-
-```python
-from anthropic import Anthropic
-from pydantic import BaseModel
-
-class AnalysisResult(BaseModel):
-    summary: str
-    key_points: list[str]
-    confidence: float
-
-async def analyze_with_claude(content: str) -> AnalysisResult:
-    client = Anthropic()
-
-    response = client.messages.create(
-        model="claude-sonnet-4-5-20250514",
-        max_tokens=1024,
-        messages=[{"role": "user", "content": content}],
-        tools=[{
-            "name": "provide_analysis",
-            "description": "Provide structured analysis",
-            "input_schema": AnalysisResult.model_json_schema()
-        }],
-        tool_choice={"type": "tool", "name": "provide_analysis"}
-    )
-
-    # Extract tool use result
-    tool_use = next(
-        block for block in response.content
-        if block.type == "tool_use"
-    )
-
-    return AnalysisResult(**tool_use.input)
-```
-
-### Custom Hooks (React)
-
-```typescript
-import { useState, useCallback } from 'react'
-
-interface UseApiState<T> {
-  data: T | null
-  loading: boolean
-  error: string | null
-}
-
-export function useApi<T>(
-  fetchFn: () => Promise<ApiResponse<T>>
-) {
-  const [state, setState] = useState<UseApiState<T>>({
-    data: null,
-    loading: false,
-    error: null,
-  })
-
-  const execute = useCallback(async () => {
-    setState(prev => ({ ...prev, loading: true, error: null }))
-
-    const result = await fetchFn()
-
-    if (result.success) {
-      setState({ data: result.data!, loading: false, error: null })
-    } else {
-      setState({ data: null, loading: false, error: result.error! })
-    }
-  }, [fetchFn])
-
-  return { ...state, execute }
-}
-```
-
----
-
-## Testing Requirements
-
-### Backend (pytest)
-
-```bash
-# Run all tests
-poetry run pytest tests/
-
-# Run with coverage
-poetry run pytest tests/ --cov=. --cov-report=html
-
-# Run specific test file
-poetry run pytest tests/test_auth.py -v
-```
-
-**Test structure:**
-```python
-import pytest
-from httpx import AsyncClient
-from main import app
-
-@pytest.fixture
-async def client():
-    async with AsyncClient(app=app, base_url="http://test") as ac:
-        yield ac
-
-@pytest.mark.asyncio
-async def test_health_check(client: AsyncClient):
-    response = await client.get("/health")
-    assert response.status_code == 200
-    assert response.json()["status"] == "healthy"
-```
-
-### Frontend (React Testing Library)
-
-```bash
-# Run tests
-npm run test
-
-# Run with coverage
-npm run test -- --coverage
-
-# Run E2E tests
-npm run test:e2e
-```
-
-**Test structure:**
-```typescript
-import { render, screen, fireEvent } from '@testing-library/react'
-import { WorkspacePanel } from './WorkspacePanel'
-
-describe('WorkspacePanel', () => {
-  it('renders workspace correctly', () => {
-    render(<WorkspacePanel />)
-    expect(screen.getByRole('main')).toBeInTheDocument()
-  })
-
-  it('handles session creation', async () => {
-    render(<WorkspacePanel />)
-    fireEvent.click(screen.getByText('New Session'))
-    expect(await screen.findByText('Session created')).toBeInTheDocument()
-  })
-})
-```
-
----
-
-## Deployment Workflow
-
-### Pre-Deployment Checklist
-
-- [ ] All tests passing locally
-- [ ] `npm run build` succeeds (frontend)
-- [ ] `poetry run pytest` passes (backend)
-- [ ] No hardcoded secrets
-- [ ] Environment variables documented
-- [ ] Database migrations ready
-
-### Deployment Commands
-
-```bash
-# Build and deploy frontend
-cd frontend && npm run build
-gcloud run deploy frontend --source .
-
-# Build and deploy backend
-cd backend
-gcloud run deploy backend --source .
-```
-
-### Environment Variables
-
-```bash
-# Frontend (.env.local)
-NEXT_PUBLIC_API_URL=https://api.example.com
-NEXT_PUBLIC_SUPABASE_URL=https://xxx.supabase.co
-NEXT_PUBLIC_SUPABASE_ANON_KEY=eyJ...
-
-# Backend (.env)
-DATABASE_URL=postgresql://...
-ANTHROPIC_API_KEY=sk-ant-...
-SUPABASE_URL=https://xxx.supabase.co
-SUPABASE_KEY=eyJ...
-```
-
----
-
-## Critical Rules
-
-1. **No emojis** in code, comments, or documentation
-2. **Immutability** - never mutate objects or arrays
-3. **TDD** - write tests before implementation
-4. **80% coverage** minimum
-5. **Many small files** - 200-400 lines typical, 800 max
-6. **No console.log** in production code
-7. **Proper error handling** with try/catch
-8. **Input validation** with Pydantic/Zod
-
----
-
-## Related Skills
-
-- `coding-standards.md` - General coding best practices
-- `backend-patterns.md` - API and database patterns
-- `frontend-patterns.md` - React and Next.js patterns
-- `tdd-workflow/` - Test-driven development methodology

.claude/skills/security-review/SKILL.md

@@ -1,568 +0,0 @@
----
-name: security-review
-description: Use this skill when adding authentication, handling user input, working with secrets, creating API endpoints, or implementing payment/sensitive features. Provides comprehensive security checklist and patterns.
----
-
-# Security Review Skill
-
-Security best practices for Python/FastAPI applications handling sensitive invoice data.
-
-## When to Activate
-
-- Implementing authentication or authorization
-- Handling user input or file uploads
-- Creating new API endpoints
-- Working with secrets or credentials
-- Processing sensitive invoice data
-- Integrating third-party APIs
-- Database operations with user data
-
-## Security Checklist
-
-### 1. Secrets Management
-
-#### NEVER Do This
-```python
-# Hardcoded secrets - CRITICAL VULNERABILITY
-api_key = "sk-proj-xxxxx"
-db_password = "password123"
-```
-
-#### ALWAYS Do This
-```python
-import os
-from pydantic_settings import BaseSettings
-
-class Settings(BaseSettings):
-    db_password: str
-    api_key: str
-    model_path: str = "runs/train/invoice_fields/weights/best.pt"
-
-    class Config:
-        env_file = ".env"
-
-settings = Settings()
-
-# Verify secrets exist
-if not settings.db_password:
-    raise RuntimeError("DB_PASSWORD not configured")
-```
-
-#### Verification Steps
-- [ ] No hardcoded API keys, tokens, or passwords
-- [ ] All secrets in environment variables
-- [ ] `.env` in .gitignore
-- [ ] No secrets in git history
-- [ ] `.env.example` with placeholder values
-
-### 2. Input Validation
-
-#### Always Validate User Input
-```python
-from pydantic import BaseModel, Field, field_validator
-from fastapi import HTTPException
-import re
-
-class InvoiceRequest(BaseModel):
-    invoice_number: str = Field(..., min_length=1, max_length=50)
-    amount: float = Field(..., gt=0, le=1_000_000)
-    bankgiro: str | None = None
-
-    @field_validator("invoice_number")
-    @classmethod
-    def validate_invoice_number(cls, v: str) -> str:
-        # Whitelist validation - only allow safe characters
-        if not re.match(r"^[A-Za-z0-9\-_]+$", v):
-            raise ValueError("Invalid invoice number format")
-        return v
-
-    @field_validator("bankgiro")
-    @classmethod
-    def validate_bankgiro(cls, v: str | None) -> str | None:
-        if v is None:
-            return None
-        cleaned = re.sub(r"[^0-9]", "", v)
-        if not (7 <= len(cleaned) <= 8):
-            raise ValueError("Bankgiro must be 7-8 digits")
-        return cleaned
-```
-
-#### File Upload Validation
-```python
-from fastapi import UploadFile, HTTPException
-from pathlib import Path
-
-ALLOWED_EXTENSIONS = {".pdf"}
-MAX_FILE_SIZE = 10 * 1024 * 1024  # 10MB
-
-async def validate_pdf_upload(file: UploadFile) -> bytes:
-    """Validate PDF upload with security checks."""
-    # Extension check
-    ext = Path(file.filename or "").suffix.lower()
-    if ext not in ALLOWED_EXTENSIONS:
-        raise HTTPException(400, f"Only PDF files allowed, got {ext}")
-
-    # Read content
-    content = await file.read()
-
-    # Size check
-    if len(content) > MAX_FILE_SIZE:
-        raise HTTPException(400, f"File too large (max {MAX_FILE_SIZE // 1024 // 1024}MB)")
-
-    # Magic bytes check (PDF signature)
-    if not content.startswith(b"%PDF"):
-        raise HTTPException(400, "Invalid PDF file format")
-
-    return content
-```
-
-#### Verification Steps
-- [ ] All user inputs validated with Pydantic
-- [ ] File uploads restricted (size, type, extension, magic bytes)
-- [ ] No direct use of user input in queries
-- [ ] Whitelist validation (not blacklist)
-- [ ] Error messages don't leak sensitive info
-
-### 3. SQL Injection Prevention
-
-#### NEVER Concatenate SQL
-```python
-# DANGEROUS - SQL Injection vulnerability
-query = f"SELECT * FROM documents WHERE id = '{user_input}'"
-cur.execute(query)
-```
-
-#### ALWAYS Use Parameterized Queries
-```python
-import psycopg2
-
-# Safe - parameterized query with %s placeholders
-cur.execute(
-    "SELECT * FROM documents WHERE id = %s AND status = %s",
-    (document_id, status)
-)
-
-# Safe - named parameters
-cur.execute(
-    "SELECT * FROM documents WHERE id = %(id)s",
-    {"id": document_id}
-)
-
-# Safe - psycopg2.sql for dynamic identifiers
-from psycopg2 import sql
-
-cur.execute(
-    sql.SQL("SELECT {} FROM {} WHERE id = %s").format(
-        sql.Identifier("invoice_number"),
-        sql.Identifier("documents")
-    ),
-    (document_id,)
-)
-```
-
-#### Verification Steps
-- [ ] All database queries use parameterized queries (%s or %(name)s)
-- [ ] No string concatenation or f-strings in SQL
-- [ ] psycopg2.sql module used for dynamic identifiers
-- [ ] No user input in table/column names
-
-### 4. Path Traversal Prevention
-
-#### NEVER Trust User Paths
-```python
-# DANGEROUS - Path traversal vulnerability
-filename = request.query_params.get("file")
-with open(f"/data/{filename}", "r") as f:  # Attacker: ../../../etc/passwd
-    return f.read()
-```
-
-#### ALWAYS Validate Paths
-```python
-from pathlib import Path
-
-ALLOWED_DIR = Path("/data/uploads").resolve()
-
-def get_safe_path(filename: str) -> Path:
-    """Get safe file path, preventing path traversal."""
-    # Remove any path components
-    safe_name = Path(filename).name
-
-    # Validate filename characters
-    if not re.match(r"^[A-Za-z0-9_\-\.]+$", safe_name):
-        raise HTTPException(400, "Invalid filename")
-
-    # Resolve and verify within allowed directory
-    full_path = (ALLOWED_DIR / safe_name).resolve()
-
-    if not full_path.is_relative_to(ALLOWED_DIR):
-        raise HTTPException(400, "Invalid file path")
-
-    return full_path
-```
-
-#### Verification Steps
-- [ ] User-provided filenames sanitized
-- [ ] Paths resolved and validated against allowed directory
-- [ ] No direct concatenation of user input into paths
-- [ ] Whitelist characters in filenames
-
-### 5. Authentication & Authorization
-
-#### API Key Validation
-```python
-from fastapi import Depends, HTTPException, Security
-from fastapi.security import APIKeyHeader
-
-api_key_header = APIKeyHeader(name="X-API-Key", auto_error=False)
-
-async def verify_api_key(api_key: str = Security(api_key_header)) -> str:
-    if not api_key:
-        raise HTTPException(401, "API key required")
-
-    # Constant-time comparison to prevent timing attacks
-    import hmac
-    if not hmac.compare_digest(api_key, settings.api_key):
-        raise HTTPException(403, "Invalid API key")
-
-    return api_key
-
-@router.post("/infer")
-async def infer(
-    file: UploadFile,
-    api_key: str = Depends(verify_api_key)
-):
-    ...
-```
-
-#### Role-Based Access Control
-```python
-from enum import Enum
-
-class UserRole(str, Enum):
-    USER = "user"
-    ADMIN = "admin"
-
-def require_role(required_role: UserRole):
-    async def role_checker(current_user: User = Depends(get_current_user)):
-        if current_user.role != required_role:
-            raise HTTPException(403, "Insufficient permissions")
-        return current_user
-    return role_checker
-
-@router.delete("/documents/{doc_id}")
-async def delete_document(
-    doc_id: str,
-    user: User = Depends(require_role(UserRole.ADMIN))
-):
-    ...
-```
-
-#### Verification Steps
-- [ ] API keys validated with constant-time comparison
-- [ ] Authorization checks before sensitive operations
-- [ ] Role-based access control implemented
-- [ ] Session/token validation on protected routes
-
-### 6. Rate Limiting
-
-#### Rate Limiter Implementation
-```python
-from time import time
-from collections import defaultdict
-from fastapi import Request, HTTPException
-
-class RateLimiter:
-    def __init__(self):
-        self.requests: dict[str, list[float]] = defaultdict(list)
-
-    def check_limit(
-        self,
-        identifier: str,
-        max_requests: int,
-        window_seconds: int
-    ) -> bool:
-        now = time()
-        # Clean old requests
-        self.requests[identifier] = [
-            t for t in self.requests[identifier]
-            if now - t < window_seconds
-        ]
-        # Check limit
-        if len(self.requests[identifier]) >= max_requests:
-            return False
-        self.requests[identifier].append(now)
-        return True
-
-limiter = RateLimiter()
-
-@app.middleware("http")
-async def rate_limit_middleware(request: Request, call_next):
-    client_ip = request.client.host if request.client else "unknown"
-
-    # 100 requests per minute for general endpoints
-    if not limiter.check_limit(client_ip, max_requests=100, window_seconds=60):
-        raise HTTPException(429, "Rate limit exceeded. Try again later.")
-
-    return await call_next(request)
-```
-
-#### Stricter Limits for Expensive Operations
-```python
-# Inference endpoint: 10 requests per minute
-async def check_inference_rate_limit(request: Request):
-    client_ip = request.client.host if request.client else "unknown"
-    if not limiter.check_limit(f"infer:{client_ip}", max_requests=10, window_seconds=60):
-        raise HTTPException(429, "Inference rate limit exceeded")
-
-@router.post("/infer")
-async def infer(
-    file: UploadFile,
-    _: None = Depends(check_inference_rate_limit)
-):
-    ...
-```
-
-#### Verification Steps
-- [ ] Rate limiting on all API endpoints
-- [ ] Stricter limits on expensive operations (inference, OCR)
-- [ ] IP-based rate limiting
-- [ ] Clear error messages for rate-limited requests
-
-### 7. Sensitive Data Exposure
-
-#### Logging
-```python
-import logging
-
-logger = logging.getLogger(__name__)
-
-# WRONG: Logging sensitive data
-logger.info(f"Processing invoice: {invoice_data}")  # May contain sensitive info
-logger.error(f"DB error with password: {db_password}")
-
-# CORRECT: Redact sensitive data
-logger.info(f"Processing invoice: id={doc_id}")
-logger.error(f"DB connection failed to {db_host}:{db_port}")
-
-# CORRECT: Structured logging with safe fields only
-logger.info(
-    "Invoice processed",
-    extra={
-        "document_id": doc_id,
-        "field_count": len(fields),
-        "processing_time_ms": elapsed_ms
-    }
-)
-```
-
-#### Error Messages
-```python
-# WRONG: Exposing internal details
-@app.exception_handler(Exception)
-async def error_handler(request: Request, exc: Exception):
-    return JSONResponse(
-        status_code=500,
-        content={
-            "error": str(exc),
-            "traceback": traceback.format_exc()  # NEVER expose!
-        }
-    )
-
-# CORRECT: Generic error messages
-@app.exception_handler(Exception)
-async def error_handler(request: Request, exc: Exception):
-    logger.error(f"Unhandled error: {exc}", exc_info=True)  # Log internally
-    return JSONResponse(
-        status_code=500,
-        content={"success": False, "error": "An error occurred"}
-    )
-```
-
-#### Verification Steps
-- [ ] No passwords, tokens, or secrets in logs
-- [ ] Error messages generic for users
-- [ ] Detailed errors only in server logs
-- [ ] No stack traces exposed to users
-- [ ] Invoice data (amounts, account numbers) not logged
-
-### 8. CORS Configuration
-
-```python
-from fastapi.middleware.cors import CORSMiddleware
-
-# WRONG: Allow all origins
-app.add_middleware(
-    CORSMiddleware,
-    allow_origins=["*"],  # DANGEROUS in production
-    allow_credentials=True,
-)
-
-# CORRECT: Specific origins
-ALLOWED_ORIGINS = [
-    "http://localhost:8000",
-    "https://your-domain.com",
-]
-
-app.add_middleware(
-    CORSMiddleware,
-    allow_origins=ALLOWED_ORIGINS,
-    allow_credentials=True,
-    allow_methods=["GET", "POST"],
-    allow_headers=["*"],
-)
-```
-
-#### Verification Steps
-- [ ] CORS origins explicitly listed
-- [ ] No wildcard origins in production
-- [ ] Credentials only with specific origins
-
-### 9. Temporary File Security
-
-```python
-import tempfile
-from pathlib import Path
-from contextlib import contextmanager
-
-@contextmanager
-def secure_temp_file(suffix: str = ".pdf"):
-    """Create secure temporary file that is always cleaned up."""
-    tmp_path = None
-    try:
-        with tempfile.NamedTemporaryFile(
-            suffix=suffix,
-            delete=False,
-            dir="/tmp/invoice-master"  # Dedicated temp directory
-        ) as tmp:
-            tmp_path = Path(tmp.name)
-            yield tmp_path
-    finally:
-        if tmp_path and tmp_path.exists():
-            tmp_path.unlink()
-
-# Usage
-async def process_upload(file: UploadFile):
-    with secure_temp_file(".pdf") as tmp_path:
-        content = await validate_pdf_upload(file)
-        tmp_path.write_bytes(content)
-        result = pipeline.process(tmp_path)
-    # File automatically cleaned up
-    return result
-```
-
-#### Verification Steps
-- [ ] Temporary files always cleaned up (use context managers)
-- [ ] Temp directory has restricted permissions
-- [ ] No leftover files after processing errors
-
-### 10. Dependency Security
-
-#### Regular Updates
-```bash
-# Check for vulnerabilities
-pip-audit
-
-# Update dependencies
-pip install --upgrade -r requirements.txt
-
-# Check for outdated packages
-pip list --outdated
-```
-
-#### Lock Files
-```bash
-# Create requirements lock file
-pip freeze > requirements.lock
-
-# Install from lock file for reproducible builds
-pip install -r requirements.lock
-```
-
-#### Verification Steps
-- [ ] Dependencies up to date
-- [ ] No known vulnerabilities (pip-audit clean)
-- [ ] requirements.txt pinned versions
-- [ ] Regular security updates scheduled
-
-## Security Testing
-
-### Automated Security Tests
-```python
-import pytest
-from fastapi.testclient import TestClient
-
-def test_requires_api_key(client: TestClient):
-    """Test authentication required."""
-    response = client.post("/api/v1/infer")
-    assert response.status_code == 401
-
-def test_invalid_api_key_rejected(client: TestClient):
-    """Test invalid API key rejected."""
-    response = client.post(
-        "/api/v1/infer",
-        headers={"X-API-Key": "invalid-key"}
-    )
-    assert response.status_code == 403
-
-def test_sql_injection_prevented(client: TestClient):
-    """Test SQL injection attempt rejected."""
-    response = client.get(
-        "/api/v1/documents",
-        params={"id": "'; DROP TABLE documents; --"}
-    )
-    # Should return validation error, not execute SQL
-    assert response.status_code in (400, 422)
-
-def test_path_traversal_prevented(client: TestClient):
-    """Test path traversal attempt rejected."""
-    response = client.get("/api/v1/results/../../etc/passwd")
-    assert response.status_code == 400
-
-def test_rate_limit_enforced(client: TestClient):
-    """Test rate limiting works."""
-    responses = [
-        client.post("/api/v1/infer", files={"file": b"test"})
-        for _ in range(15)
-    ]
-    rate_limited = [r for r in responses if r.status_code == 429]
-    assert len(rate_limited) > 0
-
-def test_large_file_rejected(client: TestClient):
-    """Test file size limit enforced."""
-    large_content = b"x" * (11 * 1024 * 1024)  # 11MB
-    response = client.post(
-        "/api/v1/infer",
-        files={"file": ("test.pdf", large_content)}
-    )
-    assert response.status_code == 400
-```
-
-## Pre-Deployment Security Checklist
-
-Before ANY production deployment:
-
-- [ ] **Secrets**: No hardcoded secrets, all in env vars
-- [ ] **Input Validation**: All user inputs validated with Pydantic
-- [ ] **SQL Injection**: All queries use parameterized queries
-- [ ] **Path Traversal**: File paths validated and sanitized
-- [ ] **Authentication**: API key or token validation
-- [ ] **Authorization**: Role checks in place
-- [ ] **Rate Limiting**: Enabled on all endpoints
-- [ ] **HTTPS**: Enforced in production
-- [ ] **CORS**: Properly configured (no wildcards)
-- [ ] **Error Handling**: No sensitive data in errors
-- [ ] **Logging**: No sensitive data logged
-- [ ] **File Uploads**: Validated (size, type, magic bytes)
-- [ ] **Temp Files**: Always cleaned up
-- [ ] **Dependencies**: Up to date, no vulnerabilities
-
-## Resources
-
-- [OWASP Top 10](https://owasp.org/www-project-top-ten/)
-- [FastAPI Security](https://fastapi.tiangolo.com/tutorial/security/)
-- [Bandit (Python Security Linter)](https://bandit.readthedocs.io/)
-- [pip-audit](https://pypi.org/project/pip-audit/)
-
----
-
-**Remember**: Security is not optional. One vulnerability can compromise sensitive invoice data. When in doubt, err on the side of caution.

.claude/skills/strategic-compact/SKILL.md

@@ -1,63 +0,0 @@
----
-name: strategic-compact
-description: Suggests manual context compaction at logical intervals to preserve context through task phases rather than arbitrary auto-compaction.
----
-
-# Strategic Compact Skill
-
-Suggests manual `/compact` at strategic points in your workflow rather than relying on arbitrary auto-compaction.
-
-## Why Strategic Compaction?
-
-Auto-compaction triggers at arbitrary points:
-- Often mid-task, losing important context
-- No awareness of logical task boundaries
-- Can interrupt complex multi-step operations
-
-Strategic compaction at logical boundaries:
-- **After exploration, before execution** - Compact research context, keep implementation plan
-- **After completing a milestone** - Fresh start for next phase
-- **Before major context shifts** - Clear exploration context before different task
-
-## How It Works
-
-The `suggest-compact.sh` script runs on PreToolUse (Edit/Write) and:
-
-1. **Tracks tool calls** - Counts tool invocations in session
-2. **Threshold detection** - Suggests at configurable threshold (default: 50 calls)
-3. **Periodic reminders** - Reminds every 25 calls after threshold
-
-## Hook Setup
-
-Add to your `~/.claude/settings.json`:
-
-```json
-{
-  "hooks": {
-    "PreToolUse": [{
-      "matcher": "tool == \"Edit\" || tool == \"Write\"",
-      "hooks": [{
-        "type": "command",
-        "command": "~/.claude/skills/strategic-compact/suggest-compact.sh"
-      }]
-    }]
-  }
-}
-```
-
-## Configuration
-
-Environment variables:
-- `COMPACT_THRESHOLD` - Tool calls before first suggestion (default: 50)
-
-## Best Practices
-
-1. **Compact after planning** - Once plan is finalized, compact to start fresh
-2. **Compact after debugging** - Clear error-resolution context before continuing
-3. **Don't compact mid-implementation** - Preserve context for related changes
-4. **Read the suggestion** - The hook tells you *when*, you decide *if*
-
-## Related
-
-- [The Longform Guide](https://x.com/affaanmustafa/status/2014040193557471352) - Token optimization section
-- Memory persistence hooks - For state that survives compaction

.claude/skills/strategic-compact/suggest-compact.sh

@@ -1,52 +0,0 @@
-#!/bin/bash
-# Strategic Compact Suggester
-# Runs on PreToolUse or periodically to suggest manual compaction at logical intervals
-#
-# Why manual over auto-compact:
-# - Auto-compact happens at arbitrary points, often mid-task
-# - Strategic compacting preserves context through logical phases
-# - Compact after exploration, before execution
-# - Compact after completing a milestone, before starting next
-#
-# Hook config (in ~/.claude/settings.json):
-# {
-#   "hooks": {
-#     "PreToolUse": [{
-#       "matcher": "Edit|Write",
-#       "hooks": [{
-#         "type": "command",
-#         "command": "~/.claude/skills/strategic-compact/suggest-compact.sh"
-#       }]
-#     }]
-#   }
-# }
-#
-# Criteria for suggesting compact:
-# - Session has been running for extended period
-# - Large number of tool calls made
-# - Transitioning from research/exploration to implementation
-# - Plan has been finalized
-
-# Track tool call count (increment in a temp file)
-COUNTER_FILE="/tmp/claude-tool-count-$$"
-THRESHOLD=${COMPACT_THRESHOLD:-50}
-
-# Initialize or increment counter
-if [ -f "$COUNTER_FILE" ]; then
-  count=$(cat "$COUNTER_FILE")
-  count=$((count + 1))
-  echo "$count" > "$COUNTER_FILE"
-else
-  echo "1" > "$COUNTER_FILE"
-  count=1
-fi
-
-# Suggest compact after threshold tool calls
-if [ "$count" -eq "$THRESHOLD" ]; then
-  echo "[StrategicCompact] $THRESHOLD tool calls reached - consider /compact if transitioning phases" >&2
-fi
-
-# Suggest at regular intervals after threshold
-if [ "$count" -gt "$THRESHOLD" ] && [ $((count % 25)) -eq 0 ]; then
-  echo "[StrategicCompact] $count tool calls - good checkpoint for /compact if context is stale" >&2
-fi

.claude/skills/tdd-workflow/SKILL.md

@@ -1,553 +0,0 @@
----
-name: tdd-workflow
-description: Use this skill when writing new features, fixing bugs, or refactoring code. Enforces test-driven development with 80%+ coverage including unit, integration, and E2E tests.
----
-
-# Test-Driven Development Workflow
-
-TDD principles for Python/FastAPI development with pytest.
-
-## When to Activate
-
-- Writing new features or functionality
-- Fixing bugs or issues
-- Refactoring existing code
-- Adding API endpoints
-- Creating new field extractors or normalizers
-
-## Core Principles
-
-### 1. Tests BEFORE Code
-ALWAYS write tests first, then implement code to make tests pass.
-
-### 2. Coverage Requirements
-- Minimum 80% coverage (unit + integration + E2E)
-- All edge cases covered
-- Error scenarios tested
-- Boundary conditions verified
-
-### 3. Test Types
-
-#### Unit Tests
-- Individual functions and utilities
-- Normalizers and validators
-- Parsers and extractors
-- Pure functions
-
-#### Integration Tests
-- API endpoints
-- Database operations
-- OCR + YOLO pipeline
-- Service interactions
-
-#### E2E Tests
-- Complete inference pipeline
-- PDF → Fields workflow
-- API health and inference endpoints
-
-## TDD Workflow Steps
-
-### Step 1: Write User Journeys
-```
-As a [role], I want to [action], so that [benefit]
-
-Example:
-As an invoice processor, I want to extract Bankgiro from payment_line,
-so that I can cross-validate OCR results.
-```
-
-### Step 2: Generate Test Cases
-For each user journey, create comprehensive test cases:
-
-```python
-import pytest
-
-class TestPaymentLineParser:
-    """Tests for payment_line parsing and field extraction."""
-
-    def test_parse_payment_line_extracts_bankgiro(self):
-        """Should extract Bankgiro from valid payment line."""
-        # Test implementation
-        pass
-
-    def test_parse_payment_line_handles_missing_checksum(self):
-        """Should handle payment lines without checksum."""
-        pass
-
-    def test_parse_payment_line_validates_checksum(self):
-        """Should validate checksum when present."""
-        pass
-
-    def test_parse_payment_line_returns_none_for_invalid(self):
-        """Should return None for invalid payment lines."""
-        pass
-```
-
-### Step 3: Run Tests (They Should Fail)
-```bash
-pytest tests/test_ocr/test_machine_code_parser.py -v
-# Tests should fail - we haven't implemented yet
-```
-
-### Step 4: Implement Code
-Write minimal code to make tests pass:
-
-```python
-def parse_payment_line(line: str) -> PaymentLineData | None:
-    """Parse Swedish payment line and extract fields."""
-    # Implementation guided by tests
-    pass
-```
-
-### Step 5: Run Tests Again
-```bash
-pytest tests/test_ocr/test_machine_code_parser.py -v
-# Tests should now pass
-```
-
-### Step 6: Refactor
-Improve code quality while keeping tests green:
-- Remove duplication
-- Improve naming
-- Optimize performance
-- Enhance readability
-
-### Step 7: Verify Coverage
-```bash
-pytest --cov=src --cov-report=term-missing
-# Verify 80%+ coverage achieved
-```
-
-## Testing Patterns
-
-### Unit Test Pattern (pytest)
-```python
-import pytest
-from src.normalize.bankgiro_normalizer import normalize_bankgiro
-
-class TestBankgiroNormalizer:
-    """Tests for Bankgiro normalization."""
-
-    def test_normalize_removes_hyphens(self):
-        """Should remove hyphens from Bankgiro."""
-        result = normalize_bankgiro("123-4567")
-        assert result == "1234567"
-
-    def test_normalize_removes_spaces(self):
-        """Should remove spaces from Bankgiro."""
-        result = normalize_bankgiro("123 4567")
-        assert result == "1234567"
-
-    def test_normalize_validates_length(self):
-        """Should validate Bankgiro is 7-8 digits."""
-        result = normalize_bankgiro("123456")  # 6 digits
-        assert result is None
-
-    def test_normalize_validates_checksum(self):
-        """Should validate Luhn checksum."""
-        result = normalize_bankgiro("1234568")  # Invalid checksum
-        assert result is None
-
-    @pytest.mark.parametrize("input_value,expected", [
-        ("123-4567", "1234567"),
-        ("1234567", "1234567"),
-        ("123 4567", "1234567"),
-        ("BG 123-4567", "1234567"),
-    ])
-    def test_normalize_various_formats(self, input_value, expected):
-        """Should handle various input formats."""
-        result = normalize_bankgiro(input_value)
-        assert result == expected
-```
-
-### API Integration Test Pattern
-```python
-import pytest
-from fastapi.testclient import TestClient
-from src.web.app import app
-
-@pytest.fixture
-def client():
-    return TestClient(app)
-
-class TestHealthEndpoint:
-    """Tests for /api/v1/health endpoint."""
-
-    def test_health_returns_200(self, client):
-        """Should return 200 OK."""
-        response = client.get("/api/v1/health")
-        assert response.status_code == 200
-
-    def test_health_returns_status(self, client):
-        """Should return health status."""
-        response = client.get("/api/v1/health")
-        data = response.json()
-        assert data["status"] == "healthy"
-        assert "model_loaded" in data
-
-class TestInferEndpoint:
-    """Tests for /api/v1/infer endpoint."""
-
-    def test_infer_requires_file(self, client):
-        """Should require file upload."""
-        response = client.post("/api/v1/infer")
-        assert response.status_code == 422
-
-    def test_infer_rejects_non_pdf(self, client):
-        """Should reject non-PDF files."""
-        response = client.post(
-            "/api/v1/infer",
-            files={"file": ("test.txt", b"not a pdf", "text/plain")}
-        )
-        assert response.status_code == 400
-
-    def test_infer_returns_fields(self, client, sample_invoice_pdf):
-        """Should return extracted fields."""
-        with open(sample_invoice_pdf, "rb") as f:
-            response = client.post(
-                "/api/v1/infer",
-                files={"file": ("invoice.pdf", f, "application/pdf")}
-            )
-        assert response.status_code == 200
-        data = response.json()
-        assert data["success"] is True
-        assert "fields" in data
-```
-
-### E2E Test Pattern
-```python
-import pytest
-import httpx
-from pathlib import Path
-
-@pytest.fixture(scope="module")
-def running_server():
-    """Ensure server is running for E2E tests."""
-    # Server should be started before running E2E tests
-    base_url = "http://localhost:8000"
-    yield base_url
-
-class TestInferencePipeline:
-    """E2E tests for complete inference pipeline."""
-
-    def test_health_check(self, running_server):
-        """Should pass health check."""
-        response = httpx.get(f"{running_server}/api/v1/health")
-        assert response.status_code == 200
-        data = response.json()
-        assert data["status"] == "healthy"
-        assert data["model_loaded"] is True
-
-    def test_pdf_inference_returns_fields(self, running_server):
-        """Should extract fields from PDF."""
-        pdf_path = Path("tests/fixtures/sample_invoice.pdf")
-        with open(pdf_path, "rb") as f:
-            response = httpx.post(
-                f"{running_server}/api/v1/infer",
-                files={"file": ("invoice.pdf", f, "application/pdf")}
-            )
-
-        assert response.status_code == 200
-        data = response.json()
-        assert data["success"] is True
-        assert "fields" in data
-        assert len(data["fields"]) > 0
-
-    def test_cross_validation_included(self, running_server):
-        """Should include cross-validation for invoices with payment_line."""
-        pdf_path = Path("tests/fixtures/invoice_with_payment_line.pdf")
-        with open(pdf_path, "rb") as f:
-            response = httpx.post(
-                f"{running_server}/api/v1/infer",
-                files={"file": ("invoice.pdf", f, "application/pdf")}
-            )
-
-        data = response.json()
-        if data["fields"].get("payment_line"):
-            assert "cross_validation" in data
-```
-
-## Test File Organization
-
-```
-tests/
-├── conftest.py                    # Shared fixtures
-├── fixtures/                      # Test data files
-│   ├── sample_invoice.pdf
-│   └── invoice_with_payment_line.pdf
-├── test_cli/
-│   └── test_infer.py
-├── test_pdf/
-│   ├── test_extractor.py
-│   └── test_renderer.py
-├── test_ocr/
-│   ├── test_paddle_ocr.py
-│   └── test_machine_code_parser.py
-├── test_inference/
-│   ├── test_pipeline.py
-│   ├── test_yolo_detector.py
-│   └── test_field_extractor.py
-├── test_normalize/
-│   ├── test_bankgiro_normalizer.py
-│   ├── test_date_normalizer.py
-│   └── test_amount_normalizer.py
-├── test_web/
-│   ├── test_routes.py
-│   └── test_services.py
-└── e2e/
-    └── test_inference_e2e.py
-```
-
-## Mocking External Services
-
-### Mock PaddleOCR
-```python
-import pytest
-from unittest.mock import Mock, patch
-
-@pytest.fixture
-def mock_paddle_ocr():
-    """Mock PaddleOCR for unit tests."""
-    with patch("src.ocr.paddle_ocr.PaddleOCR") as mock:
-        instance = Mock()
-        instance.ocr.return_value = [
-            [
-                [[[0, 0], [100, 0], [100, 20], [0, 20]], ("Invoice Number", 0.95)],
-                [[[0, 30], [100, 30], [100, 50], [0, 50]], ("INV-2024-001", 0.98)]
-            ]
-        ]
-        mock.return_value = instance
-        yield instance
-```
-
-### Mock YOLO Model
-```python
-@pytest.fixture
-def mock_yolo_model():
-    """Mock YOLO model for unit tests."""
-    with patch("src.inference.yolo_detector.YOLO") as mock:
-        instance = Mock()
-        # Mock detection results
-        instance.return_value = Mock(
-            boxes=Mock(
-                xyxy=[[10, 20, 100, 50]],
-                conf=[0.95],
-                cls=[0]  # invoice_number class
-            )
-        )
-        mock.return_value = instance
-        yield instance
-```
-
-### Mock Database
-```python
-@pytest.fixture
-def mock_db_connection():
-    """Mock database connection for unit tests."""
-    with patch("src.data.db.get_db_connection") as mock:
-        conn = Mock()
-        cursor = Mock()
-        cursor.fetchall.return_value = [
-            ("doc-123", "processed", {"invoice_number": "INV-001"})
-        ]
-        cursor.fetchone.return_value = ("doc-123",)
-        conn.cursor.return_value.__enter__ = Mock(return_value=cursor)
-        conn.cursor.return_value.__exit__ = Mock(return_value=False)
-        mock.return_value.__enter__ = Mock(return_value=conn)
-        mock.return_value.__exit__ = Mock(return_value=False)
-        yield conn
-```
-
-## Test Coverage Verification
-
-### Run Coverage Report
-```bash
-# Run with coverage
-pytest --cov=src --cov-report=term-missing
-
-# Generate HTML report
-pytest --cov=src --cov-report=html
-# Open htmlcov/index.html in browser
-```
-
-### Coverage Configuration (pyproject.toml)
-```toml
-[tool.coverage.run]
-source = ["src"]
-omit = ["*/__init__.py", "*/test_*.py"]
-
-[tool.coverage.report]
-fail_under = 80
-show_missing = true
-exclude_lines = [
-    "pragma: no cover",
-    "if TYPE_CHECKING:",
-    "raise NotImplementedError",
-]
-```
-
-## Common Testing Mistakes to Avoid
-
-### WRONG: Testing Implementation Details
-```python
-# Don't test internal state
-def test_parser_internal_state():
-    parser = PaymentLineParser()
-    parser._parse("...")
-    assert parser._groups == [...]  # Internal state
-```
-
-### CORRECT: Test Public Interface
-```python
-# Test what users see
-def test_parser_extracts_bankgiro():
-    result = parse_payment_line("...")
-    assert result.bankgiro == "1234567"
-```
-
-### WRONG: No Test Isolation
-```python
-# Tests depend on each other
-class TestDocuments:
-    def test_creates_document(self):
-        create_document(...)  # Creates in DB
-
-    def test_updates_document(self):
-        update_document(...)  # Depends on previous test
-```
-
-### CORRECT: Independent Tests
-```python
-# Each test sets up its own data
-class TestDocuments:
-    def test_creates_document(self, mock_db):
-        result = create_document(...)
-        assert result.id is not None
-
-    def test_updates_document(self, mock_db):
-        # Create own test data
-        doc = create_document(...)
-        result = update_document(doc.id, ...)
-        assert result.status == "updated"
-```
-
-### WRONG: Testing Too Much
-```python
-# One test doing everything
-def test_full_invoice_processing():
-    # Load PDF
-    # Extract images
-    # Run YOLO
-    # Run OCR
-    # Normalize fields
-    # Save to DB
-    # Return response
-```
-
-### CORRECT: Focused Tests
-```python
-def test_yolo_detects_invoice_number():
-    """Test only YOLO detection."""
-    result = detector.detect(image)
-    assert any(d.label == "invoice_number" for d in result)
-
-def test_ocr_extracts_text():
-    """Test only OCR extraction."""
-    result = ocr.extract(image, bbox)
-    assert result == "INV-2024-001"
-
-def test_normalizer_formats_date():
-    """Test only date normalization."""
-    result = normalize_date("2024-01-15")
-    assert result == "2024-01-15"
-```
-
-## Fixtures (conftest.py)
-
-```python
-import pytest
-from pathlib import Path
-from fastapi.testclient import TestClient
-
-@pytest.fixture
-def sample_invoice_pdf(tmp_path: Path) -> Path:
-    """Create sample invoice PDF for testing."""
-    pdf_path = tmp_path / "invoice.pdf"
-    # Copy from fixtures or create minimal PDF
-    src = Path("tests/fixtures/sample_invoice.pdf")
-    if src.exists():
-        pdf_path.write_bytes(src.read_bytes())
-    return pdf_path
-
-@pytest.fixture
-def client():
-    """FastAPI test client."""
-    from src.web.app import app
-    return TestClient(app)
-
-@pytest.fixture
-def sample_payment_line() -> str:
-    """Sample Swedish payment line for testing."""
-    return "1234567#0000000012345#230115#00012345678901234567#1"
-```
-
-## Continuous Testing
-
-### Watch Mode During Development
-```bash
-# Using pytest-watch
-ptw -- tests/test_ocr/
-# Tests run automatically on file changes
-```
-
-### Pre-Commit Hook
-```bash
-# .pre-commit-config.yaml
-repos:
-  - repo: local
-    hooks:
-      - id: pytest
-        name: pytest
-        entry: pytest --tb=short -q
-        language: system
-        pass_filenames: false
-        always_run: true
-```
-
-### CI/CD Integration (GitHub Actions)
-```yaml
-- name: Run Tests
-  run: |
-    pytest --cov=src --cov-report=xml
-
-- name: Upload Coverage
-  uses: codecov/codecov-action@v3
-  with:
-    file: coverage.xml
-```
-
-## Best Practices
-
-1. **Write Tests First** - Always TDD
-2. **One Assert Per Test** - Focus on single behavior
-3. **Descriptive Test Names** - `test_<what>_<condition>_<expected>`
-4. **Arrange-Act-Assert** - Clear test structure
-5. **Mock External Dependencies** - Isolate unit tests
-6. **Test Edge Cases** - None, empty, invalid, boundary
-7. **Test Error Paths** - Not just happy paths
-8. **Keep Tests Fast** - Unit tests < 50ms each
-9. **Clean Up After Tests** - Use fixtures with cleanup
-10. **Review Coverage Reports** - Identify gaps
-
-## Success Metrics
-
-- 80%+ code coverage achieved
-- All tests passing (green)
-- No skipped or disabled tests
-- Fast test execution (< 60s for unit tests)
-- E2E tests cover critical inference flow
-- Tests catch bugs before production
-
----
-
-**Remember**: Tests are not optional. They are the safety net that enables confident refactoring, rapid development, and production reliability.

.claude/skills/ui-prompt-generator/SKILL.md

@@ -1,139 +0,0 @@
----
-name: ui-prompt-generator
-description: 读取 Product-Spec.md 中的功能需求和 UI 布局，生成可用于 AI 绘图工具的原型图提示词。与 product-spec-builder 配套使用，帮助用户快速将需求文档转化为视觉原型。
----
-
-[角色]
-    你是一位 UI/UX 设计专家，擅长将产品需求转化为精准的视觉描述。
-    
-    你能够从结构化的产品文档中提取关键信息，并转化为 AI 绘图工具可以理解的提示词，帮助用户快速生成产品原型图。
-
-[任务]
-    读取 Product-Spec.md，提取功能需求和 UI 布局信息，补充必要的视觉参数，生成可直接用于文生图工具的原型图提示词。
-    
-    最终输出按页面拆分的提示词，用户可以直接复制到 AI 绘图工具生成原型图。
-
-[技能]
-    - **文档解析**：从 Product-Spec.md 提取产品概述、功能需求、UI 布局、用户流程
-    - **页面识别**：根据产品复杂度识别需要生成几个页面
-    - **视觉转换**：将结构化的布局描述转化为视觉语言
-    - **提示词生成**：输出高质量的英文文生图提示词
-
-[文件结构]
-    ```
-    ui-prompt-generator/
-    ├── SKILL.md                           # 主 Skill 定义（本文件）
-    └── templates/
-        └── ui-prompt-template.md          # 提示词输出模板
-    ```
-
-[总体规则]
-    - 始终使用中文与用户交流
-    - 提示词使用英文输出（AI 绘图工具英文效果更好）
-    - 必须先读取 Product-Spec.md，不存在则提示用户先完成需求收集
-    - 不重复追问 Product-Spec.md 里已有的信息
-    - 用户不确定的信息，直接使用默认值继续推进
-    - 按页面拆分生成提示词，每个页面一条提示词
-    - 保持专业友好的语气
-
-[视觉风格选项]
-    | 风格 | 英文 | 说明 | 适用场景 |
-    |------|------|------|---------|
-    | 现代极简 | Minimalism | 简洁留白、干净利落 | 工具类、企业应用 |
-    | 玻璃拟态 | Glassmorphism | 毛玻璃效果、半透明层叠 | 科技产品、仪表盘 |
-    | 新拟态 | Neomorphism | 柔和阴影、微凸起效果 | 音乐播放器、控制面板 |
-    | 便当盒布局 | Bento Grid | 模块化卡片、网格排列 | 数据展示、功能聚合页 |
-    | 暗黑模式 | Dark Mode | 深色背景、低亮度护眼 | 开发工具、影音类 |
-    | 新野兽派 | Neo-Brutalism | 粗黑边框、高对比、大胆配色 | 创意类、潮流品牌 |
-    
-    **默认值**：现代极简（Minimalism）
-
-[配色选项]
-    | 选项 | 说明 |
-    |------|------|
-    | 浅色系 | 白色/浅灰背景，深色文字 |
-    | 深色系 | 深色/黑色背景，浅色文字 |
-    | 指定主色 | 用户指定品牌色或主题色 |
-    
-    **默认值**：浅色系
-
-[目标平台选项]
-    | 选项 | 说明 |
-    |------|------|
-    | 桌面端 | Desktop application，宽屏布局 |
-    | 网页 | Web application，响应式布局 |
-    | 移动端 | Mobile application，竖屏布局 |
-    
-    **默认值**：网页
-
-[工作流程]
-    [启动阶段]
-        目的：读取 Product-Spec.md，提取信息，补充缺失的视觉参数
-        
-        第一步：检测文件
-            检测项目目录中是否存在 Product-Spec.md
-            不存在 → 提示：「未找到 Product-Spec.md，请先使用 /prd 完成需求收集。」，终止流程
-            存在 → 继续
-        
-        第二步：解析 Product-Spec.md
-            读取 Product-Spec.md 文件内容
-            提取以下信息：
-            - 产品概述：了解产品是什么
-            - 功能需求：了解有哪些功能
-            - UI 布局：了解界面结构和控件
-            - 用户流程：了解有哪些页面和状态
-            - 视觉风格（如果文档里提到了）
-            - 配色方案（如果文档里提到了）
-            - 目标平台（如果文档里提到了）
-        
-        第三步：识别页面
-            根据 UI 布局和用户流程，识别产品包含几个页面
-            
-            判断逻辑：
-            - 只有一个主界面 → 单页面产品
-            - 有多个界面（如：主界面、设置页、详情页）→ 多页面产品
-            - 有明显的多步骤流程 → 按步骤拆分页面
-            
-            输出页面清单：
-            "📄 **识别到以下页面：**
-            1. [页面名称]：[简要描述]
-            2. [页面名称]：[简要描述]
-            ..."
-        
-        第四步：补充缺失的视觉参数
-            检查是否已提取到：视觉风格、配色方案、目标平台
-            
-            全部已有 → 跳过提问，直接进入提示词生成阶段
-            有缺失项 → 只针对缺失项询问用户：
-            
-            "🎨 **还需要确认几个视觉参数：**
-            
-            [只列出缺失的项目，已有的不列]
-            
-            直接回复你的选择，或回复「默认」使用默认值。"
-            
-            用户回复后解析选择
-            用户不确定或回复「默认」→ 使用默认值
-
-    [提示词生成阶段]
-        目的：为每个页面生成提示词
-        
-        第一步：准备生成参数
-            整合所有信息：
-            - 产品类型（从产品概述提取）
-            - 页面列表（从启动阶段获取）
-            - 每个页面的布局和控件（从 UI 布局提取）
-            - 视觉风格（从 Product-Spec.md 提取或用户选择）
-            - 配色方案（从 Product-Spec.md 提取或用户选择）
-            - 目标平台（从 Product-Spec.md 提取或用户选择）
-        
-        第二步：按页面生成提示词
-            加载 templates/ui-prompt-template.md 获取提示词结构和输出格式
-            为每个页面生成一条英文提示词
-            按模板中的提示词结构组织内容
-        
-        第三步：输出文件
-            将生成的提示词保存为 UI-Prompts.md
-
-[初始化]
-    执行 [启动阶段]

.claude/skills/ui-prompt-generator/templates/ui-prompt-template.md

@@ -1,154 +0,0 @@
----
-name: ui-prompt-template
-description: UI 原型图提示词输出模板。当需要生成文生图提示词时，按照此模板的结构和格式填充内容，输出为 UI-Prompts.md 文件。
----
-
-# UI 原型图提示词模板
-
-本模板用于生成可直接用于 AI 绘图工具的原型图提示词。生成时按照此结构填充内容。
-
----
-
-## 文件命名
-
-`UI-Prompts.md`
-
----
-
-## 提示词结构
-
-每条提示词按以下结构组织：
-
-```
-[主体] + [布局] + [控件] + [风格] + [质量词]
-```
-
-### [主体]
-产品类型 + 界面类型 + 页面名称
-
-示例：
-- `A modern web application UI for a storyboard generator tool, main interface`
-- `A mobile app screen for a task management application, settings page`
-
-### [布局]
-整体结构 + 比例 + 区域划分
-
-示例：
-- `split layout with left panel (40%) and right content area (60%)`
-- `single column layout with top navigation bar and main content below`
-- `grid layout with 2x2 card arrangement`
-
-### [控件]
-各区域的具体控件，从上到下、从左到右描述
-
-示例：
-- `left panel contains: project name input at top, large text area for content, dropdown menu for style selection, primary action button at bottom`
-- `right panel shows: 3x3 grid of image cards with frame numbers and captions, action buttons below`
-
-### [风格]
-视觉风格 + 配色 + 细节特征
-
-| 风格 | 英文描述 |
-|------|---------|
-| 现代极简 | minimalist design, clean layout, ample white space, subtle shadows |
-| 玻璃拟态 | glassmorphism style, frosted glass effect, translucent panels, blur background |
-| 新拟态 | neumorphism design, soft shadows, subtle highlights, extruded elements |
-| 便当盒布局 | bento grid layout, modular cards, organized sections, clean borders |
-| 暗黑模式 | dark mode UI, dark background, light text, subtle glow effects |
-| 新野兽派 | neo-brutalist design, bold black borders, high contrast, raw aesthetic |
-
-配色描述：
-- 浅色系：`light color scheme, white background, dark text, [accent color] accent`
-- 深色系：`dark color scheme, dark gray background, light text, [accent color] accent`
-
-### [质量词]
-确保生成质量的关键词，放在提示词末尾
-
-```
-UI/UX design, high fidelity mockup, 4K resolution, professional, Figma style, dribbble, behance
-```
-
----
-
-## 输出格式
-
-```markdown
-# [产品名称] 原型图提示词
-
-> 视觉风格：[风格名称]
-> 配色方案：[配色名称]
-> 目标平台：[平台名称]
-
----
-
-## 页面 1：[页面名称]
-
-**页面说明**：[一句话描述这个页面是什么]
-
-**提示词**：
-```
-[完整的英文提示词]
-```
-
----
-
-## 页面 2：[页面名称]
-
-**页面说明**：[一句话描述]
-
-**提示词**：
-```
-[完整的英文提示词]
-```
-```
-
----
-
-## 完整示例
-
-以下是「剧本分镜生成器」的原型图提示词示例，供参考：
-
-```markdown
-# 剧本分镜生成器 原型图提示词
-
-> 视觉风格：现代极简（Minimalism）
-> 配色方案：浅色系
-> 目标平台：网页（Web）
-
----
-
-## 页面 1：主界面
-
-**页面说明**：用户输入剧本、设置角色和场景、生成分镜图的主要工作界面
-
-**提示词**：
-```
-A modern web application UI for a storyboard generator tool, main interface, split layout with left input panel (40% width) and right output area (60% width), left panel contains: project name input field at top, large multiline text area for script input with placeholder text, character cards section with image thumbnails and text fields and add button, scene cards section below, style dropdown menu, prominent generate button at bottom, right panel shows: 3x3 grid of storyboard image cards with frame numbers and short descriptions below each image, download all button and continue generating button below the grid, page navigation at bottom, minimalist design, clean layout, white background, light gray borders, blue accent color for primary actions, subtle shadows, rounded corners, UI/UX design, high fidelity mockup, 4K resolution, professional, Figma style
-```
-
----
-
-## 页面 2：空状态界面
-
-**页面说明**：用户首次打开、尚未输入内容时的引导界面
-
-**提示词**：
-```
-A modern web application UI for a storyboard generator tool, empty state screen, split layout with left panel (40%) and right panel (60%), left panel shows: empty input fields with placeholder text and helper icons, right panel displays: large empty state illustration in the center, welcome message and getting started tips below, minimalist design, clean layout, white background, soft gray placeholder elements, blue accent color, friendly and inviting atmosphere, UI/UX design, high fidelity mockup, 4K resolution, professional, Figma style
-```
-```
-
----
-
-## 写作要点
-
-1. **提示词语言**：始终使用英文，AI 绘图工具对英文理解更好
-2. **结构完整**：确保包含主体、布局、控件、风格、质量词五个部分
-3. **控件描述**：
-   - 按空间顺序描述（上到下、左到右）
-   - 具体到控件类型（input field, button, dropdown, card）
-   - 包含控件状态（placeholder text, selected state）
-4. **布局比例**：写明具体比例（40%/60%），不要只说「左右布局」
-5. **风格一致**：同一产品的多个页面使用相同的风格描述
-6. **质量词**：始终在末尾加上质量词确保生成效果
-7. **页面说明**：用中文写一句话说明，帮助理解这个页面是什么

.claude/skills/verification-loop/SKILL.md

@@ -1,242 +0,0 @@
-# Verification Loop Skill
-
-Comprehensive verification system for Python/FastAPI development.
-
-## When to Use
-
-Invoke this skill:
-- After completing a feature or significant code change
-- Before creating a PR
-- When you want to ensure quality gates pass
-- After refactoring
-- Before deployment
-
-## Verification Phases
-
-### Phase 1: Type Check
-```bash
-# Run mypy type checker
-mypy src/ --ignore-missing-imports 2>&1 | head -30
-```
-
-Report all type errors. Fix critical ones before continuing.
-
-### Phase 2: Lint Check
-```bash
-# Run ruff linter
-ruff check src/ 2>&1 | head -30
-
-# Auto-fix if desired
-ruff check src/ --fix
-```
-
-Check for:
-- Unused imports
-- Code style violations
-- Common Python anti-patterns
-
-### Phase 3: Test Suite
-```bash
-# Run tests with coverage
-pytest --cov=src --cov-report=term-missing -q 2>&1 | tail -50
-
-# Run specific test file
-pytest tests/test_ocr/test_machine_code_parser.py -v
-
-# Run with short traceback
-pytest -x --tb=short
-```
-
-Report:
-- Total tests: X
-- Passed: X
-- Failed: X
-- Coverage: X%
-- Target: 80% minimum
-
-### Phase 4: Security Scan
-```bash
-# Check for hardcoded secrets
-grep -rn "password\s*=" --include="*.py" src/ 2>/dev/null | grep -v "db_password:" | head -10
-grep -rn "api_key\s*=" --include="*.py" src/ 2>/dev/null | head -10
-grep -rn "sk-" --include="*.py" src/ 2>/dev/null | head -10
-
-# Check for print statements (should use logging)
-grep -rn "print(" --include="*.py" src/ 2>/dev/null | head -10
-
-# Check for bare except
-grep -rn "except:" --include="*.py" src/ 2>/dev/null | head -10
-
-# Check for SQL injection risks (f-strings in execute)
-grep -rn 'execute(f"' --include="*.py" src/ 2>/dev/null | head -10
-grep -rn "execute(f'" --include="*.py" src/ 2>/dev/null | head -10
-```
-
-### Phase 5: Import Check
-```bash
-# Verify all imports work
-python -c "from src.web.app import app; print('Web app OK')"
-python -c "from src.inference.pipeline import InferencePipeline; print('Pipeline OK')"
-python -c "from src.ocr.machine_code_parser import parse_payment_line; print('Parser OK')"
-```
-
-### Phase 6: Diff Review
-```bash
-# Show what changed
-git diff --stat
-git diff HEAD --name-only
-
-# Show staged changes
-git diff --staged --stat
-```
-
-Review each changed file for:
-- Unintended changes
-- Missing error handling
-- Potential edge cases
-- Missing type hints
-- Mutable default arguments
-
-### Phase 7: API Smoke Test (if server running)
-```bash
-# Health check
-curl -s http://localhost:8000/api/v1/health | python -m json.tool
-
-# Verify response format
-curl -s http://localhost:8000/api/v1/health | grep -q "healthy" && echo "Health: OK" || echo "Health: FAIL"
-```
-
-## Output Format
-
-After running all phases, produce a verification report:
-
-```
-VERIFICATION REPORT
-==================
-
-Types:     [PASS/FAIL] (X errors)
-Lint:      [PASS/FAIL] (X warnings)
-Tests:     [PASS/FAIL] (X/Y passed, Z% coverage)
-Security:  [PASS/FAIL] (X issues)
-Imports:   [PASS/FAIL]
-Diff:      [X files changed]
-
-Overall:   [READY/NOT READY] for PR
-
-Issues to Fix:
-1. ...
-2. ...
-```
-
-## Quick Commands
-
-```bash
-# Full verification (WSL)
-wsl bash -c "source ~/miniconda3/etc/profile.d/conda.sh && conda activate invoice-py311 && cd /mnt/c/Users/yaoji/git/ColaCoder/invoice-master-poc-v2 && mypy src/ --ignore-missing-imports && ruff check src/ && pytest -x --tb=short"
-
-# Type check only
-wsl bash -c "source ~/miniconda3/etc/profile.d/conda.sh && conda activate invoice-py311 && cd /mnt/c/Users/yaoji/git/ColaCoder/invoice-master-poc-v2 && mypy src/ --ignore-missing-imports"
-
-# Tests only
-wsl bash -c "source ~/miniconda3/etc/profile.d/conda.sh && conda activate invoice-py311 && cd /mnt/c/Users/yaoji/git/ColaCoder/invoice-master-poc-v2 && pytest --cov=src -q"
-```
-
-## Verification Checklist
-
-### Before Commit
-- [ ] mypy passes (no type errors)
-- [ ] ruff check passes (no lint errors)
-- [ ] All tests pass
-- [ ] No print() statements in production code
-- [ ] No hardcoded secrets
-- [ ] No bare `except:` clauses
-- [ ] No SQL injection risks (f-strings in queries)
-- [ ] Coverage >= 80% for changed code
-
-### Before PR
-- [ ] All above checks pass
-- [ ] git diff reviewed for unintended changes
-- [ ] New code has tests
-- [ ] Type hints on all public functions
-- [ ] Docstrings on public APIs
-- [ ] No TODO/FIXME for critical items
-
-### Before Deployment
-- [ ] All above checks pass
-- [ ] E2E tests pass
-- [ ] Health check returns healthy
-- [ ] Model loaded successfully
-- [ ] No server errors in logs
-
-## Common Issues and Fixes
-
-### Type Error: Missing return type
-```python
-# Before
-def process(data):
-    return result
-
-# After
-def process(data: dict) -> InferenceResult:
-    return result
-```
-
-### Lint Error: Unused import
-```python
-# Remove unused imports or add to __all__
-```
-
-### Security: print() in production
-```python
-# Before
-print(f"Processing {doc_id}")
-
-# After
-logger.info(f"Processing {doc_id}")
-```
-
-### Security: Bare except
-```python
-# Before
-except:
-    pass
-
-# After
-except Exception as e:
-    logger.error(f"Error: {e}")
-    raise
-```
-
-### Security: SQL injection
-```python
-# Before (DANGEROUS)
-cur.execute(f"SELECT * FROM docs WHERE id = '{user_input}'")
-
-# After (SAFE)
-cur.execute("SELECT * FROM docs WHERE id = %s", (user_input,))
-```
-
-## Continuous Mode
-
-For long sessions, run verification after major changes:
-
-```markdown
-Checkpoints:
-- After completing each function
-- After finishing a module
-- Before moving to next task
-- Every 15-20 minutes of coding
-
-Run: /verify
-```
-
-## Integration with Other Skills
-
-| Skill | Purpose |
-|-------|---------|
-| code-review | Detailed code analysis |
-| security-review | Deep security audit |
-| tdd-workflow | Test coverage |
-| build-fix | Fix errors incrementally |
-
-This skill provides quick, comprehensive verification. Use specialized skills for deeper analysis.

.opencode/skills/coding-standards/SKILL.md

@@ -396,7 +396,7 @@ def extract_invoice_fields(
 ) -> InferenceResult:
     """Extract structured fields from Swedish invoice PDF.
 
-    Uses YOLOv11 for field detection and PaddleOCR for text extraction.
+    Uses YOLO26 for field detection and PaddleOCR for text extraction.
     Applies field-specific normalization and validation.
 
     Args:

AGENTS.md

@@ -1,12 +1,12 @@
 # Invoice Master POC v2
 
-Swedish Invoice Field Extraction System - YOLOv11 + PaddleOCR 从瑞典 PDF 发票中提取结构化数据。
+Swedish Invoice Field Extraction System - YOLO26 + PaddleOCR 从瑞典 PDF 发票中提取结构化数据。
 
 ## Tech Stack
 
 | Component | Technology |
 |-----------|------------|
-| Object Detection | YOLOv11 (Ultralytics) |
+| Object Detection | YOLO26 (Ultralytics >= 8.4.0) |
 | OCR Engine | PaddleOCR v5 (PP-OCRv5) |
 | PDF Processing | PyMuPDF (fitz) |
 | Database | PostgreSQL + psycopg2 |
@@ -18,7 +18,7 @@ Swedish Invoice Field Extraction System - YOLOv11 + PaddleOCR 从瑞典 PDF 发
 **Prefix ALL commands with:**
 
 ```bash
-wsl bash -c "source ~/miniconda3/etc/profile.d/conda.sh && conda activate invoice-py311 && <command>"
+wsl bash -c "source ~/miniconda3/etc/profile.d/conda.sh && conda activate invoice-sm120 && <command>"
 ```
 
 **NEVER run Python commands directly in Windows PowerShell/CMD.**

ARCHITECTURE_REVIEW.md

@@ -1,666 +0,0 @@
-# Invoice Master POC v2 - 总体架构审查报告
-
-**审查日期**: 2026-02-01  
-**审查人**: Claude Code  
-**项目路径**: `/Users/yiukai/Documents/git/invoice-master-poc-v2`
-
----
-
-## 架构概述
-
-### 整体架构图
-
-```
-┌─────────────────────────────────────────────────────────────────┐
-│                         Frontend (React)                         │
-│              Vite + TypeScript + TailwindCSS                    │
-└─────────────────────────────┬───────────────────────────────────┘
-                              │ HTTP/REST
-┌─────────────────────────────▼───────────────────────────────────┐
-│                    Inference Service (FastAPI)                   │
-│  ┌──────────────┬──────────────┬──────────────┬──────────────┐  │
-│  │  Public API  │  Admin API   │  Training API│  Batch API   │  │
-│  └──────────────┴──────────────┴──────────────┴──────────────┘  │
-│  ┌────────────────────────────────────────────────────────────┐ │
-│  │                    Service Layer                            │ │
-│  │  InferenceService │ AsyncProcessing │ BatchUpload │ Dataset │ │
-│  └────────────────────────────────────────────────────────────┘ │
-│  ┌────────────────────────────────────────────────────────────┐ │
-│  │                    Data Layer                               │ │
-│  │  AdminDB │ AsyncRequestDB │ SQLModel │ PostgreSQL          │ │
-│  └────────────────────────────────────────────────────────────┘ │
-│  ┌────────────────────────────────────────────────────────────┐ │
-│  │                    Core Components                          │ │
-│  │  RateLimiter │ Schedulers │ TaskQueues │ Auth              │ │
-│  └────────────────────────────────────────────────────────────┘ │
-└─────────────────────────────┬───────────────────────────────────┘
-                              │ PostgreSQL
-┌─────────────────────────────▼───────────────────────────────────┐
-│                    Training Service (GPU)                        │
-│  ┌────────────────────────────────────────────────────────────┐ │
-│  │  CLI: train │ autolabel │ analyze │ validate               │ │
-│  └────────────────────────────────────────────────────────────┘ │
-│  ┌────────────────────────────────────────────────────────────┐ │
-│  │  YOLO: db_dataset │ annotation_generator                   │ │
-│  └────────────────────────────────────────────────────────────┘ │
-│  ┌────────────────────────────────────────────────────────────┐ │
-│  │  Processing: CPU Pool │ GPU Pool │ Task Dispatcher         │ │
-│  └────────────────────────────────────────────────────────────┘ │
-└─────────────────────────────────────────────────────────────────┘
-                              │
-                    ┌─────────┴─────────┐
-                    ▼                   ▼
-            ┌──────────────┐    ┌──────────────┐
-            │    Shared    │    │   Storage    │
-            │  PDF │ OCR   │    │ Local/Azure/ │
-            │  Normalize   │    │     S3       │
-            └──────────────┘    └──────────────┘
-```
-
-### 技术栈
-
-| 层级 | 技术 | 评估 |
-|------|------|------|
-| **前端** | React + Vite + TypeScript + TailwindCSS | ✅ 现代栈 |
-| **API 框架** | FastAPI | ✅ 高性能，类型安全 |
-| **数据库** | PostgreSQL + SQLModel | ✅ 类型安全 ORM |
-| **目标检测** | YOLOv11 (Ultralytics) | ✅ 业界标准 |
-| **OCR** | PaddleOCR v5 | ✅ 支持瑞典语 |
-| **部署** | Docker + Azure/AWS | ✅ 云原生 |
-
----
-
-## 架构优势
-
-### 1. Monorepo 结构 ✅
-
-```
-packages/
-├── shared/      # 共享库 - 无外部依赖
-├── training/    # 训练服务 - 依赖 shared
-└── inference/   # 推理服务 - 依赖 shared
-```
-
-**优点**:
-- 清晰的包边界，无循环依赖
-- 独立部署，training 按需启动
-- 代码复用率高
-
-### 2. 分层架构 ✅
-
-```
-API Routes (web/api/v1/)
-    ↓
-Service Layer (web/services/)
-    ↓
-Data Layer (data/)
-    ↓
-Database (PostgreSQL)
-```
-
-**优点**:
-- 职责分离明确
-- 便于单元测试
-- 可替换底层实现
-
-### 3. 依赖注入 ✅
-
-```python
-# FastAPI Depends 使用得当
-@router.post("/infer")
-async def infer(
-    file: UploadFile,
-    db: AdminDB = Depends(get_admin_db),  # 注入
-    token: str = Depends(validate_admin_token),
-):
-```
-
-### 4. 存储抽象层 ✅
-
-```python
-# 统一接口，支持多后端
-class StorageBackend(ABC):
-    def upload(self, source: Path, destination: str) -> None: ...
-    def download(self, source: str, destination: Path) -> None: ...
-    def get_presigned_url(self, path: str) -> str: ...
-
-# 实现: LocalStorageBackend, AzureStorageBackend, S3StorageBackend
-```
-
-### 5. 动态模型管理 ✅
-
-```python
-# 数据库驱动的模型切换
-def get_active_model_path() -> Path | None:
-    db = AdminDB()
-    active_model = db.get_active_model_version()
-    return active_model.model_path if active_model else None
-
-inference_service = InferenceService(
-    model_path_resolver=get_active_model_path,
-)
-```
-
-### 6. 任务队列分离 ✅
-
-```python
-# 不同类型任务使用不同队列
-- AsyncTaskQueue: 异步推理任务
-- BatchQueue: 批量上传任务
-- TrainingScheduler: 训练任务调度
-- AutoLabelScheduler: 自动标注调度
-```
-
----
-
-## 架构问题与风险
-
-### 1. 数据库层职责过重 ⚠️ **中风险**
-
-**问题**: `AdminDB` 类过大，违反单一职责原则
-
-```python
-# packages/inference/inference/data/admin_db.py
-class AdminDB:
-    # Token 管理 (5 个方法)
-    def is_valid_admin_token(self, token: str) -> bool: ...
-    def create_admin_token(self, token: str, name: str): ...
-    
-    # 文档管理 (8 个方法)
-    def create_document(self, ...): ...
-    def get_document(self, doc_id: str): ...
-    
-    # 标注管理 (6 个方法)
-    def create_annotation(self, ...): ...
-    def get_annotations(self, doc_id: str): ...
-    
-    # 训练任务 (7 个方法)
-    def create_training_task(self, ...): ...
-    def update_training_task(self, ...): ...
-    
-    # 数据集 (6 个方法)
-    def create_dataset(self, ...): ...
-    def get_dataset(self, dataset_id: str): ...
-    
-    # 模型版本 (5 个方法)
-    def create_model_version(self, ...): ...
-    def activate_model_version(self, ...): ...
-    
-    # 批处理 (4 个方法)
-    # 锁管理 (3 个方法)
-    # ... 总计 50+ 方法
-```
-
-**影响**:
-- 类过大，难以维护
-- 测试困难
-- 不同领域变更互相影响
-
-**建议**: 按领域拆分为 Repository 模式
-
-```python
-# 建议重构
-class TokenRepository:
-    def validate(self, token: str) -> bool: ...
-    def create(self, token: Token) -> None: ...
-
-class DocumentRepository:
-    def find_by_id(self, doc_id: str) -> Document | None: ...
-    def save(self, document: Document) -> None: ...
-
-class TrainingRepository:
-    def create_task(self, config: TrainingConfig) -> TrainingTask: ...
-    def update_task_status(self, task_id: str, status: TaskStatus): ...
-
-class ModelRepository:
-    def get_active(self) -> ModelVersion | None: ...
-    def activate(self, version_id: str) -> None: ...
-```
-
----
-
-### 2. Service 层混合业务逻辑与技术细节 ⚠️ **中风险**
-
-**问题**: `InferenceService` 既处理业务逻辑又处理技术实现
-
-```python
-# packages/inference/inference/web/services/inference.py
-class InferenceService:
-    def process(self, image_bytes: bytes) -> ServiceResult:
-        # 1. 技术细节: 图像解码
-        image = Image.open(io.BytesIO(image_bytes))
-        
-        # 2. 业务逻辑: 字段提取
-        fields = self._extract_fields(image)
-        
-        # 3. 技术细节: 模型推理
-        detections = self._model.predict(image)
-        
-        # 4. 业务逻辑: 结果验证
-        if not self._validate_fields(fields):
-            raise ValidationError()
-```
-
-**影响**:
-- 难以测试业务逻辑
-- 技术变更影响业务代码
-- 无法切换技术实现
-
-**建议**: 引入领域层和适配器模式
-
-```python
-# 领域层 - 纯业务逻辑
-@dataclass
-class InvoiceDocument:
-    document_id: str
-    pages: list[Page]
-    
-class InvoiceExtractor:
-    """纯业务逻辑，不依赖技术实现"""
-    def extract(self, document: InvoiceDocument) -> InvoiceFields:
-        # 只处理业务规则
-        pass
-
-# 适配器层 - 技术实现
-class YoloFieldDetector:
-    """YOLO 技术适配器"""
-    def __init__(self, model_path: Path):
-        self._model = YOLO(model_path)
-    
-    def detect(self, image: np.ndarray) -> list[FieldRegion]:
-        return self._model.predict(image)
-
-class PaddleOcrEngine:
-    """PaddleOCR 技术适配器"""
-    def __init__(self):
-        self._ocr = PaddleOCR()
-    
-    def recognize(self, image: np.ndarray, region: BoundingBox) -> str:
-        return self._ocr.ocr(image, region)
-
-# 应用服务 - 协调领域和适配器
-class InvoiceProcessingService:
-    def __init__(
-        self,
-        extractor: InvoiceExtractor,
-        detector: FieldDetector,
-        ocr: OcrEngine,
-    ):
-        self._extractor = extractor
-        self._detector = detector
-        self._ocr = ocr
-```
-
----
-
-### 3. 调度器设计分散 ⚠️ **中风险**
-
-**问题**: 多个独立调度器缺乏统一协调
-
-```python
-# 当前设计 - 4 个独立调度器
-# 1. TrainingScheduler (core/scheduler.py)
-# 2. AutoLabelScheduler (core/autolabel_scheduler.py)
-# 3. AsyncTaskQueue (workers/async_queue.py)
-# 4. BatchQueue (workers/batch_queue.py)
-
-# app.py 中分别启动
-start_scheduler()           # 训练调度器
-start_autolabel_scheduler() # 自动标注调度器
-init_batch_queue()          # 批处理队列
-```
-
-**影响**:
-- 资源竞争风险
-- 难以监控和追踪
-- 任务优先级难以管理
-- 重启时任务丢失
-
-**建议**: 使用 Celery + Redis 统一任务队列
-
-```python
-# 建议重构
-from celery import Celery
-
-app = Celery('invoice_master')
-
-@app.task(bind=True, max_retries=3)
-def process_inference(self, document_id: str):
-    """异步推理任务"""
-    try:
-        service = get_inference_service()
-        result = service.process(document_id)
-        return result
-    except Exception as exc:
-        raise self.retry(exc=exc, countdown=60)
-
-@app.task
-def train_model(dataset_id: str, config: dict):
-    """训练任务"""
-    training_service = get_training_service()
-    return training_service.train(dataset_id, config)
-
-@app.task
-def auto_label_documents(document_ids: list[str]):
-    """批量自动标注"""
-    for doc_id in document_ids:
-        auto_label_document.delay(doc_id)
-
-# 优先级队列
-app.conf.task_routes = {
-    'tasks.process_inference': {'queue': 'high_priority'},
-    'tasks.train_model': {'queue': 'gpu_queue'},
-    'tasks.auto_label_documents': {'queue': 'low_priority'},
-}
-```
-
----
-
-### 4. 配置分散 ⚠️ **低风险**
-
-**问题**: 配置分散在多个文件
-
-```python
-# packages/shared/shared/config.py
-DATABASE = {...}
-PATHS = {...}
-AUTOLABEL = {...}
-
-# packages/inference/inference/web/config.py
-@dataclass
-class ModelConfig: ...
-@dataclass
-class ServerConfig: ...
-@dataclass
-class FileConfig: ...
-
-# 环境变量
-# .env 文件
-```
-
-**影响**:
-- 配置难以追踪
-- 可能出现不一致
-- 缺少配置验证
-
-**建议**: 使用 Pydantic Settings 集中管理
-
-```python
-# config/settings.py
-from pydantic_settings import BaseSettings, SettingsConfigDict
-
-class DatabaseSettings(BaseSettings):
-    model_config = SettingsConfigDict(env_prefix='DB_')
-    
-    host: str = 'localhost'
-    port: int = 5432
-    name: str = 'docmaster'
-    user: str = 'docmaster'
-    password: str  # 无默认值，必须设置
-
-class StorageSettings(BaseSettings):
-    model_config = SettingsConfigDict(env_prefix='STORAGE_')
-    
-    backend: str = 'local'
-    base_path: str = '~/invoice-data'
-    azure_connection_string: str | None = None
-    s3_bucket: str | None = None
-
-class Settings(BaseSettings):
-    model_config = SettingsConfigDict(
-        env_file='.env',
-        env_file_encoding='utf-8',
-    )
-    
-    database: DatabaseSettings = DatabaseSettings()
-    storage: StorageSettings = StorageSettings()
-    
-    # 验证
-    @field_validator('database')
-    def validate_database(cls, v):
-        if not v.password:
-            raise ValueError('Database password is required')
-        return v
-
-# 全局配置实例
-settings = Settings()
-```
-
----
-
-### 5. 内存队列单点故障 ⚠️ **中风险**
-
-**问题**: AsyncTaskQueue 和 BatchQueue 基于内存
-
-```python
-# workers/async_queue.py
-class AsyncTaskQueue:
-    def __init__(self):
-        self._queue = Queue()  # 内存队列
-        self._workers = []
-    
-    def enqueue(self, task: AsyncTask) -> None:
-        self._queue.put(task)  # 仅存储在内存
-```
-
-**影响**:
-- 服务重启丢失所有待处理任务
-- 无法水平扩展
-- 任务持久化困难
-
-**建议**: 使用 Redis/RabbitMQ 持久化队列
-
----
-
-### 6. 缺少 API 版本迁移策略 ❓ **低风险**
-
-**问题**: 有 `/api/v1/` 版本，但缺少升级策略
-
-```
-当前: /api/v1/admin/documents
-未来: /api/v2/admin/documents ?
-```
-
-**建议**: 
-- 制定 API 版本升级流程
-- 使用 Header 版本控制
-- 维护版本兼容性文档
-
----
-
-## 关键架构风险矩阵
-
-| 风险项 | 概率 | 影响 | 风险等级 | 优先级 |
-|--------|------|------|----------|--------|
-| 内存队列丢失任务 | 中 | 高 | **高** | 🔴 P0 |
-| AdminDB 职责过重 | 高 | 中 | **中** | 🟡 P1 |
-| Service 层混合 | 高 | 中 | **中** | 🟡 P1 |
-| 调度器资源竞争 | 中 | 中 | **中** | 🟡 P1 |
-| 配置分散 | 高 | 低 | **低** | 🟢 P2 |
-| API 版本策略 | 低 | 低 | **低** | 🟢 P2 |
-
----
-
-## 改进建议路线图
-
-### Phase 1: 立即执行 (本周)
-
-#### 1.1 拆分 AdminDB
-```python
-# 创建 repositories 包
-inference/data/repositories/
-├── __init__.py
-├── base.py           # Repository 基类
-├── token.py          # TokenRepository
-├── document.py       # DocumentRepository
-├── annotation.py     # AnnotationRepository
-├── training.py       # TrainingRepository
-├── dataset.py        # DatasetRepository
-└── model.py          # ModelRepository
-```
-
-#### 1.2 统一配置
-```python
-# 创建统一配置模块
-inference/config/
-├── __init__.py
-├── settings.py       # Pydantic Settings
-└── validators.py     # 配置验证
-```
-
-### Phase 2: 短期执行 (本月)
-
-#### 2.1 引入消息队列
-```yaml
-# docker-compose.yml 添加
-services:
-  redis:
-    image: redis:7-alpine
-    ports:
-      - "6379:6379"
-  
-  celery_worker:
-    build: .
-    command: celery -A inference.tasks worker -l info
-    depends_on:
-      - redis
-      - postgres
-```
-
-#### 2.2 添加缓存层
-```python
-# 使用 Redis 缓存热点数据
-from redis import Redis
-
-redis_client = Redis(host='localhost', port=6379)
-
-class CachedDocumentRepository(DocumentRepository):
-    def find_by_id(self, doc_id: str) -> Document | None:
-        # 先查缓存
-        cached = redis_client.get(f"doc:{doc_id}")
-        if cached:
-            return Document.parse_raw(cached)
-        
-        # 再查数据库
-        doc = super().find_by_id(doc_id)
-        if doc:
-            redis_client.setex(f"doc:{doc_id}", 3600, doc.json())
-        return doc
-```
-
-### Phase 3: 长期执行 (本季度)
-
-#### 3.1 数据库读写分离
-```python
-# 配置主从数据库
-class DatabaseManager:
-    def __init__(self):
-        self._master = create_engine(MASTER_DB_URL)
-        self._replica = create_engine(REPLICA_DB_URL)
-    
-    def get_session(self, readonly: bool = False) -> Session:
-        engine = self._replica if readonly else self._master
-        return Session(engine)
-```
-
-#### 3.2 事件驱动架构
-```python
-# 引入事件总线
-from event_bus import EventBus
-
-bus = EventBus()
-
-# 发布事件
-@router.post("/documents")
-async def create_document(...):
-    doc = document_repo.save(document)
-    bus.publish('document.created', {'document_id': doc.id})
-    return doc
-
-# 订阅事件
-@bus.subscribe('document.created')
-def on_document_created(event):
-    # 触发自动标注
-    auto_label_task.delay(event['document_id'])
-```
-
----
-
-## 架构演进建议
-
-### 当前架构 (适合 1-10 用户)
-
-```
-Single Instance
-├── FastAPI App
-├── Memory Queues
-└── PostgreSQL
-```
-
-### 目标架构 (适合 100+ 用户)
-
-```
-Load Balancer
-    ├── FastAPI Instance 1
-    ├── FastAPI Instance 2
-    └── FastAPI Instance N
-            │
-    ┌───────┴───────┐
-    ▼               ▼
-Redis Cluster   PostgreSQL
-(Celery + Cache) (Master + Replica)
-```
-
----
-
-## 总结
-
-### 总体评分
-
-| 维度 | 评分 | 说明 |
-|------|------|------|
-| **模块化** | 8/10 | 包结构清晰，但部分类过大 |
-| **可扩展性** | 7/10 | 水平扩展良好，垂直扩展受限 |
-| **可维护性** | 8/10 | 分层合理，但职责边界需细化 |
-| **可靠性** | 7/10 | 内存队列是单点故障 |
-| **性能** | 8/10 | 异步处理良好 |
-| **安全性** | 8/10 | 基础安全到位 |
-| **总体** | **7.7/10** | 良好的架构基础，需优化细节 |
-
-### 关键结论
-
-1. **架构设计合理**: Monorepo + 分层架构适合当前规模
-2. **主要风险**: 内存队列和数据库职责过重
-3. **演进路径**: 引入消息队列和缓存层
-4. **投入产出**: 当前架构可支撑到 100+ 用户，无需大规模重构
-
-### 下一步行动
-
-| 优先级 | 任务 | 预计工时 | 影响 |
-|--------|------|----------|------|
-| 🔴 P0 | 引入 Celery + Redis | 3 天 | 解决任务丢失问题 |
-| 🟡 P1 | 拆分 AdminDB | 2 天 | 提升可维护性 |
-| 🟡 P1 | 统一配置管理 | 1 天 | 减少配置错误 |
-| 🟢 P2 | 添加缓存层 | 2 天 | 提升性能 |
-| 🟢 P2 | 数据库读写分离 | 3 天 | 提升扩展性 |
-
----
-
-## 附录
-
-### 关键文件清单
-
-| 文件 | 职责 | 问题 |
-|------|------|------|
-| `inference/data/admin_db.py` | 数据库操作 | 类过大，需拆分 |
-| `inference/web/services/inference.py` | 推理服务 | 混合业务和技术 |
-| `inference/web/workers/async_queue.py` | 异步队列 | 内存存储，易丢失 |
-| `inference/web/core/scheduler.py` | 任务调度 | 缺少统一协调 |
-| `shared/shared/config.py` | 共享配置 | 分散管理 |
-
-### 参考资源
-
-- [Repository Pattern](https://martinfowler.com/eaaCatalog/repository.html)
-- [Celery Documentation](https://docs.celeryproject.org/)
-- [Pydantic Settings](https://docs.pydantic.dev/latest/concepts/pydantic_settings/)
-- [FastAPI Best Practices](https://fastapi.tiangolo.com/tutorial/bigger-applications/)

CHANGELOG.md

@@ -1,317 +0,0 @@
-# Changelog
-
-All notable changes to the Invoice Field Extraction project will be documented in this file.
-
-The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
-and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
-
-## [Unreleased]
-
-### Added - Phase 1: Security & Infrastructure (2026-01-22)
-
-#### Security Enhancements
-- **Environment Variable Management**: Added `python-dotenv` for secure configuration management
-  - Created `.env.example` template file for configuration reference
-  - Created `.env` file for actual credentials (gitignored)
-  - Updated `config.py` to load database password from environment variables
-  - Added validation to ensure `DB_PASSWORD` is set at startup
-  - Files modified: `config.py`, `requirements.txt`
-  - New files: `.env`, `.env.example`
-  - Tests: `tests/test_config.py` (7 tests, all passing)
-
-- **SQL Injection Prevention**: Fixed SQL injection vulnerabilities in database queries
-  - Replaced f-string formatting with parameterized queries in `LIMIT` clauses
-  - Updated `get_all_documents_summary()` to use `%s` placeholder for LIMIT parameter
-  - Updated `get_failed_matches()` to use `%s` placeholder for LIMIT parameter
-  - Files modified: `src/data/db.py` (lines 246, 298)
-  - Tests: `tests/test_db_security.py` (9 tests, all passing)
-
-#### Code Quality
-- **Exception Hierarchy**: Created comprehensive custom exception system
-  - Added base class `InvoiceExtractionError` with message and details support
-  - Added specific exception types:
-    - `PDFProcessingError` - PDF rendering/conversion errors
-    - `OCRError` - OCR processing errors
-    - `ModelInferenceError` - YOLO model errors
-    - `FieldValidationError` - Field validation errors (with field-specific attributes)
-    - `DatabaseError` - Database operation errors
-    - `ConfigurationError` - Configuration errors
-    - `PaymentLineParseError` - Payment line parsing errors
-    - `CustomerNumberParseError` - Customer number parsing errors
-    - `DataLoadError` - Data loading errors
-    - `AnnotationError` - Annotation generation errors
-  - New file: `src/exceptions.py`
-  - Tests: `tests/test_exceptions.py` (16 tests, all passing)
-
-### Testing
-- Added 32 new tests across 3 test files
-  - Configuration tests: 7 tests
-  - SQL injection prevention tests: 9 tests
-  - Exception hierarchy tests: 16 tests
-- All tests passing (32/32)
-
-### Documentation
-- Created `docs/CODE_REVIEW_REPORT.md` - Comprehensive code quality analysis (550+ lines)
-- Created `docs/REFACTORING_PLAN.md` - Detailed 3-phase refactoring plan (600+ lines)
-- Created `CHANGELOG.md` - Project changelog (this file)
-
-### Changed
-- **Configuration Loading**: Database configuration now loads from environment variables instead of hardcoded values
-  - Breaking change: Requires `.env` file with `DB_PASSWORD` set
-  - Migration: Copy `.env.example` to `.env` and set your database password
-
-### Security
-- **Fixed**: Database password no longer stored in plain text in `config.py`
-- **Fixed**: SQL injection vulnerabilities in LIMIT clauses (2 instances)
-
-### Technical Debt Addressed
-- Eliminated security vulnerability: plaintext password storage
-- Reduced SQL injection attack surface
-- Improved error handling granularity with custom exceptions
-
----
-
-### Added - Phase 2: Parser Refactoring (2026-01-22)
-
-#### Unified Parser Modules
-- **Payment Line Parser**: Created dedicated payment line parsing module
-  - Handles Swedish payment line format: `# <OCR> # <Kronor> <Öre> <Type> > <Account>#<Check>#`
-  - Tolerates common OCR errors: spaces in numbers, missing symbols, spaces in check digits
-  - Supports 4 parsing patterns: full format, no amount, alternative, account-only
-  - Returns structured `PaymentLineData` with parsed fields
-  - New file: `src/inference/payment_line_parser.py` (90 lines, 92% coverage)
-  - Tests: `tests/test_payment_line_parser.py` (23 tests, all passing)
-  - Eliminates 1st code duplication (payment line parsing logic)
-
-- **Customer Number Parser**: Created dedicated customer number parsing module
-  - Handles Swedish customer number formats: `JTY 576-3`, `DWQ 211-X`, `FFL 019N`, etc.
-  - Uses Strategy Pattern with 5 pattern classes:
-    - `LabeledPattern` - Explicit labels (highest priority, 0.98 confidence)
-    - `DashFormatPattern` - Standard format with dash (0.95 confidence)
-    - `NoDashFormatPattern` - Format without dash, adds dash automatically (0.90 confidence)
-    - `CompactFormatPattern` - Compact format without spaces (0.75 confidence)
-    - `GenericAlphanumericPattern` - Fallback generic pattern (variable confidence)
-  - Excludes Swedish postal codes (`SE XXX XX` format)
-  - Returns highest confidence match
-  - New file: `src/inference/customer_number_parser.py` (154 lines, 92% coverage)
-  - Tests: `tests/test_customer_number_parser.py` (32 tests, all passing)
-  - Reduces `_normalize_customer_number` complexity (127 lines → will use 5-10 lines after integration)
-
-### Testing Summary
-
-**Phase 1 Tests** (32 tests):
-- Configuration tests: 7 tests ([test_config.py](tests/test_config.py))
-- SQL injection prevention tests: 9 tests ([test_db_security.py](tests/test_db_security.py))
-- Exception hierarchy tests: 16 tests ([test_exceptions.py](tests/test_exceptions.py))
-
-**Phase 2 Tests** (121 tests):
-- Payment line parser tests: 23 tests ([test_payment_line_parser.py](tests/test_payment_line_parser.py))
-  - Standard parsing, OCR error handling, real-world examples, edge cases
-  - Coverage: 92%
-- Customer number parser tests: 32 tests ([test_customer_number_parser.py](tests/test_customer_number_parser.py))
-  - Pattern matching (DashFormat, NoDashFormat, Compact, Labeled)
-  - Real-world examples, edge cases, Swedish postal code exclusion
-  - Coverage: 92%
-- Field extractor integration tests: 45 tests ([test_field_extractor.py](src/inference/test_field_extractor.py))
-  - Validates backward compatibility with existing code
-  - Tests for invoice numbers, bankgiro, plusgiro, amounts, OCR, dates, payment lines, customer numbers
-- Pipeline integration tests: 21 tests ([test_pipeline.py](src/inference/test_pipeline.py))
-  - Cross-validation, payment line parsing, field overrides
-
-**Total**: 153 tests, 100% passing, 4.50s runtime
-
-### Code Quality
-- **Eliminated Code Duplication**: Payment line parsing previously in 3 places, now unified in 1 module
-- **Improved Maintainability**: Strategy Pattern makes customer number patterns easy to extend
-- **Better Test Coverage**: New parsers have 92% coverage vs original 10% in field_extractor.py
-
-#### Parser Integration into field_extractor.py (2026-01-22)
-
-- **field_extractor.py Integration**: Successfully integrated new parsers
-  - Added `PaymentLineParser` and `CustomerNumberParser` instances (lines 99-101)
-  - Replaced `_normalize_payment_line` method: 74 lines → 3 lines (lines 640-657)
-  - Replaced `_normalize_customer_number` method: 127 lines → 3 lines (lines 697-707)
-  - All 45 existing tests pass (100% backward compatibility maintained)
-  - Tests run time: 4.21 seconds
-  - File: `src/inference/field_extractor.py`
-
-#### Parser Integration into pipeline.py (2026-01-22)
-
-- **pipeline.py Integration**: Successfully integrated PaymentLineParser
-  - Added `PaymentLineParser` import (line 15)
-  - Added `payment_line_parser` instance initialization (line 128)
-  - Replaced `_parse_machine_readable_payment_line` method: 36 lines → 6 lines (lines 219-233)
-  - All 21 existing tests pass (100% backward compatibility maintained)
-  - Tests run time: 4.00 seconds
-  - File: `src/inference/pipeline.py`
-
-### Phase 2 Status: **COMPLETED** ✅
-
-- [x] Create unified `payment_line_parser` module ✅
-- [x] Create unified `customer_number_parser` module ✅
-- [x] Refactor `field_extractor.py` to use new parsers ✅
-- [x] Refactor `pipeline.py` to use new parsers ✅
-- [x] Comprehensive test suite (153 tests, 100% passing) ✅
-
-### Achieved Impact
-- Eliminate code duplication: 3 implementations → 1 ✅ (payment_line unified across field_extractor.py, pipeline.py, tests)
-- Reduce `_normalize_payment_line` complexity in field_extractor.py: 74 lines → 3 lines ✅
-- Reduce `_normalize_customer_number` complexity in field_extractor.py: 127 lines → 3 lines ✅
-- Reduce `_parse_machine_readable_payment_line` complexity in pipeline.py: 36 lines → 6 lines ✅
-- Total lines of code eliminated: 201 lines reduced to 12 lines (94% reduction) ✅
-- Improve test coverage: New parser modules have 92% coverage (vs original 10% in field_extractor.py)
-- Simplify maintenance: Pattern-based approach makes extension easy
-- 100% backward compatibility: All 66 existing tests pass (45 field_extractor + 21 pipeline)
-
----
-
-## Phase 3: Performance & Documentation (2026-01-22)
-
-### Added
-
-#### Configuration Constants Extraction
-- **Created `src/inference/constants.py`**: Centralized configuration constants
-  - Detection & model configuration (confidence thresholds, IOU)
-  - Image processing configuration (DPI, scaling factors)
-  - Customer number parser confidence scores
-  - Field extraction confidence multipliers
-  - Account type detection thresholds
-  - Pattern matching constants
-  - 90 lines of well-documented constants with usage notes
-  - Eliminates ~15 hardcoded magic numbers across codebase
-  - File: [src/inference/constants.py](src/inference/constants.py)
-
-#### Performance Optimization Documentation
-- **Created `docs/PERFORMANCE_OPTIMIZATION.md`**: Comprehensive performance guide (400+ lines)
-  - **Batch Processing Optimization**: Parallel processing strategies, already-implemented dual pool system
-  - **Database Query Optimization**: Connection pooling recommendations, index strategies
-  - **Caching Strategies**: Model loading cache, parser reuse (already optimal), OCR result caching
-  - **Memory Management**: Explicit cleanup, generator patterns, context managers
-  - **Profiling Guidelines**: cProfile, memory_profiler, py-spy recommendations
-  - **Benchmarking Scripts**: Ready-to-use performance measurement code
-  - **Priority Roadmap**: High/Medium/Low priority optimizations with effort estimates
-  - Expected impact: 2-5x throughput improvement for batch processing
-  - File: [docs/PERFORMANCE_OPTIMIZATION.md](docs/PERFORMANCE_OPTIMIZATION.md)
-
-### Phase 3 Status: **COMPLETED** ✅
-
-- [x] Configuration constants extraction ✅
-- [x] Performance optimization analysis ✅
-- [x] Batch processing optimization recommendations ✅
-- [x] Database optimization strategies ✅
-- [x] Caching and memory management guidelines ✅
-- [x] Profiling and benchmarking documentation ✅
-
-### Deliverables
-
-**New Files** (2 files):
-1. `src/inference/constants.py` (90 lines) - Centralized configuration constants
-2. `docs/PERFORMANCE_OPTIMIZATION.md` (400+ lines) - Performance optimization guide
-
-**Impact**:
-- Eliminates 15+ hardcoded magic numbers
-- Provides clear optimization roadmap
-- Documents existing performance features
-- Identifies quick wins (connection pooling, indexes)
-- Long-term strategy (caching, profiling)
-
----
-
-## Notes
-
-### Breaking Changes
-- **v2.x**: Requires `.env` file with database credentials
-  - Action required: Create `.env` file based on `.env.example`
-  - Affected: All deployments, CI/CD pipelines
-
-### Migration Guide
-
-#### From v1.x to v2.x (Environment Variables)
-1. Copy `.env.example` to `.env`:
-   ```bash
-   cp .env.example .env
-   ```
-
-2. Edit `.env` and set your database password:
-   ```
-   DB_PASSWORD=your_actual_password_here
-   ```
-
-3. Install new dependency:
-   ```bash
-   pip install python-dotenv
-   ```
-
-4. Verify configuration loads correctly:
-   ```bash
-   python -c "import config; print('Config loaded successfully')"
-   ```
-
-## Summary of All Work Completed
-
-### Files Created (13 new files)
-
-**Phase 1** (3 files):
-1. `.env` - Environment variables for database credentials
-2. `.env.example` - Template for environment configuration
-3. `src/exceptions.py` - Custom exception hierarchy (35 lines, 66% coverage)
-
-**Phase 2** (7 files):
-4. `src/inference/payment_line_parser.py` - Unified payment line parsing (90 lines, 92% coverage)
-5. `src/inference/customer_number_parser.py` - Unified customer number parsing (154 lines, 92% coverage)
-6. `tests/test_config.py` - Configuration tests (7 tests)
-7. `tests/test_db_security.py` - SQL injection prevention tests (9 tests)
-8. `tests/test_exceptions.py` - Exception hierarchy tests (16 tests)
-9. `tests/test_payment_line_parser.py` - Payment line parser tests (23 tests)
-10. `tests/test_customer_number_parser.py` - Customer number parser tests (32 tests)
-
-**Phase 3** (2 files):
-11. `src/inference/constants.py` - Centralized configuration constants (90 lines)
-12. `docs/PERFORMANCE_OPTIMIZATION.md` - Performance optimization guide (400+ lines)
-
-**Documentation** (1 file):
-13. `CHANGELOG.md` - This file (260+ lines of detailed documentation)
-
-### Files Modified (4 files)
-1. `config.py` - Added environment variable loading with python-dotenv
-2. `src/data/db.py` - Fixed 2 SQL injection vulnerabilities (lines 246, 298)
-3. `src/inference/field_extractor.py` - Integrated new parsers (reduced 201 lines to 6 lines)
-4. `src/inference/pipeline.py` - Integrated PaymentLineParser (reduced 36 lines to 6 lines)
-5. `requirements.txt` - Added python-dotenv dependency
-
-### Test Summary
-- **Total tests**: 153 tests across 7 test files
-- **Passing**: 153 (100%)
-- **Failing**: 0
-- **Runtime**: 4.50 seconds
-- **Coverage**:
-  - New parser modules: 92%
-  - Config module: 100%
-  - Exception module: 66%
-  - DB security coverage: 18% (focused on parameterized queries)
-
-### Code Metrics
-- **Lines eliminated**: 237 lines of duplicated/complex code → 18 lines (92% reduction)
-  - field_extractor.py: 201 lines → 6 lines
-  - pipeline.py: 36 lines → 6 lines
-- **New code added**: 279 lines of well-tested parser code
-- **Net impact**: Replaced 237 lines of duplicate code with 279 lines of unified, tested code (+42 lines, but -3 implementations)
-- **Test coverage improvement**: 0% → 92% for parser logic
-
-### Performance Impact
-- Configuration loading: Negligible (<1ms overhead for .env parsing)
-- SQL queries: No performance change (parameterized queries are standard practice)
-- Parser refactoring: No performance degradation (logic simplified, not changed)
-- Exception handling: Minimal overhead (only when exceptions are raised)
-
-### Security Improvements
-- ✅ Eliminated plaintext password storage
-- ✅ Fixed 2 SQL injection vulnerabilities
-- ✅ Added input validation in database layer
-
-### Maintainability Improvements
-- ✅ Eliminated code duplication (3 implementations → 1)
-- ✅ Strategy Pattern enables easy extension of customer number formats
-- ✅ Comprehensive test suite (153 tests) ensures safe refactoring
-- ✅ 100% backward compatibility maintained
-- ✅ Custom exception hierarchy for granular error handling

CODE_REVIEW_REPORT.md

@@ -1,805 +0,0 @@
-# Invoice Master POC v2 - 详细代码审查报告
-
-**审查日期**: 2026-02-01  
-**审查人**: Claude Code  
-**项目路径**: `C:\Users\yaoji\git\ColaCoder\invoice-master-poc-v2`  
-**代码统计**: 
-- Python文件: 200+ 个
-- 测试文件: 97 个
-- TypeScript/React文件: 39 个
-- 总测试数: 1,601 个
-- 测试覆盖率: 28%
-
----
-
-## 目录
-
-1. [执行摘要](#执行摘要)
-2. [架构概览](#架构概览)
-3. [详细模块审查](#详细模块审查)
-4. [代码质量问题](#代码质量问题)
-5. [安全风险分析](#安全风险分析)
-6. [性能问题](#性能问题)
-7. [改进建议](#改进建议)
-8. [总结与评分](#总结与评分)
-
----
-
-## 执行摘要
-
-### 总体评估
-
-| 维度 | 评分 | 状态 |
-|------|------|------|
-| **代码质量** | 7.5/10 | 良好，但有改进空间 |
-| **安全性** | 7/10 | 基础安全到位，需加强 |
-| **可维护性** | 8/10 | 模块化良好 |
-| **测试覆盖** | 5/10 | 偏低，需提升 |
-| **性能** | 8/10 | 异步处理良好 |
-| **文档** | 8/10 | 文档详尽 |
-| **总体** | **7.3/10** | 生产就绪，需小幅改进 |
-
-### 关键发现
-
-**优势:**
-- 清晰的Monorepo架构，三包分离合理
-- 类型注解覆盖率高（>90%）
-- 存储抽象层设计优秀
-- FastAPI使用规范，依赖注入模式良好
-- 异常处理完善，自定义异常层次清晰
-
-**风险:**
-- 测试覆盖率仅28%，远低于行业标准
-- AdminDB类过大（50+方法），违反单一职责原则
-- 内存队列存在单点故障风险
-- 部分安全细节需加强（时序攻击、文件上传验证）
-- 前端状态管理简单，可能难以扩展
-
----
-
-## 架构概览
-
-### 项目结构
-
-```
-invoice-master-poc-v2/
-├── packages/
-│   ├── shared/          # 共享库 (74个Python文件)
-│   │   ├── pdf/         # PDF处理
-│   │   ├── ocr/         # OCR封装
-│   │   ├── normalize/   # 字段规范化
-│   │   ├── matcher/     # 字段匹配
-│   │   ├── storage/     # 存储抽象层
-│   │   ├── training/    # 训练组件
-│   │   └── augmentation/# 数据增强
-│   ├── training/        # 训练服务 (26个Python文件)
-│   │   ├── cli/         # 命令行工具
-│   │   ├── yolo/        # YOLO数据集
-│   │   └── processing/  # 任务处理
-│   └── inference/       # 推理服务 (100个Python文件)
-│       ├── web/         # FastAPI应用
-│       ├── pipeline/    # 推理管道
-│       ├── data/        # 数据层
-│       └── cli/         # 命令行工具
-├── frontend/            # React前端 (39个TS/TSX文件)
-│   ├── src/
-│   │   ├── components/  # UI组件
-│   │   ├── hooks/       # React Query hooks
-│   │   └── api/         # API客户端
-└── tests/               # 测试 (97个Python文件)
-```
-
-### 技术栈
-
-| 层级 | 技术 | 评估 |
-|------|------|------|
-| **前端** | React 18 + TypeScript + Vite + TailwindCSS | 现代栈，类型安全 |
-| **API框架** | FastAPI + Uvicorn | 高性能，异步支持 |
-| **数据库** | PostgreSQL + SQLModel | 类型安全ORM |
-| **目标检测** | YOLOv11 (Ultralytics) | 业界标准 |
-| **OCR** | PaddleOCR v5 | 支持瑞典语 |
-| **部署** | Docker + Azure/AWS | 云原生 |
-
----
-
-## 详细模块审查
-
-### 1. Shared Package
-
-#### 1.1 配置模块 (`shared/config.py`)
-
-**文件位置**: `packages/shared/shared/config.py`  
-**代码行数**: 82行
-
-**优点:**
-- 使用环境变量加载配置，无硬编码敏感信息
-- DPI配置统一管理（DEFAULT_DPI = 150）
-- 密码无默认值，强制要求设置
-
-**问题:**
-```python
-# 问题1: 配置分散，缺少验证
-DATABASE = {
-    'host': os.getenv('DB_HOST', '192.168.68.31'),  # 硬编码IP
-    'port': int(os.getenv('DB_PORT', '5432')),
-    # ...
-}
-
-# 问题2: 缺少类型安全
-# 建议使用 Pydantic Settings
-```
-
-**严重程度**: 中  
-**建议**: 使用 Pydantic Settings 集中管理配置，添加验证逻辑
-
----
-
-#### 1.2 存储抽象层 (`shared/storage/`)
-
-**文件位置**: `packages/shared/shared/storage/`  
-**包含文件**: 8个
-
-**优点:**
-- 设计优秀的抽象接口 `StorageBackend`
-- 支持 Local/Azure/S3 多后端
-- 预签名URL支持
-- 异常层次清晰
-
-**代码示例 - 优秀设计:**
-```python
-class StorageBackend(ABC):
-    @abstractmethod
-    def upload(self, local_path: Path, remote_path: str, overwrite: bool = False) -> str:
-        pass
-    
-    @abstractmethod
-    def get_presigned_url(self, remote_path: str, expires_in_seconds: int = 3600) -> str:
-        pass
-```
-
-**问题:**
-- `upload_bytes` 和 `download_bytes` 默认实现使用临时文件，效率较低
-- 缺少文件类型验证（魔术字节检查）
-
-**严重程度**: 低  
-**建议**: 子类可重写bytes方法以提高效率，添加文件类型验证
-
----
-
-#### 1.3 异常定义 (`shared/exceptions.py`)
-
-**文件位置**: `packages/shared/shared/exceptions.py`  
-**代码行数**: 103行
-
-**优点:**
-- 清晰的异常层次结构
-- 所有异常继承自 `InvoiceExtractionError`
-- 包含详细的错误上下文
-
-**代码示例:**
-```python
-class InvoiceExtractionError(Exception):
-    def __init__(self, message: str, details: dict = None):
-        super().__init__(message)
-        self.message = message
-        self.details = details or {}
-```
-
-**评分**: 9/10 - 设计优秀
-
----
-
-#### 1.4 数据增强 (`shared/augmentation/`)
-
-**文件位置**: `packages/shared/shared/augmentation/`  
-**包含文件**: 10个
-
-**功能:**
-- 12种数据增强策略
-- 透视变换、皱纹、边缘损坏、污渍等
-- 高斯模糊、运动模糊、噪声等
-
-**代码质量**: 良好，模块化设计
-
----
-
-### 2. Inference Package
-
-#### 2.1 认证模块 (`inference/web/core/auth.py`)
-
-**文件位置**: `packages/inference/inference/web/core/auth.py`  
-**代码行数**: 61行
-
-**优点:**
-- 使用FastAPI依赖注入模式
-- Token过期检查
-- 记录最后使用时间
-
-**安全问题:**
-```python
-# 问题: 时序攻击风险 (第46行)
-if not admin_db.is_valid_admin_token(x_admin_token):
-    raise HTTPException(status_code=401, detail="Invalid or expired admin token.")
-
-# 建议: 使用 constant-time 比较
-import hmac
-if not hmac.compare_digest(token, expected_token):
-    raise HTTPException(status_code=401, ...)
-```
-
-**严重程度**: 中  
-**建议**: 使用 `hmac.compare_digest()` 进行constant-time比较
-
----
-
-#### 2.2 限流器 (`inference/web/core/rate_limiter.py`)
-
-**文件位置**: `packages/inference/inference/web/core/rate_limiter.py`  
-**代码行数**: 212行
-
-**优点:**
-- 滑动窗口算法实现
-- 线程安全（使用Lock）
-- 支持并发任务限制
-- 可配置的限流策略
-
-**代码示例 - 优秀设计:**
-```python
-@dataclass(frozen=True)
-class RateLimitConfig:
-    requests_per_minute: int = 10
-    max_concurrent_jobs: int = 3
-    min_poll_interval_ms: int = 1000
-```
-
-**问题:**
-- 内存存储，服务重启后限流状态丢失
-- 分布式部署时无法共享限流状态
-
-**严重程度**: 中  
-**建议**: 生产环境使用Redis实现分布式限流
-
----
-
-#### 2.3 AdminDB (`inference/data/admin_db.py`)
-
-**文件位置**: `packages/inference/inference/data/admin_db.py`  
-**代码行数**: 1300+行
-
-**严重问题 - 类过大:**
-```python
-class AdminDB:
-    # Token管理 (5个方法)
-    # 文档管理 (8个方法)
-    # 标注管理 (6个方法)
-    # 训练任务 (7个方法)
-    # 数据集 (6个方法)
-    # 模型版本 (5个方法)
-    # 批处理 (4个方法)
-    # 锁管理 (3个方法)
-    # ... 总计50+方法
-```
-
-**影响:**
-- 违反单一职责原则
-- 难以维护
-- 测试困难
-- 不同领域变更互相影响
-
-**严重程度**: 高  
-**建议**: 按领域拆分为Repository模式
-
-```python
-# 建议重构
-class TokenRepository:
-    def validate(self, token: str) -> bool: ...
-
-class DocumentRepository:
-    def find_by_id(self, doc_id: str) -> Document | None: ...
-
-class TrainingRepository:
-    def create_task(self, config: TrainingConfig) -> TrainingTask: ...
-```
-
----
-
-#### 2.4 文档路由 (`inference/web/api/v1/admin/documents.py`)
-
-**文件位置**: `packages/inference/inference/web/api/v1/admin/documents.py`  
-**代码行数**: 692行
-
-**优点:**
-- FastAPI使用规范
-- 输入验证完善
-- 响应模型定义清晰
-- 错误处理良好
-
-**问题:**
-```python
-# 问题1: 文件上传缺少魔术字节验证 (第127-131行)
-content = await file.read()
-# 建议: 验证PDF魔术字节 %PDF
-
-# 问题2: 路径遍历风险 (第494-498行)
-filename = Path(document.file_path).name
-# 建议: 使用 Path.name 并验证路径范围
-
-# 问题3: 函数过长，职责过多
-# _convert_pdf_to_images 函数混合了PDF处理和存储操作
-```
-
-**严重程度**: 中  
-**建议**: 添加文件类型验证，拆分大函数
-
----
-
-#### 2.5 推理服务 (`inference/web/services/inference.py`)
-
-**文件位置**: `packages/inference/inference/web/services/inference.py`  
-**代码行数**: 361行
-
-**优点:**
-- 支持动态模型加载
-- 懒加载初始化
-- 模型热重载支持
-
-**问题:**
-```python
-# 问题1: 混合业务逻辑和技术实现
-def process_image(self, image_path: Path, ...) -> ServiceResult:
-    # 1. 技术细节: 图像解码
-    # 2. 业务逻辑: 字段提取
-    # 3. 技术细节: 模型推理
-    # 4. 业务逻辑: 结果验证
-
-# 问题2: 可视化方法重复加载模型
-model = YOLO(str(self.model_config.model_path))  # 第316行
-# 应该在初始化时加载，避免重复IO
-
-# 问题3: 临时文件未使用上下文管理器
-temp_path = results_dir / f"{doc_id}_temp.png"
-# 建议使用 tempfile 上下文管理器
-```
-
-**严重程度**: 中  
-**建议**: 引入领域层和适配器模式，分离业务和技术逻辑
-
----
-
-#### 2.6 异步队列 (`inference/web/workers/async_queue.py`)
-
-**文件位置**: `packages/inference/inference/web/workers/async_queue.py`  
-**代码行数**: 213行
-
-**优点:**
-- 线程安全实现
-- 优雅关闭支持
-- 任务状态跟踪
-
-**严重问题:**
-```python
-# 问题: 内存队列，服务重启丢失任务 (第42行)
-self._queue: Queue[AsyncTask] = Queue(maxsize=max_size)
-
-# 问题: 无法水平扩展
-# 问题: 任务持久化困难
-```
-
-**严重程度**: 高  
-**建议**: 使用Redis/RabbitMQ持久化队列
-
----
-
-### 3. Training Package
-
-#### 3.1 整体评估
-
-**文件数量**: 26个Python文件
-
-**优点:**
-- CLI工具设计良好
-- 双池协调器（CPU + GPU）设计优秀
-- 数据增强策略丰富
-
-**总体评分**: 8/10
-
----
-
-### 4. Frontend
-
-#### 4.1 API客户端 (`frontend/src/api/client.ts`)
-
-**文件位置**: `frontend/src/api/client.ts`  
-**代码行数**: 42行
-
-**优点:**
-- Axios配置清晰
-- 请求/响应拦截器
-- 认证token自动添加
-
-**问题:**
-```typescript
-// 问题1: Token存储在localStorage，存在XSS风险
-const token = localStorage.getItem('admin_token')
-
-// 问题2: 401错误处理不完整
-if (error.response?.status === 401) {
-  console.warn('Authentication required...')
-  // 应该触发重新登录或token刷新
-}
-```
-
-**严重程度**: 中  
-**建议**: 考虑使用http-only cookie存储token，完善错误处理
-
----
-
-#### 4.2 Dashboard组件 (`frontend/src/components/Dashboard.tsx`)
-
-**文件位置**: `frontend/src/components/Dashboard.tsx`  
-**代码行数**: 301行
-
-**优点:**
-- React hooks使用规范
-- 类型定义清晰
-- UI响应式设计
-
-**问题:**
-```typescript
-// 问题1: 硬编码的进度值
-const getAutoLabelProgress = (doc: DocumentItem): number | undefined => {
-  if (doc.auto_label_status === 'running') {
-    return 45  // 硬编码！
-  }
-  // ...
-}
-
-// 问题2: 搜索功能未实现
-// 没有onChange处理
-
-// 问题3: 缺少错误边界处理
-// 组件应该包裹在Error Boundary中
-```
-
-**严重程度**: 低  
-**建议**: 实现真实的进度获取，添加搜索功能
-
----
-
-#### 4.3 整体评估
-
-**优点:**
-- TypeScript类型安全
-- React Query状态管理
-- TailwindCSS样式一致
-
-**问题:**
-- 缺少错误边界
-- 部分功能硬编码
-- 缺少单元测试
-
-**总体评分**: 7.5/10
-
----
-
-### 5. Tests
-
-#### 5.1 测试统计
-
-- **测试文件数**: 97个
-- **测试总数**: 1,601个
-- **测试覆盖率**: 28%
-
-#### 5.2 覆盖率分析
-
-| 模块 | 估计覆盖率 | 状态 |
-|------|-----------|------|
-| `shared/` | 35% | 偏低 |
-| `inference/web/` | 25% | 偏低 |
-| `inference/pipeline/` | 20% | 严重不足 |
-| `training/` | 30% | 偏低 |
-| `frontend/` | 15% | 严重不足 |
-
-#### 5.3 测试质量问题
-
-**优点:**
-- 使用了pytest框架
-- 有conftest.py配置
-- 部分集成测试
-
-**问题:**
-- 覆盖率远低于行业标准（80%）
-- 缺少端到端测试
-- 部分测试可能过于简单
-
-**严重程度**: 高  
-**建议**: 制定测试计划，优先覆盖核心业务逻辑
-
----
-
-## 代码质量问题
-
-### 高优先级问题
-
-| 问题 | 位置 | 影响 | 建议 |
-|------|------|------|------|
-| AdminDB类过大 | `inference/data/admin_db.py` | 维护困难 | 拆分为Repository模式 |
-| 内存队列单点故障 | `inference/web/workers/async_queue.py` | 任务丢失 | 使用Redis持久化 |
-| 测试覆盖率过低 | 全项目 | 代码风险 | 提升至60%+ |
-
-### 中优先级问题
-
-| 问题 | 位置 | 影响 | 建议 |
-|------|------|------|------|
-| 时序攻击风险 | `inference/web/core/auth.py` | 安全漏洞 | 使用hmac.compare_digest |
-| 限流器内存存储 | `inference/web/core/rate_limiter.py` | 分布式问题 | 使用Redis |
-| 配置分散 | `shared/config.py` | 难以管理 | 使用Pydantic Settings |
-| 文件上传验证不足 | `inference/web/api/v1/admin/documents.py` | 安全风险 | 添加魔术字节验证 |
-| 推理服务混合职责 | `inference/web/services/inference.py` | 难以测试 | 分离业务和技术逻辑 |
-
-### 低优先级问题
-
-| 问题 | 位置 | 影响 | 建议 |
-|------|------|------|------|
-| 前端搜索未实现 | `frontend/src/components/Dashboard.tsx` | 功能缺失 | 实现搜索功能 |
-| 硬编码进度值 | `frontend/src/components/Dashboard.tsx` | 用户体验 | 获取真实进度 |
-| Token存储方式 | `frontend/src/api/client.ts` | XSS风险 | 考虑http-only cookie |
-
----
-
-## 安全风险分析
-
-### 已识别的安全风险
-
-#### 1. 时序攻击 (中风险)
-
-**位置**: `inference/web/core/auth.py:46`
-
-```python
-# 当前实现（有风险）
-if not admin_db.is_valid_admin_token(x_admin_token):
-    raise HTTPException(status_code=401, ...)
-
-# 安全实现
-import hmac
-if not hmac.compare_digest(token, expected_token):
-    raise HTTPException(status_code=401, ...)
-```
-
-#### 2. 文件上传验证不足 (中风险)
-
-**位置**: `inference/web/api/v1/admin/documents.py:127-131`
-
-```python
-# 建议添加魔术字节验证
-ALLOWED_EXTENSIONS = {".pdf"}
-MAX_FILE_SIZE = 10 * 1024 * 1024
-
-if not content.startswith(b"%PDF"):
-    raise HTTPException(400, "Invalid PDF file format")
-```
-
-#### 3. 路径遍历风险 (中风险)
-
-**位置**: `inference/web/api/v1/admin/documents.py:494-498`
-
-```python
-# 建议实现
-from pathlib import Path
-
-def get_safe_path(filename: str, base_dir: Path) -> Path:
-    safe_name = Path(filename).name
-    full_path = (base_dir / safe_name).resolve()
-    if not full_path.is_relative_to(base_dir):
-        raise HTTPException(400, "Invalid file path")
-    return full_path
-```
-
-#### 4. CORS配置 (低风险)
-
-**位置**: FastAPI中间件配置
-
-```python
-# 建议生产环境配置
-ALLOWED_ORIGINS = [
-    "http://localhost:5173",
-    "https://your-domain.com",
-]
-```
-
-#### 5. XSS风险 (低风险)
-
-**位置**: `frontend/src/api/client.ts:13`
-
-```typescript
-// 当前实现
-const token = localStorage.getItem('admin_token')
-
-// 建议考虑
-// 使用http-only cookie存储敏感token
-```
-
-### 安全评分
-
-| 类别 | 评分 | 说明 |
-|------|------|------|
-| 认证 | 8/10 | 基础良好，需加强时序攻击防护 |
-| 输入验证 | 7/10 | 基本验证到位，需加强文件验证 |
-| 数据保护 | 8/10 | 无敏感信息硬编码 |
-| 传输安全 | 8/10 | 使用HTTPS（生产环境） |
-| 总体 | 7.5/10 | 基础安全良好，需加强细节 |
-
----
-
-## 性能问题
-
-### 已识别的性能问题
-
-#### 1. 重复模型加载
-
-**位置**: `inference/web/services/inference.py:316`
-
-```python
-# 问题: 每次可视化都重新加载模型
-model = YOLO(str(self.model_config.model_path))
-
-# 建议: 复用已加载的模型
-```
-
-#### 2. 临时文件处理
-
-**位置**: `shared/storage/base.py:178-203`
-
-```python
-# 问题: bytes操作使用临时文件
-def upload_bytes(self, data: bytes, ...):
-    with tempfile.NamedTemporaryFile(delete=False) as f:
-        f.write(data)
-        temp_path = Path(f.name)
-    # ...
-
-# 建议: 子类重写为直接上传
-```
-
-#### 3. 数据库查询优化
-
-**位置**: `inference/data/admin_db.py`
-
-```python
-# 问题: N+1查询风险
-for doc in documents:
-    annotations = db.get_annotations_for_document(str(doc.document_id))
-    # ...
-
-# 建议: 使用join预加载
-```
-
-### 性能评分
-
-| 类别 | 评分 | 说明 |
-|------|------|------|
-| 响应时间 | 8/10 | 异步处理良好 |
-| 资源使用 | 7/10 | 有优化空间 |
-| 可扩展性 | 7/10 | 内存队列限制 |
-| 并发处理 | 8/10 | 线程池设计良好 |
-| 总体 | 7.5/10 | 良好，有优化空间 |
-
----
-
-## 改进建议
-
-### 立即执行 (本周)
-
-1. **拆分AdminDB**
-   - 创建 `repositories/` 目录
-   - 按领域拆分：TokenRepository, DocumentRepository, TrainingRepository
-   - 估计工时: 2天
-
-2. **修复安全漏洞**
-   - 添加 `hmac.compare_digest()` 时序攻击防护
-   - 添加文件魔术字节验证
-   - 估计工时: 0.5天
-
-3. **提升测试覆盖率**
-   - 优先测试 `inference/pipeline/`
-   - 添加API集成测试
-   - 目标: 从28%提升至50%
-   - 估计工时: 3天
-
-### 短期执行 (本月)
-
-4. **引入消息队列**
-   - 添加Redis服务
-   - 使用Celery替换内存队列
-   - 估计工时: 3天
-
-5. **统一配置管理**
-   - 使用 Pydantic Settings
-   - 集中验证逻辑
-   - 估计工时: 1天
-
-6. **添加缓存层**
-   - Redis缓存热点数据
-   - 缓存文档、模型配置
-   - 估计工时: 2天
-
-### 长期执行 (本季度)
-
-7. **数据库读写分离**
-   - 配置主从数据库
-   - 读操作使用从库
-   - 估计工时: 3天
-
-8. **事件驱动架构**
-   - 引入事件总线
-   - 解耦模块依赖
-   - 估计工时: 5天
-
-9. **前端优化**
-   - 添加错误边界
-   - 实现真实搜索功能
-   - 添加E2E测试
-   - 估计工时: 3天
-
----
-
-## 总结与评分
-
-### 各维度评分
-
-| 维度 | 评分 | 权重 | 加权得分 |
-|------|------|------|----------|
-| **代码质量** | 7.5/10 | 20% | 1.5 |
-| **安全性** | 7.5/10 | 20% | 1.5 |
-| **可维护性** | 8/10 | 15% | 1.2 |
-| **测试覆盖** | 5/10 | 15% | 0.75 |
-| **性能** | 7.5/10 | 15% | 1.125 |
-| **文档** | 8/10 | 10% | 0.8 |
-| **架构设计** | 8/10 | 5% | 0.4 |
-| **总体** | **7.3/10** | 100% | **7.275** |
-
-### 关键结论
-
-1. **架构设计优秀**: Monorepo + 三包分离架构清晰，便于维护和扩展
-2. **代码质量良好**: 类型注解完善，文档详尽，结构清晰
-3. **安全基础良好**: 没有严重的安全漏洞，基础防护到位
-4. **测试是短板**: 28%覆盖率是最大风险点
-5. **生产就绪**: 经过小幅改进后可以投入生产使用
-
-### 下一步行动
-
-| 优先级 | 任务 | 预计工时 | 影响 |
-|--------|------|----------|------|
-| 高 | 拆分AdminDB | 2天 | 提升可维护性 |
-| 高 | 引入Redis队列 | 3天 | 解决任务丢失问题 |
-| 高 | 提升测试覆盖率 | 5天 | 降低代码风险 |
-| 中 | 修复安全漏洞 | 0.5天 | 提升安全性 |
-| 中 | 统一配置管理 | 1天 | 减少配置错误 |
-| 低 | 前端优化 | 3天 | 提升用户体验 |
-
----
-
-## 附录
-
-### 关键文件清单
-
-| 文件 | 职责 | 问题 |
-|------|------|------|
-| `inference/data/admin_db.py` | 数据库操作 | 类过大，需拆分 |
-| `inference/web/services/inference.py` | 推理服务 | 混合业务和技术 |
-| `inference/web/workers/async_queue.py` | 异步队列 | 内存存储，易丢失 |
-| `inference/web/core/scheduler.py` | 任务调度 | 缺少统一协调 |
-| `shared/shared/config.py` | 共享配置 | 分散管理 |
-
-### 参考资源
-
-- [Repository Pattern](https://martinfowler.com/eaaCatalog/repository.html)
-- [Celery Documentation](https://docs.celeryproject.org/)
-- [Pydantic Settings](https://docs.pydantic.dev/latest/concepts/pydantic_settings/)
-- [FastAPI Best Practices](https://fastapi.tiangolo.com/tutorial/bigger-applications/)
-- [OWASP Top 10](https://owasp.org/www-project-top-ten/)
-
----
-
-**报告生成时间**: 2026-02-01  
-**审查工具**: Claude Code + AST-grep + LSP

COMMERCIALIZATION_ANALYSIS_REPORT.md

@@ -26,7 +26,7 @@
 
 ### 项目现状
 
-Invoice Master是一个基于YOLOv11 + PaddleOCR的瑞典发票字段自动提取系统，具备以下核心能力：
+Invoice Master是一个基于YOLO26 + PaddleOCR的瑞典发票字段自动提取系统，具备以下核心能力：
 
 | 指标 | 数值 | 评估 |
 |------|------|------|

INFERENCE_ANALYSIS_REPORT.md

@@ -0,0 +1,314 @@
+# Inference Analysis Report
+
+Date: 2026-02-11
+Sample: 39 PDFs (diverse sizes from 1783 total), invoice-sm120 environment
+
+## Executive Summary
+
+| Metric | Value |
+|--------|-------|
+| Total PDFs tested | 39 |
+| Successful responses | 35 (89.7%) |
+| Timeouts (>120s) | 4 (10.3%) |
+| Pure fallback (all fields conf=0.500) | 15/35 (42.9%) |
+| Full extraction (all expected fields) | 6/35 (17.1%) |
+| supplier_org_number extraction rate | 0% |
+| InvoiceDate extraction rate | 31.4% |
+| OCR extraction rate | 31.4% |
+
+**Root Cause**: A critical DPI mismatch bug causes 43% of documents to lose all YOLO-detected field data, falling back to inaccurate regex patterns.
+
+---
+
+## Problem #1 (CRITICAL): DPI Mismatch - Field Extraction Failures
+
+### Symptom
+- 15/35 documents (43%) have ALL extracted fields at confidence=0.500 (fallback)
+- YOLO detects fields correctly (6+ detections at conf 0.8-0.97) but text extraction returns nothing
+- Examples: `4f822b0d` has 6 YOLO detections but only 1 field extracted via fallback
+
+### Root Cause
+**DPI not passed from pipeline to FieldExtractor** causing 2x coordinate scaling error.
+
+```
+pipeline.py:237  ->  self.extractor = FieldExtractor(ocr_lang=ocr_lang, use_gpu=use_gpu)
+                     ^^^ DPI NOT PASSED! Defaults to 300
+```
+
+The chain:
+1. `shared/config.py:22` defines `DEFAULT_DPI = 150`
+2. `InferencePipeline.__init__()` receives `dpi=150` from `ModelConfig`
+3. PDF rendered at **150 DPI** -> YOLO detections in 150 DPI pixel coordinates
+4. `FieldExtractor` defaults to `dpi=300` (never receives the actual 150)
+5. Coordinate conversion: `scale = 72 / self.dpi` = `72/300 = 0.24` instead of `72/150 = 0.48`
+6. Bounding boxes are **halved** in PDF point space -> no tokens match -> empty extraction
+7. Fallback regex triggers with conf=0.500
+
+### Fix
+**File**: `packages/backend/backend/pipeline/pipeline.py`, line 237
+
+```python
+# BEFORE (broken):
+self.extractor = FieldExtractor(ocr_lang=ocr_lang, use_gpu=use_gpu)
+
+# AFTER (fixed):
+self.extractor = FieldExtractor(ocr_lang=ocr_lang, use_gpu=use_gpu, dpi=dpi)
+```
+
+### Impact
+This single-line fix will recover ~43% of documents from degraded fallback to proper YOLO+OCR extraction.
+
+---
+
+## Problem #2 (HIGH): Fallback Amount Extraction Grabs Wrong Values
+
+### Symptom
+- 3 documents extracted Amount=1.00 when actual amounts are 7500.00, etc.
+- Fallback regex matches table column header "Summa" followed by row quantity "1,00" instead of total
+
+### Example
+Document `2b7e4103` (Astra Football Club):
+- Actual amount: **7 500,00 SEK**
+- Extracted: **1.00** (from "Summa 1" where "1" is the article number in the next row)
+
+### Root Cause
+The fallback Amount regex in `pipeline.py:676`:
+```python
+r'(?:att\s*betala|summa|total|belopp)\s*[:.]?\s*([\d\s,\.]+)\s*(?:SEK|kr)?'
+```
+matches "Summa" (column header) followed by "1" (first data in next row), because PaddleOCR produces tokens in position order. The greedy `[\d\s,\.]` captures "1" and stops at "Medlemsavgift".
+
+### Fix
+**File**: `packages/backend/backend/pipeline/pipeline.py`, lines 674-688
+
+1. Require minimum amount value in fallback (e.g., > 10.00)
+2. Require the matched amount to have a decimal separator (`,` or `.`) to avoid matching integers
+3. Prefer "ATT BETALA" over "Summa" as the keyword (less ambiguous)
+
+```python
+'Amount': [
+    r'(?:att\s+betala)\s*[:.]?\s*([\d\s]+[,\.]\d{2})\s*(?:SEK|kr)?',
+    r'([\d\s]+[,\.]\d{2})\s*(?:SEK|kr)\s*$',
+    r'(?:summa|total|belopp)\s*[:.]?\s*([\d\s]+[,\.]\d{2})\s*(?:SEK|kr)?',
+],
+```
+
+---
+
+## Problem #3 (HIGH): Fallback Bankgiro Regex False Positives
+
+### Symptom
+- Document `2b7e4103` extracts Bankgiro=2546-1610 but the actual document has NO Bankgiro
+- The document has Plusgiro=2131575-9 and Org.nr=802546-1610
+
+### Root Cause
+Fallback Bankgiro regex in `pipeline.py:681`:
+```python
+r'(\d{4}[-\s]\d{4})\s*(?=\s|$)'
+```
+matches the LAST 8 digits of org number "802546-1610" as "2546-1610".
+
+### Fix
+**File**: `packages/backend/backend/pipeline/pipeline.py`, line 681
+
+Add negative lookbehind to avoid matching within longer numbers:
+```python
+'Bankgiro': [
+    r'(?:bankgiro|bg)\s*[:.]?\s*(\d{3,4}[-\s]?\d{4})',
+    r'(?<!\d)(\d{3,4}[-\s]\d{4})(?!\d)',  # Must not be preceded/followed by digits
+],
+```
+
+---
+
+## Problem #4 (MEDIUM): OCR Number Minimum 5-Digit Requirement
+
+### Symptom
+- Document `2b7e4103` has OCR=3046 (4 digits) which is valid but rejected by normalizer
+- `OcrNumberNormalizer` requires minimum 5 digits
+
+### Root Cause
+**File**: `packages/backend/backend/pipeline/normalizers/ocr_number.py`, line 32:
+```python
+if len(digits) < 5:
+    return NormalizationResult.failure(f"Too few digits for OCR: {len(digits)}")
+```
+
+Swedish OCR numbers can be 2-25 digits. The 5-digit minimum is too restrictive.
+
+### Fix
+Lower minimum to 2 digits (or possibly 1 for very short OCR references):
+```python
+if len(digits) < 2:
+    return NormalizationResult.failure(f"Too few digits for OCR: {len(digits)}")
+```
+
+---
+
+## Problem #5 (MEDIUM): InvoiceNumber Extracts Year (2025, 2026)
+
+### Symptom
+- 2 documents extract year as invoice number: "2025", "2026"
+- `dc35ee8e`: actual invoice number visible in PDF but normalizer picks up year
+- `56cabf73`: InvoiceNumber=2026
+
+### Root Cause
+**File**: `packages/backend/backend/pipeline/normalizers/invoice_number.py`, lines 54-72
+
+The "Pattern 3: Short digit sequence" strategy prefers shorter sequences. When the YOLO bbox contains both the year "2025" and the actual invoice number, the shorter "2025" (4 digits) wins over a longer sequence.
+
+### Fix
+Add year exclusion to Pattern 3:
+```python
+for seq in digit_sequences:
+    if len(seq) == 8 and seq.startswith("20"):
+        continue  # Skip YYYYMMDD dates
+    if len(seq) == 4 and seq.startswith("20"):
+        continue  # Skip year-only values (2024, 2025, 2026)
+    if len(seq) > 10:
+        continue
+    valid_sequences.append(seq)
+```
+
+---
+
+## Problem #6 (MEDIUM): InvoiceNumber vs OCR Mismatch
+
+### Symptom
+- 5 documents show InvoiceNumber different from OCR number
+- Example: `87f470da` InvoiceNumber=852460234111905 vs OCR=524602341119055
+- Example: `8b0674be` InvoiceNumber=508021404131 vs OCR=50802140413
+
+### Root Cause
+These are legitimate: InvoiceNumber and OCR are detected from DIFFERENT YOLO bounding boxes (different regions of the invoice). The InvoiceNumber normalizer picks a shorter sequence from the invoice_number bbox, while the OCR normalizer extracts from the ocr_number bbox. Cross-validation from payment_line should reconcile these but cross-validation isn't running (0 documents show cross_validation results).
+
+### Diagnosis Needed
+Check why cross-validation / payment_line parsing isn't populating `result.cross_validation` even when payment_line is extracted.
+
+---
+
+## Problem #7 (MEDIUM): supplier_org_number 0% Extraction Rate
+
+### Symptom
+- 0/35 documents extract supplier_org_number
+- YOLO detects supplier_org_number in many documents (visible in detection classes)
+- When extracted, the field appears as `supplier_organisation_number` (different name)
+
+### Root Cause
+This is actually a reporting issue. The API returns the field as `supplier_organisation_number` (full spelling) from `CLASS_TO_FIELD` mapping, but the analysis expected `supplier_org_number`. Looking at the actual data, 8/35 documents DO have `supplier_organisation_number` extracted.
+
+However, the underlying issue is that even when YOLO detects `supplier_org_number`, the DPI bug prevents text extraction for text PDFs.
+
+### Fix
+Already addressed by Problem #1 (DPI fix). Additionally, ensure consistent field naming in API documentation.
+
+---
+
+## Problem #8 (LOW): Timeout Failures (4/39 documents)
+
+### Symptom
+- 4 PDFs timed out at 120 seconds
+- File sizes: 89KB, 169KB, 239KB, 970KB (not correlated with size)
+
+### Root Cause
+Likely multi-page PDFs or PDFs with complex layouts requiring extensive OCR. The 120s timeout in the test script may be too short for multi-page documents + full-page OCR fallback.
+
+### Fix
+1. Increase API timeout for multi-page PDFs
+2. Add page limit or early termination for very large documents
+3. Log page count in response to correlate with processing time
+
+---
+
+## Problem #9 (LOW): Non-Invoice Documents in Dataset
+
+### Symptom
+- `dccf6655`: 0 detections, 0 fields - this is a screenshot of UI buttons, NOT an invoice
+
+### Fix
+Add document classification as a pre-processing step to reject non-invoice documents before running the expensive YOLO + OCR pipeline.
+
+---
+
+## Problem #10 (LOW): InvoiceDueDate Before InvoiceDate
+
+### Symptom
+- Document `11de4d07`: InvoiceDate=2026-01-16, InvoiceDueDate=2025-12-01
+- Due date is BEFORE invoice date, which is illogical
+
+### Root Cause
+Either the date normalizer swapped the values, or the YOLO model detected the wrong region for one of the dates. The DPI bug (Problem #1) may also affect date extraction from the correct regions.
+
+### Fix
+Add post-extraction validation: if InvoiceDueDate < InvoiceDate, either swap them or flag for review.
+
+---
+
+## Priority Fix Order
+
+| Priority | Fix | Impact | Effort |
+|----------|-----|--------|--------|
+| 1 | DPI mismatch (Problem #1) | 43% of docs recovered | 1 line change |
+| 2 | Fallback amount regex (Problem #2) | 3+ docs with wrong amounts | Small regex fix |
+| 3 | Fallback bankgiro regex (Problem #3) | False positive bankgiro | Small regex fix |
+| 4 | OCR min digits (Problem #4) | Short OCR numbers supported | 1 line change |
+| 5 | Year as InvoiceNumber (Problem #5) | 2+ docs | Small logic add |
+| 6 | Date validation (Problem #10) | Logical consistency | Small validation add |
+| 7 | Cross-validation (Problem #6) | Better field reconciliation | Investigation needed |
+| 8 | Timeouts (Problem #8) | 4 docs | Config change |
+| 9 | Document classification (Problem #9) | Filter non-invoices | Feature addition |
+
+---
+
+## Re-run Expected After Fix #1
+
+After fixing the DPI mismatch alone, re-running the same 39 PDFs should show:
+- Pure fallback rate dropping from 43% to near 0%
+- InvoiceDate extraction rate improving from 31% to ~70%+
+- OCR extraction rate improving from 31% to ~60%+
+- Average confidence scores increasing significantly
+- supplier_organisation_number extraction improving from 23% to ~60%+
+
+---
+
+## Detailed Per-PDF Results Summary
+
+| PDF | Size | Time | Fields | Confidence | Issues |
+|-----|------|------|--------|------------|--------|
+| dccf6655 | 10KB | 17s | 0/0 | - | Not an invoice |
+| 4f822b0d | 183KB | 37s | 1/6 | ALL 0.500 | DPI bug: 6 detections, 5 lost |
+| d4af7848 | 55KB | 41s | 1/6 | ALL 0.500 | DPI bug: 6 detections, 5 lost |
+| 19533483 | 262KB | 39s | 1/9 | ALL 0.500 | DPI bug: 9 detections, 8 lost |
+| 2b7e4103 | 25KB | 47s | 3/6 | ALL 0.500 | DPI bug + Amount=1.00 wrong |
+| 7717d293 | 34KB | 16s | 3/6 | ALL 0.500 | DPI bug + Amount=1.00 wrong |
+| 3226ac59 | 66KB | 42s | 3/5 | ALL 0.500 | DPI bug + Amount=1.00 wrong |
+| 0553e5c2 | 31KB | 18s | 3/6 | ALL 0.500 | DPI bug + BG=5000-0000 suspicious |
+| 32e90db8 | 136KB | 40s | 3/7 | Mixed | Amount=2026.00 (year?) |
+| dc35ee8e | 567KB | 83s | 7/9 | YOLO | InvoiceNumber=2025 (year) |
+| 56cabf73 | 67KB | 19s | 5/6 | YOLO | InvoiceNumber=2026 (year) |
+| 87f470da | 784KB | 42s | 9/14 | YOLO | InvNum vs OCR mismatch |
+| 11de4d07 | 356KB | 68s | 5/3 | Mixed | DueDate < InvoiceDate |
+| 0f9047a9 | 415KB | 22s | 8/6 | YOLO | Good extraction |
+| 9d0b793c | 286KB | 18s | 8/8 | YOLO | Good extraction |
+| 5604d375 | 915KB | 51s | 9/10 | YOLO | Good extraction |
+| 87f470da | 784KB | 42s | 9/14 | YOLO | Good extraction |
+| f40fd418 | 523KB | 90s | 9/9 | YOLO | Good extraction |
+
+---
+
+## Field Extraction Rate Summary
+
+| Field | Present | Missing | Rate | Avg Conf |
+|-------|---------|---------|------|----------|
+| Bankgiro | 32 | 3 | 91.4% | 0.681 |
+| InvoiceNumber | 28 | 7 | 80.0% | 0.695 |
+| Amount | 27 | 8 | 77.1% | 0.726 |
+| InvoiceDueDate | 13 | 22 | 37.1% | 0.883 |
+| InvoiceDate | 11 | 24 | 31.4% | 0.879 |
+| OCR | 11 | 24 | 31.4% | 0.900 |
+| customer_number | 11 | 24 | 31.4% | 0.926 |
+| payment_line | 9 | 26 | 25.7% | 0.938 |
+| Plusgiro | 3 | 32 | 8.6% | 0.948 |
+| supplier_org_number | 0 | 35 | 0.0% | 0.000 |
+
+Note: Fields with high confidence but low extraction rate (InvoiceDate 0.879, OCR 0.900, payment_line 0.938) indicate the DPI bug: when extraction works (via YOLO), confidence is high. The low rate is because most documents fall back and these fields have no fallback regex pattern.

LABELING_STRATEGY_ANALYSIS.md

@@ -0,0 +1,257 @@
+# Semi-Automatic Labeling Strategy Analysis
+
+## 1. Current Pipeline Overview
+
+```
+CSV (field values)
+  |
+  v
+Autolabel CLI
+  |- PDF render (300 DPI)
+  |- Text extraction (PDF text layer or PaddleOCR)
+  |- FieldMatcher.find_matches() [5 strategies]
+  |   |- ExactMatcher (priority 1)
+  |   |- ConcatenatedMatcher (multi-token)
+  |   |- FuzzyMatcher (Amount, dates only)
+  |   |- SubstringMatcher (prevents false positives)
+  |   |- FlexibleDateMatcher (fallback)
+  |
+  |- AnnotationGenerator
+  |   |- PDF points -> pixels
+  |   |- expand_bbox() [field-specific strategy]
+  |   |- pixels -> YOLO normalized (0-1)
+  |   |- Save to database
+  |
+  v
+DBYOLODataset (training)
+  |- Load images + bboxes from DB
+  |- Re-apply expand_bbox()
+  |- YOLO training
+  |
+  v
+Inference
+  |- YOLO detect -> pixel bboxes
+  |- Crop region -> OCR extract text
+  |- Normalize & validate
+```
+
+---
+
+## 2. Current Expansion Strategy Analysis
+
+### 2.1 Field-Specific Parameters
+
+| Field | Scale X | Scale Y | Extra Top | Extra Left | Extra Right | Max Pad X | Max Pad Y |
+|---|---|---|---|---|---|---|---|
+| ocr_number | 1.15 | 1.80 | 0.60 | - | - | 50 | 140 |
+| bankgiro | 1.45 | 1.35 | - | 0.80 | - | 160 | 90 |
+| plusgiro | 1.45 | 1.35 | - | 0.80 | - | 160 | 90 |
+| invoice_date | 1.25 | 1.55 | 0.40 | - | - | 80 | 110 |
+| invoice_due_date | 1.30 | 1.65 | 0.45 | 0.35 | - | 100 | 120 |
+| amount | 1.20 | 1.35 | - | - | 0.30 | 70 | 80 |
+| invoice_number | 1.20 | 1.50 | 0.40 | - | - | 80 | 100 |
+| supplier_org_number | 1.25 | 1.40 | 0.30 | 0.20 | - | 90 | 90 |
+| customer_number | 1.25 | 1.45 | 0.35 | 0.25 | - | 90 | 100 |
+| payment_line | 1.10 | 1.20 | - | - | - | 40 | 40 |
+
+### 2.2 Design Rationale
+
+The expansion is designed based on Swedish invoice layout patterns:
+- **Dates**: Labels ("Fakturadatum") typically sit **above** the value -> extra top
+- **Giro accounts**: Prefix ("BG:", "PG:") sits **to the left** -> extra left
+- **Amount**: Currency suffix ("SEK", "kr") to the **right** -> extra right
+- **Payment line**: Machine-readable, self-contained -> minimal expansion
+
+### 2.3 Strengths
+
+1. **Field-specific directional expansion** - matches Swedish invoice conventions
+2. **Max padding caps** - prevents runaway expansion into neighboring fields
+3. **Center-point scaling** with directional compensation - geometrically sound
+4. **Image boundary clamping** - prevents out-of-bounds coordinates
+
+### 2.4 Potential Issues
+
+| Issue | Risk Level | Description |
+|---|---|---|
+| Over-expansion | HIGH | OCR number 1.80x Y-scale could capture adjacent fields |
+| Inconsistent training vs inference bbox | MEDIUM | Model trained on expanded boxes, inference returns raw detection |
+| No expansion at inference OCR crop | MEDIUM | Detected bbox may clip text edges without post-expansion |
+| Max padding in pixels vs DPI-dependent | LOW | 140px at 300DPI != 140px at 150DPI |
+
+---
+
+## 3. Industry Best Practices (Research Findings)
+
+### 3.1 Labeling: Tight vs. Loose Bounding Boxes
+
+**Consensus**: Annotate **tight bounding boxes around the value text only**.
+
+- FUNSD/CORD benchmarks annotate keys and values as **separate entities**
+- Loose boxes "introduce background noise and can mislead the model" (V7 Labs, LabelVisor)
+- IoU discrepancies from loose boxes degrade mAP during training
+
+**However**, for YOLO + OCR pipelines, tight-only creates a problem:
+- YOLO predicts slightly imprecise boxes (typical IoU 0.7-0.9)
+- If the predicted box clips even slightly, OCR misses characters
+- Solution: **Label tight, expand at inference** OR **label with controlled padding**
+
+### 3.2 The Two Dominant Strategies
+
+**Strategy A: Tight Label + Inference-Time Expansion** (Recommended by research)
+```
+Label:     [  2024-01-15  ]     (tight around value)
+Inference: [ [2024-01-15] ] + pad -> OCR
+```
+- Clean, consistent annotations
+- Requires post-detection padding before OCR crop
+- Used by: Microsoft Document Intelligence, Nanonets
+
+**Strategy B: Expanded Label at Training Time** (Current project approach)
+```
+Label:     [  Fakturadatum: 2024-01-15  ]  (includes context)
+Inference: YOLO detects full region -> OCR extracts from region
+```
+- Model learns spatial context (label + value)
+- Larger, more variable boxes
+- OCR must filter out label text from extracted content
+
+### 3.3 OCR Padding Requirements
+
+**Tesseract**: Requires ~10px white border for reliable segmentation (PSM 7-10).
+**PaddleOCR**: `det_db_unclip_ratio` parameter (default 1.5) controls detection expansion.
+
+Key insight: Even after YOLO detection, OCR engines need some padding around text to work reliably.
+
+### 3.4 State-of-the-Art Comparison
+
+| System | Bbox Strategy | Field Definition |
+|---|---|---|
+| **LayoutLM** | Word-level bboxes from OCR | Token classification (BIO tagging) |
+| **Donut** | No bboxes (end-to-end) | Internal attention mechanism |
+| **Microsoft DocAI** | Field-level, tight | Post-expansion for OCR |
+| **YOLO + OCR (this project)** | Field-level, expanded | Field-specific directional expansion |
+
+---
+
+## 4. Recommendations
+
+### 4.1 Short-Term (Current Architecture)
+
+#### A. Add Inference-Time OCR Padding
+Currently, the detected bbox is sent directly to OCR. Add a small uniform padding (5-10%) before cropping for OCR:
+
+```python
+# In field_extractor.py, before OCR crop:
+pad_ratio = 0.05  # 5% expansion
+w_pad = (x2 - x1) * pad_ratio
+h_pad = (y2 - y1) * pad_ratio
+crop_x1 = max(0, x1 - w_pad)
+crop_y1 = max(0, y1 - h_pad)
+crop_x2 = min(img_w, x2 + w_pad)
+crop_y2 = min(img_h, y2 + h_pad)
+```
+
+#### B. Reduce Training-Time Expansion Ratios
+Current ratios (especially OCR number 1.80x Y, Bankgiro 1.45x X) are aggressive. Proposed reduction:
+
+| Field | Current Scale Y | Proposed Scale Y | Rationale |
+|---|---|---|---|
+| ocr_number | 1.80 | 1.40 | 1.80 is too aggressive, captures neighbors |
+| bankgiro | 1.35 | 1.25 | Reduce vertical over-expansion |
+| invoice_due_date | 1.65 | 1.45 | Tighten vertical |
+
+Principle: **shift expansion work from training-time to inference-time**.
+
+#### C. Add Label Visualization Quality Check
+Before training, sample 50-100 annotated images and visually inspect:
+- Are expanded bboxes capturing only the target field?
+- Are any bboxes overlapping with adjacent fields?
+- Are any values being clipped?
+
+### 4.2 Medium-Term (Architecture Improvements)
+
+#### D. Two-Stage Detection Strategy
+```
+Stage 1: YOLO detects field regions (current)
+Stage 2: Within each detection, use PaddleOCR text detection
+         to find the precise text boundary
+Stage 3: Extract text from refined boundary
+```
+
+Benefits:
+- YOLO handles field classification (what)
+- PaddleOCR handles text localization (where exactly)
+- Eliminates the "tight vs loose" dilemma entirely
+
+#### E. Label Both Key and Value Separately
+Add new annotation classes: `invoice_date_label`, `invoice_date_value`
+- Model learns to find both the label and value
+- Use spatial relationship (label -> value) for more robust extraction
+- Aligns with FUNSD benchmark approach
+
+#### F. Confidence-Weighted Expansion
+Scale expansion by detection confidence:
+```python
+# Higher confidence = tighter crop (model is sure)
+# Lower confidence = wider crop (give OCR more context)
+expansion = base_expansion * (1.5 - confidence)
+```
+
+### 4.3 Long-Term (Next Generation)
+
+#### G. Move to LayoutLM-Style Token Classification
+- Replace YOLO field detection with token-level classification
+- Each OCR word gets classified as B-field/I-field/O
+- Eliminates bbox expansion entirely
+- Better for fields with complex layouts
+
+#### H. End-to-End with Donut/Pix2Struct
+- No separate OCR step
+- Model directly outputs structured fields from image
+- Zero bbox concerns
+- Requires more training data and compute
+
+---
+
+## 5. Recommended Action Plan
+
+### Phase 1: Validate Current Labels (1-2 days)
+- [ ] Build label visualization script
+- [ ] Sample 100 documents across all field types
+- [ ] Identify over-expansion and clipping cases
+- [ ] Document per-field accuracy of current expansion
+
+### Phase 2: Tune Expansion Parameters (2-3 days)
+- [ ] Reduce aggressive expansion ratios (OCR number, bankgiro)
+- [ ] Add inference-time OCR padding (5-10%)
+- [ ] Re-train model with adjusted labels
+- [ ] Compare mAP and field extraction accuracy
+
+### Phase 3: Two-Stage Refinement (1 week)
+- [ ] Implement PaddleOCR text detection within YOLO detection
+- [ ] Use text detection bbox for precise OCR crop
+- [ ] Keep YOLO expansion for classification only
+
+### Phase 4: Evaluation (ongoing)
+- [ ] Track per-field extraction accuracy on test set
+- [ ] A/B test tight vs expanded labels
+- [ ] Build regression test suite for labeling quality
+
+---
+
+## 6. Summary
+
+| Aspect | Current Approach | Best Practice | Gap |
+|---|---|---|---|
+| **Labeling** | Value + expansion at label time | Tight value + inference expansion | Medium |
+| **Expansion** | Field-specific directional | Field-specific directional | Aligned |
+| **Inference OCR crop** | Raw detection bbox | Detection + padding | Needs padding |
+| **Expansion ratios** | Aggressive (up to 1.80x) | Moderate (1.10-1.30x) | Over-expanded |
+| **Visualization QC** | None | Regular sampling | Missing |
+| **Coordinate consistency** | PDF points -> pixels | Consistent DPI | Check needed |
+
+**Bottom line**: The architecture (field-specific directional expansion) is sound and aligns with best practices. The main improvements are:
+1. **Reduce expansion aggressiveness** during training labels
+2. **Add OCR padding** at inference time
+3. **Add label quality visualization** for validation
+4. Longer term: consider **two-stage detection** or **token classification**

PLAN_TWO_STAGE_DETECTION.md

@@ -0,0 +1,153 @@
+# Plan: Two-Stage Detection (YOLO + PaddleOCR Value Selection)
+
+## Context
+
+Current inference flow: YOLO detects field region -> crop region -> PaddleOCR reads ALL text -> concatenate -> normalizer extracts value via regex.
+
+Problem: When training labels include label+value (e.g., "Fakturadatum 2024-01-15"), the detected region contains both label text and value text. Currently all OCR tokens are concatenated, and normalizers must regex out the value. This works for most fields but is fragile.
+
+Solution: After PaddleOCR returns individual text lines from the detected region, add a **value selection** step that picks the most likely value token(s) BEFORE sending to normalizer. This gives normalizers cleaner input and provides a more precise value bbox.
+
+## Key Insight
+
+PaddleOCR already returns individual `OCRToken` objects (text + bbox + confidence). The current code just concatenates them all (line 227 of `field_extractor.py`):
+
+```python
+raw_text = ' '.join(t.text for t in ocr_tokens)
+```
+
+The change: replace blind concatenation with field-aware token selection.
+
+## Architecture
+
+```
+Current:
+  YOLO bbox -> crop -> PaddleOCR -> [all tokens] -> concat -> normalizer
+
+New:
+  YOLO bbox -> crop -> PaddleOCR -> [all tokens] -> value_selector -> normalizer
+                                         |                |
+                                    individual         selected
+                                    text lines         value token(s)
+```
+
+## Scope: Inference Only
+
+| Pipeline Stage | Changed? | Reason |
+|---|---|---|
+| **Labeling** (autolabel, expansion) | NO | Expanded bbox gives YOLO strong visual patterns for generalization |
+| **Training** (YOLO26s) | NO | Model learns field regions correctly with current labels |
+| **Inference - Detection** (YOLO) | NO | Detection output is correct |
+| **Inference - Extraction** (OCR -> text) | **YES** | Add ValueSelector between OCR tokens and normalizer |
+
+This design works with ANY model -- tight-label model (15K docs) or expanded-label model (58 images). ValueSelector is model-agnostic.
+
+## Files to Modify
+
+| File | Change |
+|------|--------|
+| `packages/backend/backend/pipeline/value_selector.py` | **NEW** - Value selection logic per field type |
+| `packages/backend/backend/pipeline/field_extractor.py` | Use ValueSelector in both extraction paths |
+| `tests/pipeline/test_value_selector.py` | **NEW** - Tests for value selection |
+
+## Implementation
+
+### 1. New File: `value_selector.py`
+
+Core class `ValueSelector` with method:
+
+```python
+def select_value_tokens(
+    self,
+    tokens: list[OCRToken],
+    field_name: str
+) -> list[OCRToken]:
+```
+
+Field-specific selection rules:
+
+| Field | Strategy | Pattern |
+|-------|----------|---------|
+| InvoiceDate, InvoiceDueDate | Date pattern match | `\d{4}[-./]\d{2}[-./]\d{2}` or `\d{2}[-./]\d{2}[-./]\d{4}` or `\d{8}` |
+| Amount | Number pattern match | `\d[\d\s]*[,.]\d{2}` (prefer tokens with comma/decimal) |
+| Bankgiro | Giro pattern match | `\d{3,4}-\d{4}` or 7-8 consecutive digits |
+| Plusgiro | Giro pattern match | `\d+-\d` or 2-8 digits |
+| OCR | Longest digit sequence | Token with most consecutive digits (min 5) |
+| InvoiceNumber | Exclude known labels | Remove tokens matching Swedish label keywords, keep rest |
+| supplier_org_number | Org number pattern | `\d{6}-?\d{4}` |
+| customer_number | Exclude labels | Remove label keywords, keep alphanumeric tokens |
+| payment_line | Full concatenation | Keep all tokens (payment line needs full text) |
+
+Label keyword exclusion list (Swedish):
+```python
+LABEL_KEYWORDS = {
+    "fakturanummer", "fakturadatum", "forfallodag", "forfalldatum",
+    "bankgiro", "plusgiro", "bg", "pg", "ocr", "belopp", "summa",
+    "total", "att", "betala", "kundnummer", "organisationsnummer",
+    "org", "nr", "datum", "nummer", "ref", "referens",
+    "momsreg", "vat", "moms", "sek", "kr",
+}
+```
+
+Selection algorithm:
+1. Try field-specific pattern matching on individual tokens
+2. If match found -> return matched token(s) only
+3. If no match -> **fallback to ALL tokens** (current behavior, so we never lose data)
+
+### 2. Modify: `field_extractor.py`
+
+**OCR path** (`extract_from_detection`, line 224-228):
+
+```python
+# Before (current):
+ocr_tokens = self.ocr_engine.extract_from_image(region)
+raw_text = ' '.join(t.text for t in ocr_tokens)
+
+# After:
+ocr_tokens = self.ocr_engine.extract_from_image(region)
+value_tokens = self._value_selector.select_value_tokens(ocr_tokens, field_name)
+raw_text = ' '.join(t.text for t in value_tokens)
+```
+
+**PDF text path** (`extract_from_detection_with_pdf`, line 172-174):
+
+```python
+# Before (current):
+matching_tokens.sort(key=lambda x: -x[1])
+raw_text = ' '.join(t[0].text for t in matching_tokens)
+
+# After:
+matching_tokens.sort(key=lambda x: -x[1])
+all_text_tokens = [OCRToken(text=t[0].text, bbox=t[0].bbox, confidence=1.0) for t in matching_tokens]
+value_tokens = self._value_selector.select_value_tokens(all_text_tokens, field_name)
+raw_text = ' '.join(t.text for t in value_tokens)
+```
+
+**Constructor**: Add `ValueSelector` instance.
+
+### 3. Tests: `test_value_selector.py`
+
+Test cases per field type:
+- Date: "Fakturadatum 2024-01-15" -> selects "2024-01-15"
+- Amount: "Belopp 1 234,56 kr" -> selects "1 234,56"
+- Bankgiro: "BG: 123-4567" -> selects "123-4567"
+- OCR: "OCR 1234567890" -> selects "1234567890"
+- InvoiceNumber: "Fakturanr INV-2024-001" -> selects "INV-2024-001"
+- Fallback: Unknown pattern -> returns all tokens (no data loss)
+
+## Key Design Decisions
+
+1. **Fallback to full text**: If value selection can't identify the value, return ALL tokens. This means the change can never make things worse than current behavior.
+
+2. **ValueSelector is stateless**: Pure function, no side effects. Easy to test.
+
+3. **No training changes**: Training labels stay as-is (expanded bboxes). Only inference pipeline changes.
+
+4. **No normalizer changes**: Normalizers still work the same. They just get cleaner input.
+
+## Verification
+
+1. Run existing tests: `pytest tests/pipeline/ -v`
+2. Run new tests: `pytest tests/pipeline/test_value_selector.py -v`
+3. Manual validation: Run inference on a few invoices and compare raw_text before/after
+4. Regression check: Ensure no field extraction accuracy drops on existing test documents

PROJECT_REVIEW.md

@@ -8,11 +8,11 @@
 
 ## 项目概述
 
-**Invoice Master POC v2** - 基于 YOLOv11 + PaddleOCR 的瑞典发票字段自动提取系统
+**Invoice Master POC v2** - 基于 YOLO26 + PaddleOCR 的瑞典发票字段自动提取系统
 
 ### 核心功能
 - **自动标注**: 利用 CSV 结构化数据 + OCR 自动生成 YOLO 训练标注
-- **模型训练**: 使用 YOLOv11 训练字段检测模型，支持数据增强
+- **模型训练**: 使用 YOLO26 训练字段检测模型，支持数据增强
 - **推理提取**: 检测字段区域 → OCR 提取文本 → 字段规范化
 - **Web 管理**: React 前端 + FastAPI 后端，支持文档管理、数据集构建、模型训练和版本管理
 
@@ -175,7 +175,7 @@ frontend/        # React 前端 (Vite + TypeScript + TailwindCSS)
 
 | 组件 | 技术选择 | 评估 |
 |------|----------|------|
-| **目标检测** | YOLOv11 (Ultralytics) | ✅ 业界标准 |
+| **目标检测** | YOLO26 (Ultralytics >= 8.4.0) | ✅ 业界标准 |
 | **OCR 引擎** | PaddleOCR v5 | ✅ 支持瑞典语 |
 | **PDF 处理** | PyMuPDF (fitz) | ✅ 功能强大 |
 | **数据库** | PostgreSQL + SQLModel | ✅ 类型安全 |

README.md

@@ -1,14 +1,14 @@
 # Invoice Master POC v2
 
-自动发票字段提取系统 - 使用 YOLOv11 + PaddleOCR 从瑞典 PDF 发票中提取结构化数据。
+自动发票字段提取系统 - 使用 YOLO26 + PaddleOCR 从瑞典 PDF 发票中提取结构化数据。
 
 ## 项目概述
 
 本项目实现了一个完整的发票字段自动提取流程：
 
-1. **自动标注**: 利用已有 CSV 结构化数据 + OCR 自动生成 YOLO 训练标注
+1. **自动标注**: 利用已有 CSV 结构化数据 + OCR 自动生成 YOLO 训练标注（统一 15px 填充）
-2. **模型训练**: 使用 YOLOv11 训练字段检测模型，支持数据增强
+2. **模型训练**: 使用 YOLO26 训练字段检测模型，支持数据增强
-3. **推理提取**: 检测字段区域 -> OCR 提取文本 -> 字段规范化
+3. **推理提取**: 检测字段区域 -> OCR 提取文本 -> ValueSelector 过滤标签 -> 字段规范化
 4. **Web 管理**: React 前端 + FastAPI 后端，支持文档管理、数据集构建、模型训练和版本管理
 
 ### 架构
@@ -37,8 +37,8 @@ frontend/        # React 前端 (Vite + TypeScript + TailwindCSS)
 |------|------|
 | **已标注文档** | 9,738 (9,709 成功) |
 | **总体字段匹配率** | 94.8% (82,604/87,121) |
-| **测试** | 2,058 passed |
+| **测试** | 2,047 passed |
-| **测试覆盖率** | 60% |
+| **测试覆盖率** | 72% |
 | **模型 mAP@0.5** | 93.5% |
 
 **各字段匹配率:**
@@ -204,7 +204,7 @@ invoice-master-poc-v2/
 │       ├── run_server.py           # Web 服务器入口
 │       └── backend/
 │           ├── cli/                # infer, serve
-│           ├── pipeline/           # YOLO 检测, 字段提取, 解析器
+│           ├── pipeline/           # YOLO 检测, 字段提取, ValueSelector, 解析器
 │           ├── web/                # FastAPI 应用
 │           │   ├── api/v1/         # REST API (admin, public, batch)
 │           │   ├── schemas/        # Pydantic 数据模型
@@ -278,7 +278,7 @@ python -m training.cli.autolabel --workers 4
 ```bash
 # 从预训练模型开始训练
 python -m training.cli.train \
-    --model yolo11n.pt \
+    --model yolo26s.pt \
     --epochs 100 \
     --batch 16 \
     --name invoice_fields \
@@ -286,7 +286,7 @@ python -m training.cli.train \
 
 # 低内存模式
 python -m training.cli.train \
-    --model yolo11n.pt \
+    --model yolo26s.pt \
     --epochs 100 \
     --name invoice_fields \
     --low-memory
@@ -443,6 +443,30 @@ result = parser.parse("Said, Shakar Umj 436-R Billo")
 print(f"Customer Number: {result}")  # "UMJ 436-R"
 ```
 
+## 推理流水线 (Two-Stage Detection)
+
+```
+YOLO bbox -> crop -> PaddleOCR -> [all tokens] -> ValueSelector -> normalizer
+                                       |                |
+                                  individual         selected
+                                  text lines         value token(s)
+```
+
+**BBox 扩展**: 所有字段统一使用 15px 填充（150 DPI 下约 2.5mm），不做方向性扩展，不依赖布局假设。
+
+**ValueSelector**: 在 OCR 和 normalizer 之间按字段类型过滤标签文本，只保留值 token：
+
+| 字段 | 选择策略 | 示例输入 -> 输出 |
+|------|---------|-----------------|
+| InvoiceDate / DueDate | 日期模式匹配 | "Fakturadatum 2024-01-15" -> "2024-01-15" |
+| Amount | 金额模式匹配 | "Belopp 1 234,56 kr" -> "1 234,56" |
+| Bankgiro / Plusgiro | Giro 号码模式 | "BG: 123-4567" -> "123-4567" |
+| OCR | 最长数字序列 (>=5位) | "OCR 94228110015950070" -> "94228110015950070" |
+| InvoiceNumber | 排除瑞典语标签 | "Fakturanr INV-2024-001" -> "INV-2024-001" |
+| payment_line | 保留全部 | 不过滤 |
+
+如果没有匹配到任何模式，回退返回全部 token（永远不会比之前更差）。
+
 ## DPI 配置
 
 系统所有组件统一使用 **150 DPI**。DPI 必须在训练和推理时保持一致。
@@ -506,9 +530,9 @@ DB_PASSWORD=xxx pytest tests/ --cov=packages --cov-report=term-missing
 
 | 指标 | 数值 |
 |------|------|
-| **测试总数** | 2,058 |
+| **测试总数** | 2,047 |
 | **通过率** | 100% |
-| **覆盖率** | 60% |
+| **覆盖率** | 72% |
 
 ## 存储抽象层
 
@@ -619,7 +643,7 @@ npm run dev
 
 | 组件 | 技术 |
 |------|------|
-| **目标检测** | YOLOv11 (Ultralytics) |
+| **目标检测** | YOLO26 (Ultralytics >= 8.4.0) |
 | **OCR 引擎** | PaddleOCR v5 (PP-OCRv5) |
 | **PDF 处理** | PyMuPDF (fitz) |
 | **数据库** | PostgreSQL + SQLModel |

configs/default.yaml

@@ -76,7 +76,7 @@ matching:
 
 # YOLO Training
 yolo:
-  model: yolov8s              # Model architecture (yolov8n/s/m/l/x)
+  model: yolo26s              # Model architecture (yolo26n/s/m/l/x)
   epochs: 100
   batch_size: 16
   img_size: 1280              # Image size for training

configs/training.yaml

@@ -2,7 +2,7 @@
 # Use with: yolo train data=dataset.yaml cfg=training.yaml
 
 # Model
-model: yolov8s.pt
+model: yolo26s.pt
 
 # Training hyperparameters
 epochs: 100
@@ -57,3 +57,12 @@ name: invoice_fields
 exist_ok: true
 pretrained: true
 verbose: true
+
+# Fine-tuning profile (overrides when task_type == finetune)
+finetune:
+  epochs: 10
+  lr0: 0.001
+  freeze: 10
+  warmup_epochs: 1
+  cos_lr: true
+  patience: 5

docs/FORTNOX_INTEGRATION_SPEC.md

@@ -32,7 +32,7 @@
 
 ### 1.1 项目背景
 
-Invoice Master是一个基于YOLOv11 + PaddleOCR的发票字段自动提取系统，当前准确率达到94.8%。本方案设计将Invoice Master作为Fortnox会计软件的插件/扩展，实现无缝的发票数据导入功能。
+Invoice Master是一个基于YOLO26 + PaddleOCR的发票字段自动提取系统，当前准确率达到94.8%。本方案设计将Invoice Master作为Fortnox会计软件的插件/扩展，实现无缝的发票数据导入功能。
 
 ### 1.2 目标
 

docs/aws-deployment-guide.md

@@ -500,7 +500,7 @@ estimator = PyTorch(
     hyperparameters={
         "epochs": 100,
         "batch-size": 16,
-        "model": "yolo11n.pt"
+        "model": "yolo26s.pt"
     }
 )
 ```

docs/azure-deployment-guide.md

@@ -152,7 +152,7 @@ rclone mount azure:training-images Z: --vfs-cache-mode full
 ### 推荐: Container Apps (CPU)
 
 对于 YOLO 推理，**CPU 足够**，不需要 GPU：
-- YOLOv11n 在 CPU 上推理时间 ~200-500ms
+- YOLO26s 在 CPU 上推理时间 ~200-500ms
 - 比 GPU 便宜很多，适合中低流量
 
 ```yaml
@@ -335,7 +335,7 @@ az containerapp create \
 │   ~$30/月             │       │   ~$1-5/次训练        │       │                       │
 │                       │       │                       │       │                       │
 │ ┌───────────────────┐ │       │ ┌───────────────────┐ │       │ ┌───────────────────┐ │
-│ │ FastAPI + YOLO    │ │       │ │ YOLOv11 Training  │ │       │ │ React/Vue 前端    │ │
+│ │ FastAPI + YOLO    │ │       │ │ YOLO26 Training   │ │       │ │ React/Vue 前端    │ │
 │ │ /api/v1/infer     │ │       │ │ 100 epochs        │ │       │ │ 上传发票界面      │ │
 │ └───────────────────┘ │       │ └───────────────────┘ │       │ └───────────────────┘ │
 └───────────┬───────────┘       └───────────┬───────────┘       └───────────┬───────────┘

docs/fine-tuning-best-practices.md

@@ -0,0 +1,185 @@
+# YOLO Model Fine-Tuning Best Practices
+
+Production guide for continuous fine-tuning of YOLO object detection models with user feedback.
+
+## Overview
+
+When users report failed detections, those documents are collected, reviewed, and used to incrementally improve the model without degrading performance on existing data.
+
+Key risks:
+- **Catastrophic forgetting**: model forgets original training after fine-tuning on small new data
+- **Cumulative drift**: repeated fine-tuning sessions cause progressive degradation
+- **Overfitting**: few samples + many epochs = memorizing noise
+
+## 1. Data Management
+
+```
+Original training set (25K) --> permanently retained as "anchor dataset"
+         |
+User-reported failures --> human review & labeling --> "fine-tune pool"
+         |
+Fine-tune pool accumulates over time, never deleted
+```
+
+Every new sample MUST be human-verified before entering the fine-tune pool. Incorrect labels are more harmful than no labels.
+
+### Data Mixing Ratios
+
+| Accumulated New Samples | Old Data Multiplier | Total Training Size |
+|------------------------|--------------------|--------------------|
+| 10                     | 50x (500)          | 510                |
+| 50                     | 20x (1,000)        | 1,050              |
+| 200                    | 10x (2,000)        | 2,200              |
+| 500+                   | 5x (2,500)         | 3,000              |
+
+Principle: fewer new samples require higher old data ratio. Stabilize at 5x once pool reaches 500+.
+
+Old samples are randomly sampled from the original 25K each time, ensuring broad coverage.
+
+## 2. Model Version Management
+
+```
+base_v1.pt (original 25K training)
+  +-- ft_v1.1.pt (base + fine-tune batch 1)
+  +-- ft_v1.2.pt (base + fine-tune batch 1+2)
+  +-- ...
+
+When fine-tune pool reaches 2000+ samples:
+base_v2.pt (original 25K + all accumulated samples, trained from scratch)
+  +-- ft_v2.1.pt
+  +-- ...
+```
+
+CRITICAL: Never chain fine-tunes (ft_v1.1 -> ft_v1.2 -> ft_v1.3). Always start from the base model to avoid cumulative drift.
+
+## 3. Fine-Tuning Parameters
+
+```yaml
+base_model: best.pt           # always start from base model
+epochs: 10                    # few epochs are sufficient
+lr0: 0.001                    # 1/10 of base training lr
+freeze: 10                    # freeze first 10 backbone layers
+warmup_epochs: 1
+cos_lr: true
+
+# data mixing
+new_samples: all              # entire fine-tune pool
+old_samples: min(5x_new, 3000) # old data sampling, cap at 3000
+```
+
+### Why These Settings
+
+| Parameter | Rationale |
+|-----------|-----------|
+| `epochs: 10` | More than enough for small datasets; prevents overfitting |
+| `lr0: 0.001` | Low learning rate preserves base model knowledge |
+| `freeze: 10` | Backbone features are general; only fine-tune detection head and later layers |
+| `cos_lr: true` | Smooth decay prevents sharp weight updates |
+
+## 4. Deployment Gating (Most Important)
+
+Every fine-tuned model MUST pass three gates before deployment:
+
+### Gate 1: Regression Validation
+
+Run evaluation on the original test set (held out from the 25K training data).
+
+| mAP50 Change | Action |
+|-------------|--------|
+| Drop < 1%   | PASS - deploy |
+| Drop 1-3%   | REVIEW - human inspection required |
+| Drop > 3%   | REJECT - do not deploy |
+
+### Gate 2: New Sample Validation
+
+Run inference on the new failure documents.
+
+| Detection Rate | Action |
+|---------------|--------|
+| > 80% correct | PASS |
+| < 80% correct | REVIEW - check label quality or increase training |
+
+### Gate 3: A/B Comparison (Optional)
+
+Sample 100 production documents, run both old and new models:
+- New model must not be worse on any field type
+- Compare per-class mAP to detect targeted regressions
+
+## 5. Fine-Tuning Frequency
+
+| Strategy | Trigger | Recommendation |
+|----------|---------|---------------|
+| **By volume (recommended)** | Pool reaches 50+ new samples | Best signal-to-noise ratio |
+| By schedule | Weekly or monthly | Predictable but may trigger with insufficient data |
+| By performance | Monitored accuracy drops below threshold | Reactive, requires monitoring infrastructure |
+
+Do NOT fine-tune daily with fewer than 50 samples. The noise outweighs the signal.
+
+## 6. Complete Workflow
+
+```
+User marks failed document
+       |
+       v
+Human reviews and labels annotations
+       |
+       v
+Add to fine-tune pool
+       |
+       v
+Pool >= 50 samples? --NO--> Wait for more samples
+       |
+      YES
+       |
+       v
+Prepare mixed dataset:
+  - All samples from fine-tune pool
+  - Random sample 5x from original 25K
+       |
+       v
+Fine-tune from base.pt:
+  - 10 epochs
+  - lr0 = 0.001
+  - freeze first 10 layers
+       |
+       v
+Gate 1: Original test set mAP drop < 1%?
+       |
+      PASS
+       |
+       v
+Gate 2: New sample detection rate > 80%?
+       |
+      PASS
+       |
+       v
+Deploy new model, retain old model for rollback
+       |
+       v
+Pool accumulated 2000+ samples?
+       |
+      YES --> Merge all data, train new base from scratch
+```
+
+## 7. Monitoring in Production
+
+Track these metrics continuously:
+
+| Metric | Purpose | Alert Threshold |
+|--------|---------|----------------|
+| Detection rate per field | Catch field-specific regressions | < 90% for any field |
+| Average confidence score | Detect model uncertainty drift | Drop > 5% from baseline |
+| User-reported failures / week | Measure improvement trend | Increasing over 3 weeks |
+| Inference latency | Ensure model size hasn't bloated | > 2x baseline |
+
+## 8. Summary of Rules
+
+| Rule | Practice |
+|------|----------|
+| Never chain fine-tunes | Always start from base.pt |
+| Never use only new data | Must mix with old data |
+| Never fine-tune on < 50 samples | Accumulate before triggering |
+| Never auto-deploy | Must pass gating validation |
+| Never discard old models | Retain versions for rollback |
+| Periodically retrain base | Merge all data at 2000+ new samples |
+| Always human-review labels | Bad labels are worse than no labels |

docs/product-plan-v2.md

@@ -546,7 +546,7 @@ Request:
   "description": "First training run with 500 documents",
   "document_ids": ["uuid1", "uuid2", "uuid3"],
   "config": {
-    "model_name": "yolo11n.pt",
+    "model_name": "yolo26s.pt",
     "epochs": 100,
     "batch_size": 16,
     "image_size": 640
@@ -1036,7 +1036,7 @@ Response:
 |  | Name: [Training Run 2024-01____________]                      | |
 |  | Description: [First training with 500 documents_________]     | |
 |  |                                                               | |
-|  | Base Model: [yolo11n.pt v]   Epochs: [100]   Batch: [16]     | |
+|  | Base Model: [yolo26s.pt v]   Epochs: [100]   Batch: [16]     | |
 |  | Image Size: [640]            Device: [GPU 0 v]               | |
 |  |                                                               | |
 |  | [ ] Schedule for later: [2024-01-20] [22:00]                 | |
@@ -1088,7 +1088,7 @@ Response:
 |  | - Recall: 92%                                                | |
 |  |                                                               | |
 |  | Configuration:                                                | |
-|  | - Base: yolo11n.pt   Epochs: 100   Batch: 16   Size: 640    | |
+|  | - Base: yolo26s.pt   Epochs: 100   Batch: 16   Size: 640    | |
 |  |                                                               | |
 |  | Documents Used: [View 600 documents]                          | |
 |  +--------------------------------------------------------------+ |

docs/training-flow.mmd

@@ -27,7 +27,7 @@ flowchart TD
 
     I --> I1{--resume?}
     I1 -- Yes --> I2[Load last.pt checkpoint]
-    I1 -- No --> I3[Load pretrained model\ne.g. yolo11n.pt]
+    I1 -- No --> I3[Load pretrained model\ne.g. yolo26s.pt]
 
     I2 --> J[Configure Training]
     I3 --> J

frontend/src/api/endpoints/index.ts

@@ -5,4 +5,5 @@ export { inferenceApi } from './inference'
 export { datasetsApi } from './datasets'
 export { augmentationApi } from './augmentation'
 export { modelsApi } from './models'
+export { poolApi } from './pool'
 export { dashboardApi } from './dashboard'

frontend/src/api/endpoints/pool.ts

@@ -0,0 +1,40 @@
+import apiClient from '../client'
+import type {
+  PoolListResponse,
+  PoolStatsResponse,
+  PoolEntryResponse,
+} from '../types'
+
+export const poolApi = {
+  addToPool: async (documentId: string, reason?: string): Promise<PoolEntryResponse> => {
+    const { data } = await apiClient.post('/api/v1/admin/training/pool', {
+      document_id: documentId,
+      reason: reason ?? 'manual_addition',
+    })
+    return data
+  },
+
+  listEntries: async (params?: {
+    verified_only?: boolean
+    limit?: number
+    offset?: number
+  }): Promise<PoolListResponse> => {
+    const { data } = await apiClient.get('/api/v1/admin/training/pool', { params })
+    return data
+  },
+
+  getStats: async (): Promise<PoolStatsResponse> => {
+    const { data } = await apiClient.get('/api/v1/admin/training/pool/stats')
+    return data
+  },
+
+  verifyEntry: async (entryId: string): Promise<PoolEntryResponse> => {
+    const { data } = await apiClient.post(`/api/v1/admin/training/pool/${entryId}/verify`)
+    return data
+  },
+
+  removeEntry: async (entryId: string): Promise<{ message: string }> => {
+    const { data } = await apiClient.delete(`/api/v1/admin/training/pool/${entryId}`)
+    return data
+  },
+}

frontend/src/api/types.ts

@@ -111,6 +111,9 @@ export interface ModelVersionItem {
   is_active: boolean
   metrics_mAP: number | null
   document_count: number
+  model_type?: string
+  base_model_version_id?: string | null
+  gating_status?: string
   trained_at: string | null
   activated_at: string | null
   created_at: string
@@ -370,19 +373,6 @@ export interface TrainingTaskResponse {
 
 // Model Version types
 
-export interface ModelVersionItem {
-  version_id: string
-  version: string
-  name: string
-  status: string
-  is_active: boolean
-  metrics_mAP: number | null
-  document_count: number
-  trained_at: string | null
-  activated_at: string | null
-  created_at: string
-}
-
 export interface ModelVersionDetailResponse {
   version_id: string
   version: string
@@ -397,6 +387,10 @@ export interface ModelVersionDetailResponse {
   metrics_precision: number | null
   metrics_recall: number | null
   document_count: number
+  model_type?: string
+  base_model_version_id?: string | null
+  base_training_dataset_id?: string | null
+  gating_status?: string
   training_config: Record<string, unknown> | null
   file_size: number | null
   trained_at: string | null
@@ -405,6 +399,39 @@ export interface ModelVersionDetailResponse {
   updated_at: string
 }
 
+// Fine-Tune Pool types
+
+export interface PoolEntryItem {
+  entry_id: string
+  document_id: string
+  added_by: string | null
+  reason: string | null
+  is_verified: boolean
+  verified_at: string | null
+  verified_by: string | null
+  created_at: string
+}
+
+export interface PoolListResponse {
+  total: number
+  limit: number
+  offset: number
+  entries: PoolEntryItem[]
+}
+
+export interface PoolStatsResponse {
+  total_entries: number
+  verified_entries: number
+  unverified_entries: number
+  is_ready: boolean
+  min_required: number
+}
+
+export interface PoolEntryResponse {
+  entry_id: string
+  message: string
+}
+
 export interface ModelVersionListResponse {
   total: number
   limit: number

frontend/src/components/Models.tsx

@@ -74,13 +74,33 @@ export const Models: React.FC = () => {
                      </h4>
                      <p className="text-sm text-warm-text-muted">Trained {formatDate(model.trained_at)}</p>
                    </div>
-                   <span className={`px-3 py-1 rounded-full text-xs font-medium ${
+                   <div className="flex gap-1.5 items-center">
-                     model.is_active
+                     {(model.model_type ?? 'base') === 'finetune' && (
-                       ? 'bg-warm-state-info/10 text-warm-state-info'
+                       <span className="px-2 py-0.5 rounded text-xs font-medium bg-purple-100 text-purple-700">
-                       : 'bg-warm-selected text-warm-state-success'
+                         Fine-tuned
-                   }`}>
+                       </span>
-                     {model.is_active ? 'Active' : model.status}
+                     )}
-                   </span>
+                     {model.gating_status && model.gating_status !== 'skipped' && (
+                       <span className={`px-2 py-0.5 rounded text-xs font-medium ${
+                         model.gating_status === 'pass' ? 'bg-green-100 text-green-700'
+                         : model.gating_status === 'review' ? 'bg-yellow-100 text-yellow-700'
+                         : model.gating_status === 'reject' ? 'bg-red-100 text-red-700'
+                         : 'bg-gray-100 text-gray-600'
+                       }`}>
+                         {model.gating_status === 'pass' ? 'PASS'
+                         : model.gating_status === 'review' ? 'REVIEW'
+                         : model.gating_status === 'reject' ? 'REJECT'
+                         : model.gating_status.toUpperCase()}
+                       </span>
+                     )}
+                     <span className={`px-3 py-1 rounded-full text-xs font-medium ${
+                       model.is_active
+                         ? 'bg-warm-state-info/10 text-warm-state-info'
+                         : 'bg-warm-selected text-warm-state-success'
+                     }`}>
+                       {model.is_active ? 'Active' : model.status}
+                     </span>
+                   </div>
                 </div>
 
                 <div className="mt-4 flex gap-8">

frontend/src/components/Training.tsx

@@ -1,15 +1,15 @@
 import React, { useState, useMemo } from 'react'
-import { useQuery } from '@tanstack/react-query'
+import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query'
-import { Database, Plus, Trash2, Eye, Play, Check, Loader2, AlertCircle } from 'lucide-react'
+import { Database, Plus, Trash2, Eye, Play, Check, Loader2, AlertCircle, Shield, CheckCircle, XCircle } from 'lucide-react'
 import { Button } from './Button'
 import { AugmentationConfig } from './AugmentationConfig'
 import { useDatasets } from '../hooks/useDatasets'
 import { useTrainingDocuments } from '../hooks/useTraining'
-import { trainingApi } from '../api/endpoints'
+import { trainingApi, poolApi } from '../api/endpoints'
-import type { DatasetListItem } from '../api/types'
+import type { DatasetListItem, PoolEntryItem } from '../api/types'
 import type { AugmentationConfig as AugmentationConfigType } from '../api/endpoints/augmentation'
 
-type Tab = 'datasets' | 'create'
+type Tab = 'datasets' | 'create' | 'pool'
 
 interface TrainingProps {
   onNavigate?: (view: string, id?: string) => void
@@ -72,19 +72,23 @@ const TrainDialog: React.FC<TrainDialogProps> = ({ dataset, onClose, onSubmit, i
   const [augmentationConfig, setAugmentationConfig] = useState<Partial<AugmentationConfigType>>({})
   const [augmentationMultiplier, setAugmentationMultiplier] = useState(2)
 
+  const isFineTune = baseModelType === 'existing'
+
   // Fetch available trained models (active or inactive, not archived)
   const { data: modelsData } = useQuery({
     queryKey: ['training', 'models', 'available'],
     queryFn: () => trainingApi.getModels(),
   })
-  // Filter out archived models - only show active/inactive models for base model selection
+  // Only show base models (not fine-tuned) for selection - prevents chaining fine-tunes
-  const availableModels = (modelsData?.models ?? []).filter(m => m.status !== 'archived')
+  const availableModels = (modelsData?.models ?? []).filter(
+    m => m.status !== 'archived' && (m.model_type ?? 'base') === 'base'
+  )
 
   const handleSubmit = () => {
     onSubmit({
       name,
       config: {
-        model_name: baseModelType === 'pretrained' ? 'yolo11n.pt' : undefined,
+        model_name: baseModelType === 'pretrained' ? 'yolo26s.pt' : undefined,
         base_model_version_id: baseModelType === 'existing' ? baseModelVersionId : null,
         epochs,
         batch_size: batchSize,
@@ -121,14 +125,16 @@ const TrainDialog: React.FC<TrainDialogProps> = ({ dataset, onClose, onSubmit, i
                 if (e.target.value === 'pretrained') {
                   setBaseModelType('pretrained')
                   setBaseModelVersionId(null)
+                  setEpochs(100)
                 } else {
                   setBaseModelType('existing')
                   setBaseModelVersionId(e.target.value)
+                  setEpochs(10) // Fine-tune: fewer epochs per best practices
                 }
               }}
               className="w-full h-10 px-3 rounded-md border border-warm-divider bg-white text-warm-text-primary focus:outline-none focus:ring-1 focus:ring-warm-state-info"
             >
-              <option value="pretrained">yolo11n.pt (Pretrained)</option>
+              <option value="pretrained">yolo26s.pt (Pretrained)</option>
               {availableModels.map(m => (
                 <option key={m.version_id} value={m.version_id}>
                   {m.name} v{m.version} ({m.metrics_mAP ? `${(m.metrics_mAP * 100).toFixed(1)}% mAP` : 'No metrics'})
@@ -138,10 +144,23 @@ const TrainDialog: React.FC<TrainDialogProps> = ({ dataset, onClose, onSubmit, i
             <p className="text-xs text-warm-text-muted mt-1">
               {baseModelType === 'pretrained'
                 ? 'Start from pretrained YOLO model'
-                : 'Continue training from an existing model (incremental training)'}
+                : 'Fine-tune from base model (freeze=10, cos_lr, data mixing)'}
             </p>
           </div>
 
+          {/* Fine-tune info panel */}
+          {isFineTune && (
+            <div className="bg-warm-state-info/5 border border-warm-state-info/20 rounded-lg p-3 text-xs text-warm-text-secondary">
+              <p className="font-medium text-warm-state-info mb-1">Fine-Tune Mode</p>
+              <ul className="space-y-0.5 text-warm-text-muted">
+                <li>Epochs: 10 (auto-set), Backbone frozen (10 layers)</li>
+                <li>Cosine LR scheduler, Pool data mixed with old data</li>
+                <li>Requires 50+ verified pool entries</li>
+                <li>Deployment gating runs automatically after training</li>
+              </ul>
+            </div>
+          )}
+
           <div className="flex gap-4">
             <div className="flex-1">
               <label htmlFor="train-epochs" className="block text-sm font-medium text-warm-text-secondary mb-1">Epochs</label>
@@ -455,6 +474,148 @@ const CreateDataset: React.FC<{ onSwitchTab: (tab: Tab) => void }> = ({ onSwitch
   )
 }
 
+// --- Fine-Tune Pool ---
+
+const FineTunePool: React.FC = () => {
+  const queryClient = useQueryClient()
+
+  const { data: statsData, isLoading: isLoadingStats } = useQuery({
+    queryKey: ['pool', 'stats'],
+    queryFn: () => poolApi.getStats(),
+  })
+
+  const { data: entriesData, isLoading: isLoadingEntries } = useQuery({
+    queryKey: ['pool', 'entries'],
+    queryFn: () => poolApi.listEntries({ limit: 50 }),
+  })
+
+  const verifyMutation = useMutation({
+    mutationFn: (entryId: string) => poolApi.verifyEntry(entryId),
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: ['pool'] })
+    },
+  })
+
+  const removeMutation = useMutation({
+    mutationFn: (entryId: string) => poolApi.removeEntry(entryId),
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: ['pool'] })
+    },
+  })
+
+  const stats = statsData
+  const entries = entriesData?.entries ?? []
+
+  return (
+    <div className="space-y-6">
+      {/* Pool Stats */}
+      <div className="grid grid-cols-4 gap-4">
+        {isLoadingStats ? (
+          <div className="col-span-4 flex items-center justify-center py-8 text-warm-text-muted">
+            <Loader2 size={20} className="animate-spin mr-2" />Loading stats...
+          </div>
+        ) : (
+          <>
+            <div className="bg-warm-card border border-warm-border rounded-lg p-4">
+              <p className="text-xs text-warm-text-muted uppercase mb-1">Total Entries</p>
+              <p className="text-2xl font-bold font-mono text-warm-text-primary">{stats?.total_entries ?? 0}</p>
+            </div>
+            <div className="bg-warm-card border border-warm-border rounded-lg p-4">
+              <p className="text-xs text-warm-text-muted uppercase mb-1">Verified</p>
+              <p className="text-2xl font-bold font-mono text-warm-state-success">{stats?.verified_entries ?? 0}</p>
+            </div>
+            <div className="bg-warm-card border border-warm-border rounded-lg p-4">
+              <p className="text-xs text-warm-text-muted uppercase mb-1">Unverified</p>
+              <p className="text-2xl font-bold font-mono text-warm-state-warning">{stats?.unverified_entries ?? 0}</p>
+            </div>
+            <div className="bg-warm-card border border-warm-border rounded-lg p-4">
+              <p className="text-xs text-warm-text-muted uppercase mb-1">Ready for Fine-Tune</p>
+              <div className="flex items-center gap-2">
+                {stats?.is_ready ? (
+                  <CheckCircle size={20} className="text-warm-state-success" />
+                ) : (
+                  <AlertCircle size={20} className="text-warm-state-warning" />
+                )}
+                <p className="text-lg font-medium text-warm-text-primary">
+                  {stats?.is_ready ? 'Yes' : `Need ${(stats?.min_required ?? 50) - (stats?.verified_entries ?? 0)} more`}
+                </p>
+              </div>
+            </div>
+          </>
+        )}
+      </div>
+
+      {/* Pool Entries Table */}
+      {isLoadingEntries ? (
+        <div className="flex items-center justify-center py-12 text-warm-text-muted">
+          <Loader2 size={20} className="animate-spin mr-2" />Loading pool entries...
+        </div>
+      ) : entries.length === 0 ? (
+        <div className="flex flex-col items-center justify-center py-16 text-warm-text-muted">
+          <Shield size={48} className="mb-4 opacity-40" />
+          <p className="text-lg mb-2">Fine-tune pool is empty</p>
+          <p className="text-sm">Add documents with extraction failures to the pool for future fine-tuning.</p>
+        </div>
+      ) : (
+        <div className="bg-warm-card border border-warm-border rounded-lg overflow-hidden shadow-sm">
+          <table className="w-full text-left">
+            <thead className="bg-white border-b border-warm-border">
+              <tr>
+                <th className="py-3 px-4 text-xs font-semibold text-warm-text-muted uppercase">Document ID</th>
+                <th className="py-3 px-4 text-xs font-semibold text-warm-text-muted uppercase">Reason</th>
+                <th className="py-3 px-4 text-xs font-semibold text-warm-text-muted uppercase">Status</th>
+                <th className="py-3 px-4 text-xs font-semibold text-warm-text-muted uppercase">Added</th>
+                <th className="py-3 px-4 text-xs font-semibold text-warm-text-muted uppercase">Actions</th>
+              </tr>
+            </thead>
+            <tbody>
+              {entries.map((entry: PoolEntryItem) => (
+                <tr key={entry.entry_id} className="border-b border-warm-border hover:bg-warm-hover transition-colors">
+                  <td className="py-3 px-4 text-sm font-mono text-warm-text-secondary">{entry.document_id.slice(0, 8)}...</td>
+                  <td className="py-3 px-4 text-sm text-warm-text-muted">{entry.reason ?? '-'}</td>
+                  <td className="py-3 px-4">
+                    <span className={`inline-flex items-center px-2.5 py-1 rounded-full text-xs font-medium ${
+                      entry.is_verified
+                        ? 'bg-warm-state-success/10 text-warm-state-success'
+                        : 'bg-warm-state-warning/10 text-warm-state-warning'
+                    }`}>
+                      {entry.is_verified ? <Check size={12} className="mr-1" /> : <AlertCircle size={12} className="mr-1" />}
+                      {entry.is_verified ? 'Verified' : 'Unverified'}
+                    </span>
+                  </td>
+                  <td className="py-3 px-4 text-sm text-warm-text-muted">{new Date(entry.created_at).toLocaleDateString()}</td>
+                  <td className="py-3 px-4">
+                    <div className="flex gap-1">
+                      {!entry.is_verified && (
+                        <button
+                          title="Verify"
+                          onClick={() => verifyMutation.mutate(entry.entry_id)}
+                          disabled={verifyMutation.isPending}
+                          className="p-1.5 rounded hover:bg-warm-selected text-warm-text-muted hover:text-warm-state-success transition-colors"
+                        >
+                          <CheckCircle size={14} />
+                        </button>
+                      )}
+                      <button
+                        title="Remove"
+                        onClick={() => removeMutation.mutate(entry.entry_id)}
+                        disabled={removeMutation.isPending}
+                        className="p-1.5 rounded hover:bg-warm-selected text-warm-text-muted hover:text-warm-state-error transition-colors"
+                      >
+                        <Trash2 size={14} />
+                      </button>
+                    </div>
+                  </td>
+                </tr>
+              ))}
+            </tbody>
+          </table>
+        </div>
+      )}
+    </div>
+  )
+}
+
 // --- Main Training Component ---
 
 export const Training: React.FC<TrainingProps> = ({ onNavigate }) => {
@@ -468,7 +629,7 @@ export const Training: React.FC<TrainingProps> = ({ onNavigate }) => {
 
       {/* Tabs */}
       <div className="flex gap-1 mb-6 border-b border-warm-border">
-        {([['datasets', 'Datasets'], ['create', 'Create Dataset']] as const).map(([key, label]) => (
+        {([['datasets', 'Datasets'], ['create', 'Create Dataset'], ['pool', 'Fine-Tune Pool']] as const).map(([key, label]) => (
           <button key={key} onClick={() => setActiveTab(key)}
             className={`px-4 py-2.5 text-sm font-medium border-b-2 transition-colors ${
               activeTab === key
@@ -482,6 +643,7 @@ export const Training: React.FC<TrainingProps> = ({ onNavigate }) => {
 
       {activeTab === 'datasets' && <DatasetList onNavigate={onNavigate} onSwitchTab={setActiveTab} />}
       {activeTab === 'create' && <CreateDataset onSwitchTab={setActiveTab} />}
+      {activeTab === 'pool' && <FineTunePool />}
     </div>
   )
 }

packages/backend/backend/data/admin_models.py

@@ -289,6 +289,16 @@ class ModelVersion(SQLModel, table=True):
     is_active: bool = Field(default=False, index=True)
     # Only one version can be active at a time for inference
 
+    # Model lineage
+    model_type: str = Field(default="base", max_length=20, index=True)
+    # "base" = trained from pretrained YOLO, "finetune" = fine-tuned from base model
+    base_model_version_id: UUID | None = Field(default=None, index=True)
+    # Points to the base model this was fine-tuned from (None for base models)
+    base_training_dataset_id: UUID | None = Field(default=None, index=True)
+    # The dataset used for original base training (for data mixing old samples)
+    gating_status: str = Field(default="pending", max_length=20, index=True)
+    # Deployment gating: pending, pass, review, reject, skipped
+
     # Training association
     task_id: UUID | None = Field(default=None, foreign_key="training_tasks.task_id", index=True)
     dataset_id: UUID | None = Field(default=None, foreign_key="training_datasets.dataset_id", index=True)
@@ -317,6 +327,64 @@ class ModelVersion(SQLModel, table=True):
     updated_at: datetime = Field(default_factory=datetime.utcnow)
 
 
+# =============================================================================
+# Fine-Tune Pool
+# =============================================================================
+
+
+class FineTunePoolEntry(SQLModel, table=True):
+    """Document in the fine-tune pool for incremental model improvement."""
+
+    __tablename__ = "finetune_pool_entries"
+
+    entry_id: UUID = Field(default_factory=uuid4, primary_key=True)
+    document_id: UUID = Field(foreign_key="admin_documents.document_id", index=True)
+    added_by: str | None = Field(default=None, max_length=255)
+    reason: str | None = Field(default=None, max_length=255)
+    # Reason: user_reported_failure, manual_addition
+    is_verified: bool = Field(default=False, index=True)
+    verified_at: datetime | None = Field(default=None)
+    verified_by: str | None = Field(default=None, max_length=255)
+    created_at: datetime = Field(default_factory=datetime.utcnow)
+
+
+# =============================================================================
+# Deployment Gating
+# =============================================================================
+
+
+class GatingResult(SQLModel, table=True):
+    """Model deployment gating validation result."""
+
+    __tablename__ = "gating_results"
+
+    result_id: UUID = Field(default_factory=uuid4, primary_key=True)
+    model_version_id: UUID = Field(foreign_key="model_versions.version_id", index=True)
+    task_id: UUID | None = Field(default=None, foreign_key="training_tasks.task_id")
+
+    # Gate 1: Regression validation (original test set mAP)
+    gate1_status: str = Field(default="pending", max_length=20)
+    # pending, pass, review, reject
+    gate1_original_mAP: float | None = Field(default=None)
+    gate1_new_mAP: float | None = Field(default=None)
+    gate1_mAP_drop: float | None = Field(default=None)
+
+    # Gate 2: New sample validation (detection rate on pool docs)
+    gate2_status: str = Field(default="pending", max_length=20)
+    gate2_detection_rate: float | None = Field(default=None)
+    gate2_total_samples: int | None = Field(default=None)
+    gate2_detected_samples: int | None = Field(default=None)
+
+    # Overall
+    overall_status: str = Field(default="pending", max_length=20)
+    # pending, pass, review, reject
+    reviewer_notes: str | None = Field(default=None)
+    reviewed_by: str | None = Field(default=None, max_length=255)
+    reviewed_at: datetime | None = Field(default=None)
+
+    created_at: datetime = Field(default_factory=datetime.utcnow)
+
+
 # =============================================================================
 # Annotation History (v2)
 # =============================================================================

packages/backend/backend/data/repositories/__init__.py

@@ -13,6 +13,7 @@ from backend.data.repositories.training_task_repository import TrainingTaskRepos
 from backend.data.repositories.dataset_repository import DatasetRepository
 from backend.data.repositories.model_version_repository import ModelVersionRepository
 from backend.data.repositories.batch_upload_repository import BatchUploadRepository
+from backend.data.repositories.finetune_pool_repository import FineTunePoolRepository
 
 __all__ = [
     "BaseRepository",
@@ -23,4 +24,5 @@ __all__ = [
     "DatasetRepository",
     "ModelVersionRepository",
     "BatchUploadRepository",
+    "FineTunePoolRepository",
 ]

packages/backend/backend/data/repositories/finetune_pool_repository.py

@@ -0,0 +1,131 @@
+"""
+Fine-Tune Pool Repository
+
+Manages the fine-tune pool: accumulated user-reported failure documents
+for incremental model improvement.
+"""
+
+import logging
+from datetime import datetime
+from uuid import UUID
+
+from sqlalchemy import func
+from sqlmodel import select
+
+from backend.data.database import get_session_context
+from backend.data.admin_models import FineTunePoolEntry
+from backend.data.repositories.base import BaseRepository
+
+logger = logging.getLogger(__name__)
+
+
+class FineTunePoolRepository(BaseRepository[FineTunePoolEntry]):
+    """Repository for fine-tune pool management."""
+
+    def add_document(
+        self,
+        document_id: str | UUID,
+        added_by: str | None = None,
+        reason: str | None = None,
+    ) -> FineTunePoolEntry:
+        """Add a document to the fine-tune pool."""
+        with get_session_context() as session:
+            entry = FineTunePoolEntry(
+                document_id=UUID(str(document_id)),
+                added_by=added_by,
+                reason=reason,
+            )
+            session.add(entry)
+            session.commit()
+            session.refresh(entry)
+            session.expunge(entry)
+            return entry
+
+    def get_entry(self, entry_id: str | UUID) -> FineTunePoolEntry | None:
+        """Get a pool entry by ID."""
+        with get_session_context() as session:
+            entry = session.get(FineTunePoolEntry, UUID(str(entry_id)))
+            if entry:
+                session.expunge(entry)
+            return entry
+
+    def get_by_document(self, document_id: str | UUID) -> FineTunePoolEntry | None:
+        """Get pool entry for a document."""
+        with get_session_context() as session:
+            result = session.exec(
+                select(FineTunePoolEntry).where(
+                    FineTunePoolEntry.document_id == UUID(str(document_id))
+                )
+            ).first()
+            if result:
+                session.expunge(result)
+            return result
+
+    def get_paginated(
+        self,
+        verified_only: bool = False,
+        limit: int = 20,
+        offset: int = 0,
+    ) -> tuple[list[FineTunePoolEntry], int]:
+        """List pool entries with pagination."""
+        with get_session_context() as session:
+            query = select(FineTunePoolEntry)
+            count_query = select(func.count()).select_from(FineTunePoolEntry)
+            if verified_only:
+                query = query.where(FineTunePoolEntry.is_verified == True)
+                count_query = count_query.where(FineTunePoolEntry.is_verified == True)
+            total = session.exec(count_query).one()
+            entries = session.exec(
+                query.order_by(FineTunePoolEntry.created_at.desc())
+                .offset(offset)
+                .limit(limit)
+            ).all()
+            for e in entries:
+                session.expunge(e)
+            return list(entries), total
+
+    def get_pool_count(self, verified_only: bool = True) -> int:
+        """Get count of entries in the pool."""
+        with get_session_context() as session:
+            query = select(func.count()).select_from(FineTunePoolEntry)
+            if verified_only:
+                query = query.where(FineTunePoolEntry.is_verified == True)
+            return session.exec(query).one()
+
+    def get_all_document_ids(self, verified_only: bool = True) -> list[UUID]:
+        """Get all document IDs in the pool."""
+        with get_session_context() as session:
+            query = select(FineTunePoolEntry.document_id)
+            if verified_only:
+                query = query.where(FineTunePoolEntry.is_verified == True)
+            results = session.exec(query).all()
+            return list(results)
+
+    def verify_entry(
+        self,
+        entry_id: str | UUID,
+        verified_by: str | None = None,
+    ) -> FineTunePoolEntry | None:
+        """Mark a pool entry as verified."""
+        with get_session_context() as session:
+            entry = session.get(FineTunePoolEntry, UUID(str(entry_id)))
+            if not entry:
+                return None
+            entry.is_verified = True
+            entry.verified_at = datetime.utcnow()
+            entry.verified_by = verified_by
+            session.add(entry)
+            session.commit()
+            session.refresh(entry)
+            session.expunge(entry)
+            return entry
+
+    def remove_entry(self, entry_id: str | UUID) -> bool:
+        """Remove an entry from the pool."""
+        with get_session_context() as session:
+            entry = session.get(FineTunePoolEntry, UUID(str(entry_id)))
+            if not entry:
+                return False
+            session.delete(entry)
+            session.commit()
+            return True

packages/backend/backend/data/repositories/model_version_repository.py

@@ -43,6 +43,10 @@ class ModelVersionRepository(BaseRepository[ModelVersion]):
         training_config: dict[str, Any] | None = None,
         file_size: int | None = None,
         trained_at: datetime | None = None,
+        model_type: str = "base",
+        base_model_version_id: str | UUID | None = None,
+        base_training_dataset_id: str | UUID | None = None,
+        gating_status: str = "pending",
     ) -> ModelVersion:
         """Create a new model version."""
         with get_session_context() as session:
@@ -60,6 +64,10 @@ class ModelVersionRepository(BaseRepository[ModelVersion]):
                 training_config=training_config,
                 file_size=file_size,
                 trained_at=trained_at,
+                model_type=model_type,
+                base_model_version_id=UUID(str(base_model_version_id)) if base_model_version_id else None,
+                base_training_dataset_id=UUID(str(base_training_dataset_id)) if base_training_dataset_id else None,
+                gating_status=gating_status,
             )
             session.add(model)
             session.commit()

packages/backend/backend/pipeline/field_extractor.py

@@ -40,6 +40,7 @@ from .normalizers import (
     EnhancedAmountNormalizer,
     EnhancedDateNormalizer,
 )
+from .value_selector import ValueSelector
 
 
 @dataclass
@@ -169,13 +170,21 @@ class FieldExtractor:
                     overlap_ratio = overlap_area / token_area if token_area > 0 else 0
                     matching_tokens.append((token, overlap_ratio))
 
-        # Sort by overlap ratio and combine text
+        # Sort by overlap ratio
         matching_tokens.sort(key=lambda x: -x[1])
-        raw_text = ' '.join(t[0].text for t in matching_tokens)
 
         # Get field name
         field_name = CLASS_TO_FIELD.get(detection.class_name, detection.class_name)
 
+        # Convert to OCRTokens for value selection, then filter
+        from shared.ocr.paddle_ocr import OCRToken
+        pdf_ocr_tokens = [
+            OCRToken(text=t[0].text, bbox=t[0].bbox, confidence=1.0)
+            for t in matching_tokens
+        ]
+        value_tokens = ValueSelector.select_value_tokens(pdf_ocr_tokens, field_name)
+        raw_text = ' '.join(t.text for t in value_tokens)
+
         # Normalize and validate
         normalized_value, is_valid, validation_error = self._normalize_and_validate(
             field_name, raw_text
@@ -223,13 +232,14 @@ class FieldExtractor:
         # Run OCR on region
         ocr_tokens = self.ocr_engine.extract_from_image(region)
 
-        # Combine all OCR text
-        raw_text = ' '.join(t.text for t in ocr_tokens)
-        ocr_confidence = sum(t.confidence for t in ocr_tokens) / len(ocr_tokens) if ocr_tokens else 0.0
-
         # Get field name
         field_name = CLASS_TO_FIELD.get(detection.class_name, detection.class_name)
 
+        # Select value tokens (filter out label text)
+        value_tokens = ValueSelector.select_value_tokens(ocr_tokens, field_name)
+        raw_text = ' '.join(t.text for t in value_tokens)
+        ocr_confidence = sum(t.confidence for t in ocr_tokens) / len(ocr_tokens) if ocr_tokens else 0.0
+
         # Normalize and validate
         normalized_value, is_valid, validation_error = self._normalize_and_validate(
             field_name, raw_text

packages/backend/backend/pipeline/normalizers/amount.py

@@ -20,26 +20,98 @@ class AmountNormalizer(BaseNormalizer):
     Handles various Swedish amount formats:
     - With decimal: 1 234,56 kr
     - With SEK suffix: 1234.56 SEK
+    - Payment line kronor/ore: 590 00 (space = decimal separator)
     - Multiple amounts (returns the last one, usually the total)
     """
 
+    # Payment line kronor/ore pattern: "590 00" means 590.00 SEK
+    # Only matches when no comma/dot is present (pure digit-space-2digit format)
+    _KRONOR_ORE_PATTERN = re.compile(r'^(\d+)\s+(\d{2})$')
+
     @property
     def field_name(self) -> str:
         return "Amount"
 
+    @classmethod
+    def _try_kronor_ore(cls, text: str) -> NormalizationResult | None:
+        """Try to parse as payment line kronor/ore format.
+
+        Swedish payment lines separate kronor and ore with a space:
+        "590 00" = 590.00 SEK, "15658 00" = 15658.00 SEK
+
+        Only applies when text has no comma or dot (otherwise it's
+        a normal amount format with explicit decimal separator).
+
+        Returns NormalizationResult on success, None if not matched.
+        """
+        if ',' in text or '.' in text:
+            return None
+
+        match = cls._KRONOR_ORE_PATTERN.match(text.strip())
+        if not match:
+            return None
+
+        kronor = match.group(1)
+        ore = match.group(2)
+        try:
+            amount = float(f"{kronor}.{ore}")
+            if amount > 0:
+                return NormalizationResult.success(f"{amount:.2f}")
+        except ValueError:
+            pass
+        return None
+
+    @staticmethod
+    def _parse_amount_str(match: str) -> float | None:
+        """Convert matched amount string to float, detecting European vs Anglo format.
+
+        European: 2.254,50 -> 2254.50 (dot=thousand, comma=decimal)
+        Anglo: 1,234.56 -> 1234.56 (comma=thousand, dot=decimal)
+        Swedish: 1 234,56 -> 1234.56 (space=thousand, comma=decimal)
+        """
+        has_comma = ',' in match
+        has_dot = '.' in match
+        if has_comma and has_dot:
+            if match.rfind(',') > match.rfind('.'):
+                # European: 2.254,50
+                cleaned = match.replace(" ", "").replace(".", "").replace(",", ".")
+            else:
+                # Anglo: 1,234.56
+                cleaned = match.replace(" ", "").replace(",", "")
+        elif has_comma:
+            cleaned = match.replace(" ", "").replace(",", ".")
+        else:
+            cleaned = match.replace(" ", "")
+        try:
+            return float(cleaned)
+        except ValueError:
+            return None
+
     def normalize(self, text: str) -> NormalizationResult:
         text = text.strip()
         if not text:
             return NormalizationResult.failure("Empty text")
 
+        # Early check: payment line kronor/ore format ("590 00" → 590.00)
+        kronor_ore_result = self._try_kronor_ore(text)
+        if kronor_ore_result is not None:
+            return kronor_ore_result
+
         # Split by newlines and process line by line to get the last valid amount
         lines = text.split("\n")
 
         # Collect all valid amounts from all lines
         all_amounts: list[float] = []
 
-        # Pattern for Swedish amount format (with decimals)
+        # Separate patterns for European and Anglo formats
-        amount_pattern = r"(\d[\d\s]*[,\.]\d{2})\s*(?:kr|SEK)?"
+        # (?!\d) lookahead prevents partial matches (e.g. "1,23" in "1,234.56")
+        # European: dot=thousand, comma=decimal (2.254,50 or 1 234,56)
+        # Anglo: comma=thousand, dot=decimal (1,234.56 or 1234.56)
+        amount_pattern = (
+            r"(\d[\d\s.]*,\d{2})(?!\d)\s*(?:kr|SEK)?"
+            r"|"
+            r"(\d[\d\s,]*\.\d{2})(?!\d)\s*(?:kr|SEK)?"
+        )
 
         for line in lines:
             line = line.strip()
@@ -47,15 +119,13 @@ class AmountNormalizer(BaseNormalizer):
                 continue
 
             # Find all amounts in this line
-            matches = re.findall(amount_pattern, line, re.IGNORECASE)
+            for m in re.finditer(amount_pattern, line, re.IGNORECASE):
-            for match in matches:
+                match = m.group(1) or m.group(2)
-                amount_str = match.replace(" ", "").replace(",", ".")
+                if not match:
-                try:
-                    amount = float(amount_str)
-                    if amount > 0:
-                        all_amounts.append(amount)
-                except ValueError:
                     continue
+                amount = self._parse_amount_str(match)
+                if amount is not None and 0 < amount < 10_000_000:
+                    all_amounts.append(amount)
 
         # Return the last amount found (usually the total)
         if all_amounts:
@@ -64,7 +134,7 @@ class AmountNormalizer(BaseNormalizer):
         # Fallback: try shared validator on cleaned text
         cleaned = TextCleaner.normalize_amount_text(text)
         amount = FieldValidators.parse_amount(cleaned)
-        if amount is not None and amount > 0:
+        if amount is not None and 0 < amount < 10_000_000:
             return NormalizationResult.success(f"{amount:.2f}")
 
         # Try to find any decimal number
@@ -74,7 +144,7 @@ class AmountNormalizer(BaseNormalizer):
             amount_str = matches[-1].replace(",", ".")
             try:
                 amount = float(amount_str)
-                if amount > 0:
+                if 0 < amount < 10_000_000:
                     return NormalizationResult.success(f"{amount:.2f}")
             except ValueError:
                 pass
@@ -86,7 +156,7 @@ class AmountNormalizer(BaseNormalizer):
         if match:
             try:
                 amount = float(match.group(1))
-                if amount > 0:
+                if 0 < amount < 10_000_000:
                     return NormalizationResult.success(f"{amount:.2f}")
             except ValueError:
                 pass
@@ -98,7 +168,7 @@ class AmountNormalizer(BaseNormalizer):
             # Take the last/largest number
             try:
                 amount = float(matches[-1])
-                if amount > 0:
+                if 0 < amount < 10_000_000:
                     return NormalizationResult.success(f"{amount:.2f}")
             except ValueError:
                 pass
@@ -122,31 +192,33 @@ class EnhancedAmountNormalizer(AmountNormalizer):
         if not text:
             return NormalizationResult.failure("Empty text")
 
+        # Early check: payment line kronor/ore format ("590 00" → 590.00)
+        kronor_ore_result = self._try_kronor_ore(text)
+        if kronor_ore_result is not None:
+            return kronor_ore_result
+
         # Strategy 1: Apply OCR corrections first
         corrected_text = OCRCorrections.correct_digits(text, aggressive=False).corrected
 
         # Strategy 2: Look for labeled amounts (highest priority)
+        # Use two capture groups: group(1) = European, group(2) = Anglo
         labeled_patterns = [
-            # Swedish patterns
+            # Swedish patterns ((?!\d) prevents partial matches like "1,23" in "1,234.56")
-            (r"(?:att\s+betala|summa|total|belopp)\s*[:\s]*(\d[\d\s]*[,\.]\d{2})", 1.0),
+            (r"(?:att\s+betala|summa|total|belopp)\s*[:\s]*(\d[\d\s.]*,\d{2}(?!\d)|\d[\d\s,]*\.\d{2}(?!\d))", 1.0),
             (
-                r"(?:moms|vat)\s*[:\s]*(\d[\d\s]*[,\.]\d{2})",
+                r"(?:moms|vat)\s*[:\s]*(\d[\d\s.]*,\d{2}(?!\d)|\d[\d\s,]*\.\d{2}(?!\d))",
                 0.8,
             ),  # Lower priority for VAT
             # Generic pattern
-            (r"(\d[\d\s]*[,\.]\d{2})\s*(?:kr|sek|kronor)?", 0.7),
+            (r"(\d[\d\s.]*,\d{2}(?!\d)|\d[\d\s,]*\.\d{2}(?!\d))\s*(?:kr|sek|kronor)?", 0.7),
         ]
 
         candidates: list[tuple[float, float, int]] = []
         for pattern, priority in labeled_patterns:
             for match in re.finditer(pattern, corrected_text, re.IGNORECASE):
-                amount_str = match.group(1).replace(" ", "").replace(",", ".")
+                amount = self._parse_amount_str(match.group(1))
-                try:
+                if amount is not None and 0 < amount < 10_000_000:
-                    amount = float(amount_str)
+                    candidates.append((amount, priority, match.start()))
-                    if 0 < amount < 10_000_000:  # Reasonable range
-                        candidates.append((amount, priority, match.start()))
-                except ValueError:
-                    continue
 
         if candidates:
             # Sort by priority (desc), then by position (later is usually total)

packages/backend/backend/pipeline/normalizers/invoice_number.py

@@ -62,14 +62,25 @@ class InvoiceNumberNormalizer(BaseNormalizer):
                 # Skip if it looks like a date (YYYYMMDD)
                 if len(seq) == 8 and seq.startswith("20"):
                     continue
+                # Skip year-only values (2024, 2025, 2026, etc.)
+                if len(seq) == 4 and seq.startswith("20"):
+                    continue
                 # Skip if too long (likely OCR number)
                 if len(seq) > 10:
                     continue
                 valid_sequences.append(seq)
 
             if valid_sequences:
-                # Return shortest valid sequence
+                # Prefer 4-8 digit sequences (typical invoice numbers),
-                return NormalizationResult.success(min(valid_sequences, key=len))
+                # then closest to 6 digits within that range.
+                # This avoids picking short fragments like "775" from amounts.
+                def _score(seq: str) -> tuple[int, int]:
+                    length = len(seq)
+                    if 4 <= length <= 8:
+                        return (1, -abs(length - 6))
+                    return (0, -length)
+
+                return NormalizationResult.success(max(valid_sequences, key=_score))
 
         # Fallback: extract all digits if nothing else works
         digits = re.sub(r"\D", "", text)

packages/backend/backend/pipeline/normalizers/ocr_number.py

@@ -14,7 +14,7 @@ class OcrNumberNormalizer(BaseNormalizer):
     Normalizes OCR (Optical Character Recognition) reference numbers.
 
     OCR numbers in Swedish payment systems:
-    - Minimum 5 digits
+    - Minimum 2 digits
     - Used for automated payment matching
     """
 
@@ -29,7 +29,7 @@ class OcrNumberNormalizer(BaseNormalizer):
 
         digits = re.sub(r"\D", "", text)
 
-        if len(digits) < 5:
+        if len(digits) < 2:
             return NormalizationResult.failure(
                 f"Too few digits for OCR: {len(digits)}"
             )

packages/backend/backend/pipeline/pipeline.py

@@ -234,7 +234,7 @@ class InferencePipeline:
             confidence_threshold=confidence_threshold,
             device='cuda' if use_gpu else 'cpu'
         )
-        self.extractor = FieldExtractor(ocr_lang=ocr_lang, use_gpu=use_gpu)
+        self.extractor = FieldExtractor(ocr_lang=ocr_lang, use_gpu=use_gpu, dpi=dpi)
         self.payment_line_parser = PaymentLineParser()
         self.dpi = dpi
         self.enable_fallback = enable_fallback
@@ -301,6 +301,27 @@ class InferencePipeline:
             all_extracted = []
             all_ocr_text = []  # Collect OCR text for VAT extraction
 
+            # Check if PDF has readable text layer (avoids OCR for text PDFs)
+            from shared.pdf.extractor import PDFDocument
+            is_text_pdf = False
+            pdf_tokens_by_page: dict[int, list] = {}
+            try:
+                with PDFDocument(pdf_path) as pdf_doc:
+                    is_text_pdf = pdf_doc.is_text_pdf()
+                    if is_text_pdf:
+                        for pg in range(pdf_doc.page_count):
+                            pdf_tokens_by_page[pg] = list(
+                                pdf_doc.extract_text_tokens(pg)
+                            )
+                        logger.info(
+                            "Text PDF detected, extracted %d tokens from %d pages",
+                            sum(len(t) for t in pdf_tokens_by_page.values()),
+                            len(pdf_tokens_by_page),
+                        )
+            except Exception as e:
+                logger.warning("PDF text detection failed, falling back to OCR: %s", e)
+                is_text_pdf = False
+
             # Process each page
             for page_no, image_bytes in render_pdf_to_images(pdf_path, dpi=self.dpi):
                 # Convert to numpy array
@@ -313,7 +334,17 @@ class InferencePipeline:
 
                 # Extract fields from detections
                 for detection in detections:
-                    extracted = self.extractor.extract_from_detection(detection, image_array)
+                    if is_text_pdf and page_no in pdf_tokens_by_page:
+                        extracted = self.extractor.extract_from_detection_with_pdf(
+                            detection,
+                            pdf_tokens_by_page[page_no],
+                            image.width,
+                            image.height,
+                        )
+                    else:
+                        extracted = self.extractor.extract_from_detection(
+                            detection, image_array
+                        )
                     all_extracted.append(extracted)
 
                 # Collect full-page OCR text for VAT extraction (only if business features enabled)
@@ -330,6 +361,7 @@ class InferencePipeline:
             # Fallback if key fields are missing
             if self.enable_fallback and self._needs_fallback(result):
                 self._run_fallback(pdf_path, result)
+                self._dedup_invoice_number(result)
 
             # Extract business invoice features if enabled
             if use_business_features:
@@ -446,9 +478,48 @@ class InferencePipeline:
             # Store bbox for each field (useful for payment_line and other fields)
             result.bboxes[field_name] = best.bbox
 
+        # Validate date consistency
+        self._validate_dates(result)
+
         # Perform cross-validation if payment_line is detected
         self._cross_validate_payment_line(result)
 
+        # Remove InvoiceNumber if it duplicates OCR or Bankgiro
+        self._dedup_invoice_number(result)
+
+    def _validate_dates(self, result: InferenceResult) -> None:
+        """Remove InvoiceDueDate if it is earlier than InvoiceDate."""
+        invoice_date = result.fields.get('InvoiceDate')
+        due_date = result.fields.get('InvoiceDueDate')
+        if invoice_date and due_date and due_date < invoice_date:
+            del result.fields['InvoiceDueDate']
+            result.confidence.pop('InvoiceDueDate', None)
+            result.bboxes.pop('InvoiceDueDate', None)
+
+    def _dedup_invoice_number(self, result: InferenceResult) -> None:
+        """Remove InvoiceNumber if it duplicates OCR or Bankgiro digits."""
+        inv_num = result.fields.get('InvoiceNumber')
+        if not inv_num:
+            return
+        inv_digits = re.sub(r'\D', '', str(inv_num))
+
+        # Check against OCR
+        ocr = result.fields.get('OCR')
+        if ocr and inv_digits == re.sub(r'\D', '', str(ocr)):
+            del result.fields['InvoiceNumber']
+            result.confidence.pop('InvoiceNumber', None)
+            result.bboxes.pop('InvoiceNumber', None)
+            return
+
+        # Check against Bankgiro (exact or substring match)
+        bg = result.fields.get('Bankgiro')
+        if bg:
+            bg_digits = re.sub(r'\D', '', str(bg))
+            if inv_digits == bg_digits or inv_digits in bg_digits:
+                del result.fields['InvoiceNumber']
+                result.confidence.pop('InvoiceNumber', None)
+                result.bboxes.pop('InvoiceNumber', None)
+
     def _parse_machine_readable_payment_line(self, payment_line: str) -> tuple[str | None, str | None, str | None]:
         """
         Parse machine-readable Swedish payment line format using unified PaymentLineParser.
@@ -607,10 +678,14 @@ class InferencePipeline:
 
     def _needs_fallback(self, result: InferenceResult) -> bool:
         """Check if fallback OCR is needed."""
-        # Check for key fields
         key_fields = ['Amount', 'InvoiceNumber', 'OCR']
-        missing = sum(1 for f in key_fields if f not in result.fields)
+        important_fields = ['InvoiceDate', 'InvoiceDueDate', 'supplier_organisation_number']
-        return missing >= 2  # Fallback if 2+ key fields missing
+
+        key_missing = sum(1 for f in key_fields if f not in result.fields)
+        important_missing = sum(1 for f in important_fields if f not in result.fields)
+
+        # Fallback if any key field missing OR 2+ important fields missing
+        return key_missing >= 1 or important_missing >= 2
 
     def _run_fallback(self, pdf_path: str | Path, result: InferenceResult) -> None:
         """Run full-page OCR fallback."""
@@ -642,12 +717,13 @@ class InferencePipeline:
         """Extract fields using regex patterns (fallback)."""
         patterns = {
             'Amount': [
-                r'(?:att\s*betala|summa|total|belopp)\s*[:.]?\s*([\d\s,\.]+)\s*(?:SEK|kr)?',
+                r'(?:att\s+betala)\s*[:.]?\s*([\d\s\.]*\d+[,\.]\d{2})\s*(?:SEK|kr)?',
-                r'([\d\s,\.]+)\s*(?:SEK|kr)\s*$',
+                r'(?:summa|total|belopp)\s*[:.]?\s*([\d\s\.]*\d+[,\.]\d{2})\s*(?:SEK|kr)?',
+                r'([\d\s\.]*\d+[,\.]\d{2})\s*(?:SEK|kr)\s*$',
             ],
             'Bankgiro': [
                 r'(?:bankgiro|bg)\s*[:.]?\s*(\d{3,4}[-\s]?\d{4})',
-                r'(\d{4}[-\s]\d{4})\s*(?=\s|$)',
+                r'(?<!\d)(\d{3,4}[-\s]\d{4})(?!\d)',
             ],
             'OCR': [
                 r'(?:ocr|referens)\s*[:.]?\s*(\d{10,25})',
@@ -655,6 +731,20 @@ class InferencePipeline:
             'InvoiceNumber': [
                 r'(?:fakturanr|fakturanummer|invoice)\s*[:.]?\s*(\d+)',
             ],
+            'InvoiceDate': [
+                r'(?:fakturadatum|invoice\s*date)\s*[:.]?\s*(\d{4}[-/]\d{2}[-/]\d{2})',
+                r'(?:fakturadatum|invoice\s*date)\s*[:.]?\s*(\d{2}[-/]\d{2}[-/]\d{4})',
+            ],
+            'InvoiceDueDate': [
+                r'(?:f[oö]rfallo(?:dag|datum)?|due\s*date|betala\s*senast)\s*[:.]?\s*(\d{4}[-/]\d{2}[-/]\d{2})',
+                r'(?:f[oö]rfallo(?:dag|datum)?|due\s*date|betala\s*senast)\s*[:.]?\s*(\d{2}[-/]\d{2}[-/]\d{4})',
+            ],
+            'supplier_organisation_number': [
+                r'(?:org\.?\s*n[ru]|organisationsnummer)\s*[:.]?\s*(\d{6}[-\s]?\d{4})',
+            ],
+            'Plusgiro': [
+                r'(?:plusgiro|pg)\s*[:.]?\s*(\d[\d\s-]{4,12}\d)',
+            ],
         }
 
         for field_name, field_patterns in patterns.items():
@@ -677,6 +767,22 @@ class InferencePipeline:
                         digits = re.sub(r'\D', '', value)
                         if len(digits) == 8:
                             value = f"{digits[:4]}-{digits[4:]}"
+                    elif field_name in ('InvoiceDate', 'InvoiceDueDate'):
+                        # Normalize DD/MM/YYYY to YYYY-MM-DD
+                        date_match = re.match(r'(\d{2})[-/](\d{2})[-/](\d{4})', value)
+                        if date_match:
+                            value = f"{date_match.group(3)}-{date_match.group(2)}-{date_match.group(1)}"
+                        # Replace / with -
+                        value = value.replace('/', '-')
+                    elif field_name == 'InvoiceNumber':
+                        # Skip year-like values (2024, 2025, 2026, etc.)
+                        if re.match(r'^20\d{2}$', value):
+                            continue
+                    elif field_name == 'supplier_organisation_number':
+                        # Ensure NNNNNN-NNNN format
+                        digits = re.sub(r'\D', '', value)
+                        if len(digits) == 10:
+                            value = f"{digits[:6]}-{digits[6:]}"
 
                     result.fields[field_name] = value
                     result.confidence[field_name] = 0.5  # Lower confidence for regex

packages/backend/backend/pipeline/value_selector.py

@@ -0,0 +1,172 @@
+"""
+Value Selector Module.
+
+Selects the most likely value token(s) from OCR output per field type,
+filtering out label text before sending to normalizer.
+
+Stateless and pure -- easy to test, no side effects.
+"""
+
+import re
+from typing import Final
+
+from shared.ocr.paddle_ocr import OCRToken
+
+
+# Swedish label keywords commonly found near field values
+LABEL_KEYWORDS: Final[frozenset[str]] = frozenset({
+    "fakturanummer", "fakturanr", "fakturadatum", "forfallodag", "forfalldatum",
+    "bankgiro", "plusgiro", "bg", "pg", "ocr", "belopp", "summa",
+    "total", "att", "betala", "kundnummer", "organisationsnummer",
+    "org", "nr", "datum", "nummer", "ref", "referens",
+    "momsreg", "vat", "moms", "sek", "kr",
+    "org.nr", "kund", "faktura", "invoice",
+})
+
+# Patterns
+_DATE_PATTERN = re.compile(
+    r"\d{4}[-./]\d{2}[-./]\d{2}"   # 2024-01-15, 2024.01.15
+    r"|"
+    r"\d{2}[-./]\d{2}[-./]\d{4}"   # 15/01/2024
+    r"|"
+    r"\d{8}"                        # 20240115
+)
+
+_AMOUNT_PATTERN = re.compile(
+    r"\d[\d\s.]*,\d{2}(?:\s*(?:kr|SEK))?$"   # European: 2.254,50 SEK
+    r"|"
+    r"\d[\d\s,]*\.\d{2}(?:\s*(?:kr|SEK))?$"  # Anglo: 1,234.56 SEK
+)
+
+_BANKGIRO_PATTERN = re.compile(
+    r"^\d{3,4}-\d{4}$"             # 123-4567
+    r"|"
+    r"^\d{7,8}$"                    # 1234567 or 12345678
+)
+
+_PLUSGIRO_PATTERN = re.compile(
+    r"^\d+-\d$"                     # 12345-6
+    r"|"
+    r"^\d{2,8}$"                    # 1234567
+)
+
+_ORG_NUMBER_PATTERN = re.compile(
+    r"\d{6}-?\d{4}"                 # 556123-4567 or 5561234567
+)
+
+
+def _is_label(text: str) -> bool:
+    """Check if token text is a known Swedish label keyword."""
+    cleaned = text.lower().rstrip(":").strip()
+    return cleaned in LABEL_KEYWORDS
+
+
+def _count_digits(text: str) -> int:
+    """Count digit characters in text."""
+    return sum(c.isdigit() for c in text)
+
+
+class ValueSelector:
+    """Selects value token(s) from OCR output, filtering label text.
+
+    Pure static methods -- no state, no side effects.
+    Fallback: always returns all tokens if no pattern matches,
+    so this can never make results worse than current behavior.
+    """
+
+    @staticmethod
+    def select_value_tokens(
+        tokens: list[OCRToken],
+        field_name: str,
+    ) -> list[OCRToken]:
+        """Select the most likely value token(s) for a given field.
+
+        Args:
+            tokens: OCR tokens from the detected region.
+            field_name: Normalized field name (e.g. "InvoiceDate", "Amount").
+
+        Returns:
+            Filtered list of value tokens. Falls back to all tokens
+            if no field-specific pattern matches.
+        """
+        if not tokens:
+            return []
+
+        selector = _FIELD_SELECTORS.get(field_name, _fallback_selector)
+        selected = selector(tokens)
+
+        # Safety: never return empty if we had input tokens
+        if not selected:
+            return list(tokens)
+
+        return selected
+
+    @staticmethod
+    def _select_date(tokens: list[OCRToken]) -> list[OCRToken]:
+        return _select_by_pattern(tokens, _DATE_PATTERN)
+
+    @staticmethod
+    def _select_amount(tokens: list[OCRToken]) -> list[OCRToken]:
+        return _select_by_pattern(tokens, _AMOUNT_PATTERN)
+
+    @staticmethod
+    def _select_bankgiro(tokens: list[OCRToken]) -> list[OCRToken]:
+        return _select_by_pattern(tokens, _BANKGIRO_PATTERN)
+
+    @staticmethod
+    def _select_plusgiro(tokens: list[OCRToken]) -> list[OCRToken]:
+        return _select_by_pattern(tokens, _PLUSGIRO_PATTERN)
+
+    @staticmethod
+    def _select_org_number(tokens: list[OCRToken]) -> list[OCRToken]:
+        return _select_by_pattern(tokens, _ORG_NUMBER_PATTERN)
+
+    @staticmethod
+    def _select_ocr_number(tokens: list[OCRToken]) -> list[OCRToken]:
+        """Select token with the longest digit sequence (min 2 digits)."""
+        best: OCRToken | None = None
+        best_count = 0
+        for token in tokens:
+            digit_count = _count_digits(token.text)
+            if digit_count >= 2 and digit_count > best_count:
+                best = token
+                best_count = digit_count
+        return [best] if best else []
+
+    @staticmethod
+    def _select_by_label_exclusion(tokens: list[OCRToken]) -> list[OCRToken]:
+        """Remove label keywords, keep remaining tokens."""
+        return [t for t in tokens if not _is_label(t.text)]
+
+    @staticmethod
+    def _select_payment_line(tokens: list[OCRToken]) -> list[OCRToken]:
+        """Payment line keeps all tokens (needs full text)."""
+        return list(tokens)
+
+
+def _select_by_pattern(
+    tokens: list[OCRToken],
+    pattern: re.Pattern[str],
+) -> list[OCRToken]:
+    """Select tokens matching a regex pattern."""
+    return [t for t in tokens if pattern.search(t.text.strip())]
+
+
+def _fallback_selector(tokens: list[OCRToken]) -> list[OCRToken]:
+    """Default: return all tokens unchanged."""
+    return list(tokens)
+
+
+# Map field names to selector functions
+_FIELD_SELECTORS: Final[dict[str, callable]] = {
+    "InvoiceDate": ValueSelector._select_date,
+    "InvoiceDueDate": ValueSelector._select_date,
+    "Amount": ValueSelector._select_amount,
+    "Bankgiro": ValueSelector._select_bankgiro,
+    "Plusgiro": ValueSelector._select_plusgiro,
+    "OCR": ValueSelector._select_ocr_number,
+    "InvoiceNumber": ValueSelector._select_by_label_exclusion,
+    "supplier_org_number": ValueSelector._select_org_number,
+    "customer_number": ValueSelector._select_by_label_exclusion,
+    "payment_line": ValueSelector._select_payment_line,
+}

packages/backend/backend/web/api/v1/admin/training/__init__.py

@@ -12,6 +12,7 @@ from .documents import register_document_routes
 from .export import register_export_routes
 from .datasets import register_dataset_routes
 from .models import register_model_routes
+from .pool import register_pool_routes
 
 
 def create_training_router() -> APIRouter:
@@ -23,6 +24,7 @@ def create_training_router() -> APIRouter:
     register_export_routes(router)
     register_dataset_routes(router)
     register_model_routes(router)
+    register_pool_routes(router)
 
     return router
 

packages/backend/backend/web/api/v1/admin/training/datasets.py

@@ -12,6 +12,7 @@ from backend.web.core.auth import (
     AnnotationRepoDep,
     ModelVersionRepoDep,
     TrainingTaskRepoDep,
+    FineTunePoolRepoDep,
 )
 from backend.web.schemas.admin import (
     DatasetCreateRequest,
@@ -233,6 +234,7 @@ def register_dataset_routes(router: APIRouter) -> None:
         datasets_repo: DatasetRepoDep,
         models: ModelVersionRepoDep,
         tasks: TrainingTaskRepoDep,
+        pool: FineTunePoolRepoDep,
     ) -> TrainingTaskResponse:
         """Create a training task from a dataset.
 
@@ -261,13 +263,39 @@ def register_dataset_routes(router: APIRouter) -> None:
                     status_code=404,
                     detail=f"Base model version not found: {base_model_version_id}",
                 )
+            # Chain prevention: never fine-tune from a fine-tuned model
+            if getattr(base_model, "model_type", "base") == "finetune":
+                original_base_id = getattr(base_model, "base_model_version_id", None)
+                raise HTTPException(
+                    status_code=400,
+                    detail=(
+                        f"Cannot chain fine-tunes. Model {base_model.version} is already "
+                        f"a fine-tuned model. Select the original base model instead"
+                        f"{f' (base_model_version_id: {original_base_id})' if original_base_id else ''}."
+                    ),
+                )
+            # Pool threshold: require minimum verified pool entries for fine-tuning
+            from backend.web.services.data_mixer import MIN_POOL_SIZE
+
+            verified_count = pool.get_pool_count(verified_only=True)
+            if verified_count < MIN_POOL_SIZE:
+                raise HTTPException(
+                    status_code=400,
+                    detail=(
+                        f"Fine-tuning requires at least {MIN_POOL_SIZE} verified pool entries "
+                        f"(currently {verified_count}). Add more documents to the fine-tune "
+                        f"pool and verify them before starting fine-tuning."
+                    ),
+                )
+
             # Store the resolved model path for the training worker
             config_dict["base_model_path"] = base_model.model_path
             config_dict["base_model_version"] = base_model.version
             logger.info(
-                "Incremental training: using model %s (%s) as base",
+                "Fine-tuning: using base model %s (%s) with %d verified pool entries",
                 base_model.version,
                 base_model.model_path,
+                verified_count,
             )
 
         task_id = tasks.create(

packages/backend/backend/web/api/v1/admin/training/export.py

@@ -124,16 +124,11 @@ def register_export_routes(router: APIRouter) -> None:
                             x1 = ann.x_center * img_width + half_w
                             y1 = ann.y_center * img_height + half_h
 
-                            # Use manual_mode for manual/imported annotations
+                            # Apply uniform bbox expansion
-                            manual_mode = ann.source in ("manual", "imported")
-
-                            # Apply field-specific bbox expansion
                             ex0, ey0, ex1, ey1 = expand_bbox(
                                 bbox=(x0, y0, x1, y1),
                                 image_width=img_width,
                                 image_height=img_height,
-                                field_type=ann.class_name,
-                                manual_mode=manual_mode,
                             )
 
                             # Convert back to normalized YOLO format

packages/backend/backend/web/api/v1/admin/training/models.py

@@ -88,6 +88,9 @@ def register_model_routes(router: APIRouter) -> None:
                     name=m.name,
                     status=m.status,
                     is_active=m.is_active,
+                    model_type=getattr(m, "model_type", "base"),
+                    base_model_version_id=str(m.base_model_version_id) if getattr(m, "base_model_version_id", None) else None,
+                    gating_status=getattr(m, "gating_status", "pending"),
                     metrics_mAP=m.metrics_mAP,
                     document_count=m.document_count,
                     trained_at=m.trained_at,
@@ -121,6 +124,9 @@ def register_model_routes(router: APIRouter) -> None:
                 name=model.name,
                 status=model.status,
                 is_active=model.is_active,
+                model_type=getattr(model, "model_type", "base"),
+                base_model_version_id=str(model.base_model_version_id) if getattr(model, "base_model_version_id", None) else None,
+                gating_status=getattr(model, "gating_status", "pending"),
                 metrics_mAP=model.metrics_mAP,
                 document_count=model.document_count,
                 trained_at=model.trained_at,
@@ -153,6 +159,10 @@ def register_model_routes(router: APIRouter) -> None:
             model_path=model.model_path,
             status=model.status,
             is_active=model.is_active,
+            model_type=getattr(model, "model_type", "base"),
+            base_model_version_id=str(model.base_model_version_id) if getattr(model, "base_model_version_id", None) else None,
+            base_training_dataset_id=str(model.base_training_dataset_id) if getattr(model, "base_training_dataset_id", None) else None,
+            gating_status=getattr(model, "gating_status", "pending"),
             task_id=str(model.task_id) if model.task_id else None,
             dataset_id=str(model.dataset_id) if model.dataset_id else None,
             metrics_mAP=model.metrics_mAP,
@@ -209,6 +219,25 @@ def register_model_routes(router: APIRouter) -> None:
     ) -> ModelVersionResponse:
         """Activate a model version for inference."""
         _validate_uuid(version_id, "version_id")
+
+        # Check gating status before activation (for fine-tuned models)
+        pre_check = models.get(version_id)
+        if not pre_check:
+            raise HTTPException(status_code=404, detail="Model version not found")
+        model_type = getattr(pre_check, "model_type", "base")
+        gating_status = getattr(pre_check, "gating_status", "skipped")
+        if model_type == "finetune":
+            if gating_status == "reject":
+                raise HTTPException(
+                    status_code=400,
+                    detail="Model failed deployment gating validation. Cannot activate a rejected model.",
+                )
+            if gating_status == "pending":
+                raise HTTPException(
+                    status_code=400,
+                    detail="Model gating validation not yet completed. Wait for validation to finish.",
+                )
+
         model = models.activate(version_id)
         if not model:
             raise HTTPException(status_code=404, detail="Model version not found")
@@ -227,6 +256,8 @@ def register_model_routes(router: APIRouter) -> None:
         message = "Model version activated for inference"
         if model_reloaded:
             message += " (model reloaded)"
+        if gating_status == "review":
+            message += " (WARNING: gating status is REVIEW - manual inspection recommended)"
 
         return ModelVersionResponse(
             version_id=str(model.version_id),

packages/backend/backend/web/api/v1/admin/training/pool.py

@@ -0,0 +1,159 @@
+"""Fine-Tune Pool Endpoints."""
+
+import logging
+from typing import Annotated
+
+from fastapi import APIRouter, HTTPException, Query
+
+from backend.web.core.auth import AdminTokenDep, FineTunePoolRepoDep, DocumentRepoDep
+from backend.web.schemas.admin.pool import (
+    PoolAddRequest,
+    PoolEntryItem,
+    PoolEntryResponse,
+    PoolListResponse,
+    PoolStatsResponse,
+)
+
+from ._utils import _validate_uuid
+
+logger = logging.getLogger(__name__)
+
+
+def register_pool_routes(router: APIRouter) -> None:
+    """Register fine-tune pool endpoints on the router."""
+
+    @router.post(
+        "/pool",
+        response_model=PoolEntryResponse,
+        summary="Add document to fine-tune pool",
+        description="Add a labeled document to the fine-tune pool for future fine-tuning.",
+    )
+    async def add_to_pool(
+        request: PoolAddRequest,
+        admin_token: AdminTokenDep,
+        pool: FineTunePoolRepoDep,
+        docs: DocumentRepoDep,
+    ) -> PoolEntryResponse:
+        """Add a document to the fine-tune pool."""
+        _validate_uuid(request.document_id, "document_id")
+
+        # Verify document exists
+        doc = docs.get(request.document_id)
+        if not doc:
+            raise HTTPException(status_code=404, detail="Document not found")
+
+        # Check if already in pool
+        existing = pool.get_by_document(request.document_id)
+        if existing:
+            raise HTTPException(
+                status_code=409,
+                detail=f"Document already in fine-tune pool (entry_id: {existing.entry_id})",
+            )
+
+        entry = pool.add_document(
+            document_id=request.document_id,
+            added_by=admin_token,
+            reason=request.reason,
+        )
+
+        return PoolEntryResponse(
+            entry_id=str(entry.entry_id),
+            message="Document added to fine-tune pool",
+        )
+
+    @router.get(
+        "/pool",
+        response_model=PoolListResponse,
+        summary="List fine-tune pool entries",
+    )
+    async def list_pool_entries(
+        admin_token: AdminTokenDep,
+        pool: FineTunePoolRepoDep,
+        verified_only: Annotated[bool, Query(description="Filter to verified only")] = False,
+        limit: Annotated[int, Query(ge=1, le=100)] = 20,
+        offset: Annotated[int, Query(ge=0)] = 0,
+    ) -> PoolListResponse:
+        """List entries in the fine-tune pool."""
+        entries, total = pool.get_paginated(
+            verified_only=verified_only,
+            limit=limit,
+            offset=offset,
+        )
+
+        return PoolListResponse(
+            total=total,
+            limit=limit,
+            offset=offset,
+            entries=[
+                PoolEntryItem(
+                    entry_id=str(e.entry_id),
+                    document_id=str(e.document_id),
+                    added_by=e.added_by,
+                    reason=e.reason,
+                    is_verified=e.is_verified,
+                    verified_at=e.verified_at,
+                    verified_by=e.verified_by,
+                    created_at=e.created_at,
+                )
+                for e in entries
+            ],
+        )
+
+    @router.get(
+        "/pool/stats",
+        response_model=PoolStatsResponse,
+        summary="Get fine-tune pool statistics",
+    )
+    async def get_pool_stats(
+        admin_token: AdminTokenDep,
+        pool: FineTunePoolRepoDep,
+    ) -> PoolStatsResponse:
+        """Get statistics about the fine-tune pool."""
+        total = pool.get_pool_count(verified_only=False)
+        verified = pool.get_pool_count(verified_only=True)
+
+        return PoolStatsResponse(
+            total_entries=total,
+            verified_entries=verified,
+            unverified_entries=total - verified,
+            is_ready=verified >= 50,
+        )
+
+    @router.post(
+        "/pool/{entry_id}/verify",
+        response_model=PoolEntryResponse,
+        summary="Verify a pool entry",
+        description="Mark a pool entry as verified (human-reviewed).",
+    )
+    async def verify_pool_entry(
+        entry_id: str,
+        admin_token: AdminTokenDep,
+        pool: FineTunePoolRepoDep,
+    ) -> PoolEntryResponse:
+        """Mark a pool entry as verified."""
+        _validate_uuid(entry_id, "entry_id")
+        entry = pool.verify_entry(entry_id, verified_by=admin_token)
+        if not entry:
+            raise HTTPException(status_code=404, detail="Pool entry not found")
+
+        return PoolEntryResponse(
+            entry_id=str(entry.entry_id),
+            message="Pool entry verified",
+        )
+
+    @router.delete(
+        "/pool/{entry_id}",
+        summary="Remove from fine-tune pool",
+    )
+    async def remove_from_pool(
+        entry_id: str,
+        admin_token: AdminTokenDep,
+        pool: FineTunePoolRepoDep,
+    ) -> dict:
+        """Remove a document from the fine-tune pool."""
+        _validate_uuid(entry_id, "entry_id")
+        success = pool.remove_entry(entry_id)
+        if not success:
+            raise HTTPException(status_code=404, detail="Pool entry not found")
+
+        return {"message": "Entry removed from fine-tune pool"}

packages/backend/backend/web/core/auth.py

@@ -17,6 +17,7 @@ from backend.data.repositories import (
     TrainingTaskRepository,
     ModelVersionRepository,
     BatchUploadRepository,
+    FineTunePoolRepository,
 )
 
 
@@ -95,6 +96,12 @@ def get_batch_upload_repository() -> BatchUploadRepository:
     return BatchUploadRepository()
 
 
+@lru_cache(maxsize=1)
+def get_finetune_pool_repository() -> FineTunePoolRepository:
+    """Get the FineTunePoolRepository instance (thread-safe singleton)."""
+    return FineTunePoolRepository()
+
+
 def reset_all_repositories() -> None:
     """Reset all repository instances (for testing)."""
     get_token_repository.cache_clear()
@@ -104,6 +111,7 @@ def reset_all_repositories() -> None:
     get_training_task_repository.cache_clear()
     get_model_version_repository.cache_clear()
     get_batch_upload_repository.cache_clear()
+    get_finetune_pool_repository.cache_clear()
 
 
 # Repository dependency type aliases
@@ -113,3 +121,4 @@ DatasetRepoDep = Annotated[DatasetRepository, Depends(get_dataset_repository)]
 TrainingTaskRepoDep = Annotated[TrainingTaskRepository, Depends(get_training_task_repository)]
 ModelVersionRepoDep = Annotated[ModelVersionRepository, Depends(get_model_version_repository)]
 BatchUploadRepoDep = Annotated[BatchUploadRepository, Depends(get_batch_upload_repository)]
+FineTunePoolRepoDep = Annotated[FineTunePoolRepository, Depends(get_finetune_pool_repository)]

packages/backend/backend/web/core/scheduler.py

@@ -16,6 +16,7 @@ from backend.data.repositories import (
     ModelVersionRepository,
     DocumentRepository,
     AnnotationRepository,
+    FineTunePoolRepository,
 )
 from backend.web.core.task_interface import TaskRunner, TaskStatus
 from backend.web.services.storage_helpers import get_storage_helper
@@ -47,6 +48,7 @@ class TrainingScheduler(TaskRunner):
         self._model_versions = ModelVersionRepository()
         self._documents = DocumentRepository()
         self._annotations = AnnotationRepository()
+        self._pool = FineTunePoolRepository()
 
     @property
     def name(self) -> str:
@@ -168,7 +170,7 @@ class TrainingScheduler(TaskRunner):
 
         try:
             # Get training configuration
-            model_name = config.get("model_name", "yolo11n.pt")
+            model_name = config.get("model_name", "yolo26s.pt")
             base_model_path = config.get("base_model_path")  # For incremental training
             epochs = config.get("epochs", 100)
             batch_size = config.get("batch_size", 16)
@@ -182,14 +184,19 @@ class TrainingScheduler(TaskRunner):
             augmentation_multiplier = config.get("augmentation_multiplier", 2)
 
             # Determine which model to use as base
-            if base_model_path:
+            is_finetune = bool(base_model_path)
-                # Incremental training: use existing trained model
+            if is_finetune:
+                # Fine-tuning: use existing trained model as base
                 if not Path(base_model_path).exists():
                     raise ValueError(f"Base model not found: {base_model_path}")
                 effective_model = base_model_path
+                # Override parameters for fine-tuning (best practices)
+                epochs = config.get("epochs", 10)
+                learning_rate = config.get("learning_rate", 0.001)
                 self._training_tasks.add_log(
                     task_id, "INFO",
-                    f"Incremental training from: {base_model_path}",
+                    f"Fine-tuning from: {base_model_path} "
+                    f"(epochs={epochs}, freeze=10, cos_lr=true)",
                 )
             else:
                 # Train from pretrained model
@@ -229,10 +236,16 @@ class TrainingScheduler(TaskRunner):
                         f"(total: {aug_result['total_images']})",
                     )
 
+            # Build mixed dataset for fine-tuning (pool samples + old data)
+            if is_finetune and dataset_id:
+                data_yaml, dataset_path = self._build_mixed_finetune_dataset(
+                    task_id, dataset_path, data_yaml,
+                )
+
             # Run YOLO training
             result = self._run_yolo_training(
                 task_id=task_id,
-                model_name=effective_model,  # Use base model or pretrained model
+                model_name=effective_model,
                 data_yaml=data_yaml,
                 epochs=epochs,
                 batch_size=batch_size,
@@ -240,6 +253,8 @@ class TrainingScheduler(TaskRunner):
                 learning_rate=learning_rate,
                 device=device,
                 project_name=project_name,
+                freeze=10 if is_finetune else 0,
+                cos_lr=is_finetune,
             )
 
             # Update task with results
@@ -261,13 +276,23 @@ class TrainingScheduler(TaskRunner):
                 )
 
             # Auto-create model version for the completed training
-            self._create_model_version_from_training(
+            model_version = self._create_model_version_from_training(
                 task_id=task_id,
                 config=config,
                 dataset_id=dataset_id,
                 result=result,
             )
 
+            # Auto-run gating validation for fine-tuned models
+            if is_finetune and model_version:
+                self._run_gating_after_finetune(
+                    task_id=task_id,
+                    model_version=model_version,
+                    config=config,
+                    data_yaml=data_yaml,
+                    result=result,
+                )
+
         except Exception as e:
             logger.error(f"Training task {task_id} failed: {e}")
             self._training_tasks.add_log(task_id, "ERROR", f"Training failed: {e}")
@@ -286,13 +311,16 @@ class TrainingScheduler(TaskRunner):
         config: dict[str, Any],
         dataset_id: str | None,
         result: dict[str, Any],
-    ) -> None:
+    ) -> Any | None:
-        """Create a model version entry from completed training."""
+        """Create a model version entry from completed training.
+
+        Returns the created model version, or None on failure.
+        """
         try:
             model_path = result.get("model_path")
             if not model_path:
                 logger.warning(f"No model path in training result for task {task_id}")
-                return
+                return None
 
             # Get task info for name
             task = self._training_tasks.get(task_id)
@@ -322,6 +350,12 @@ class TrainingScheduler(TaskRunner):
                 if dataset:
                     document_count = dataset.total_documents
 
+            # Determine model lineage
+            is_finetune = bool(config.get("base_model_path"))
+            model_type = "finetune" if is_finetune else "base"
+            base_model_version_id = config.get("base_model_version_id") if is_finetune else None
+            gating_status = "pending" if is_finetune else "skipped"
+
             # Create model version
             model_version = self._model_versions.create(
                 version=version,
@@ -337,6 +371,10 @@ class TrainingScheduler(TaskRunner):
                 training_config=config,
                 file_size=file_size,
                 trained_at=datetime.utcnow(),
+                model_type=model_type,
+                base_model_version_id=base_model_version_id,
+                base_training_dataset_id=dataset_id if not is_finetune else None,
+                gating_status=gating_status,
             )
 
             logger.info(
@@ -349,12 +387,105 @@ class TrainingScheduler(TaskRunner):
                 f"Model version {version} created (mAP: {mAP_display})",
             )
 
+            return model_version
+
         except Exception as e:
             logger.error(f"Failed to create model version for task {task_id}: {e}")
             self._training_tasks.add_log(
                 task_id, "WARNING",
                 f"Failed to auto-create model version: {e}",
             )
+            return None
+
+    def _build_mixed_finetune_dataset(
+        self,
+        task_id: str,
+        base_dataset_path: Path,
+        original_data_yaml: str,
+    ) -> tuple[str, Path]:
+        """Build a mixed dataset for fine-tuning.
+
+        Combines verified pool samples with randomly sampled old training data.
+
+        Returns:
+            Tuple of (data_yaml path, dataset_path) for the mixed dataset.
+            Falls back to original if mixing fails or pool is empty.
+        """
+        try:
+            from backend.web.services.data_mixer import build_mixed_dataset
+
+            pool_doc_ids = self._pool.get_all_document_ids(verified_only=True)
+            if not pool_doc_ids:
+                self._training_tasks.add_log(
+                    task_id, "INFO",
+                    "No verified pool entries found, using original dataset",
+                )
+                return original_data_yaml, base_dataset_path
+
+            mixed_output = base_dataset_path.parent / f"mixed_{task_id[:8]}"
+            mix_result = build_mixed_dataset(
+                pool_document_ids=pool_doc_ids,
+                base_dataset_path=base_dataset_path,
+                output_dir=mixed_output,
+            )
+
+            self._training_tasks.add_log(
+                task_id, "INFO",
+                f"Data mixing: {mix_result['new_images']} new + "
+                f"{mix_result['old_images']} old = {mix_result['total_images']} total "
+                f"(ratio: {mix_result['mixing_ratio']}x)",
+            )
+
+            return mix_result["data_yaml"], mixed_output
+
+        except Exception as e:
+            logger.error(f"Data mixing failed for task {task_id}: {e}")
+            self._training_tasks.add_log(
+                task_id, "WARNING",
+                f"Data mixing failed: {e}. Using original dataset.",
+            )
+            return original_data_yaml, base_dataset_path
+
+    def _run_gating_after_finetune(
+        self,
+        task_id: str,
+        model_version: Any,
+        config: dict[str, Any],
+        data_yaml: str,
+        result: dict[str, Any],
+    ) -> None:
+        """Run gating validation after a fine-tune training completes."""
+        try:
+            from backend.web.services.gating_validator import run_gating_validation
+
+            model_path = result.get("model_path")
+            base_model_version_id = config.get("base_model_version_id")
+            version_id = str(model_version.version_id)
+
+            self._training_tasks.add_log(
+                task_id, "INFO", "Running deployment gating validation...",
+            )
+
+            gating_result = run_gating_validation(
+                model_version_id=version_id,
+                new_model_path=model_path,
+                base_model_version_id=base_model_version_id,
+                data_yaml=data_yaml,
+                task_id=task_id,
+            )
+
+            self._training_tasks.add_log(
+                task_id, "INFO",
+                f"Gating result: {gating_result.overall_status} "
+                f"(gate1={gating_result.gate1_status}, gate2={gating_result.gate2_status})",
+            )
+
+        except Exception as e:
+            logger.error(f"Gating validation failed for task {task_id}: {e}")
+            self._training_tasks.add_log(
+                task_id, "WARNING",
+                f"Gating validation failed: {e}. Model remains in 'pending' state.",
+            )
 
     def _export_training_data(self, task_id: str) -> dict[str, Any] | None:
         """Export training data for a task."""
@@ -456,6 +587,8 @@ names: {list(FIELD_CLASSES.values())}
         learning_rate: float,
         device: str,
         project_name: str,
+        freeze: int = 0,
+        cos_lr: bool = False,
     ) -> dict[str, Any]:
         """Run YOLO training using shared trainer."""
         from shared.training import YOLOTrainer, TrainingConfig as SharedTrainingConfig
@@ -479,6 +612,8 @@ names: {list(FIELD_CLASSES.values())}
             project="runs/train",
             name=f"{project_name}/task_{task_id[:8]}",
             workers=0,
+            freeze=freeze,
+            cos_lr=cos_lr,
         )
 
         # Run training using shared trainer

packages/backend/backend/web/schemas/admin/__init__.py

@@ -11,6 +11,7 @@ from .annotations import *  # noqa: F401, F403
 from .training import *  # noqa: F401, F403
 from .datasets import *  # noqa: F401, F403
 from .models import *  # noqa: F401, F403
+from .pool import *  # noqa: F401, F403
 from .dashboard import *  # noqa: F401, F403
 
 # Resolve forward references for DocumentDetailResponse

packages/backend/backend/web/schemas/admin/models.py

@@ -40,6 +40,9 @@ class ModelVersionItem(BaseModel):
     name: str = Field(..., description="Model name")
     status: str = Field(..., description="Status (active, inactive, archived)")
     is_active: bool = Field(..., description="Is currently active for inference")
+    model_type: str = Field(default="base", description="Model type (base or finetune)")
+    base_model_version_id: str | None = Field(None, description="Base model version UUID (for fine-tuned models)")
+    gating_status: str = Field(default="pending", description="Deployment gating status")
     metrics_mAP: float | None = Field(None, description="Mean Average Precision")
     document_count: int = Field(..., description="Documents used in training")
     trained_at: datetime | None = Field(None, description="Training completion time")
@@ -66,6 +69,10 @@ class ModelVersionDetailResponse(BaseModel):
     model_path: str = Field(..., description="Path to model file")
     status: str = Field(..., description="Status (active, inactive, archived)")
     is_active: bool = Field(..., description="Is currently active for inference")
+    model_type: str = Field(default="base", description="Model type (base or finetune)")
+    base_model_version_id: str | None = Field(None, description="Base model version UUID")
+    base_training_dataset_id: str | None = Field(None, description="Base training dataset UUID")
+    gating_status: str = Field(default="pending", description="Deployment gating status")
     task_id: str | None = Field(None, description="Training task UUID")
     dataset_id: str | None = Field(None, description="Dataset UUID")
     metrics_mAP: float | None = Field(None, description="Mean Average Precision")

packages/backend/backend/web/schemas/admin/pool.py

@@ -0,0 +1,72 @@
+"""Admin Fine-Tune Pool Schemas."""
+
+from datetime import datetime
+
+from pydantic import BaseModel, Field
+
+
+class PoolAddRequest(BaseModel):
+    """Request to add a document to the fine-tune pool."""
+
+    document_id: str = Field(..., description="Document UUID to add")
+    reason: str = Field(
+        default="user_reported_failure",
+        description="Reason: user_reported_failure, manual_addition",
+    )
+
+
+class PoolEntryItem(BaseModel):
+    """Fine-tune pool entry."""
+
+    entry_id: str = Field(..., description="Entry UUID")
+    document_id: str = Field(..., description="Document UUID")
+    added_by: str | None = Field(None, description="Who added this entry")
+    reason: str | None = Field(None, description="Reason for adding")
+    is_verified: bool = Field(..., description="Whether entry has been verified")
+    verified_at: datetime | None = Field(None, description="Verification timestamp")
+    verified_by: str | None = Field(None, description="Who verified")
+    created_at: datetime = Field(..., description="Creation timestamp")
+
+
+class PoolListResponse(BaseModel):
+    """Paginated pool entry list."""
+
+    total: int = Field(..., ge=0, description="Total entries")
+    limit: int = Field(..., ge=1, description="Page size")
+    offset: int = Field(..., ge=0, description="Current offset")
+    entries: list[PoolEntryItem] = Field(default_factory=list, description="Pool entries")
+
+
+class PoolStatsResponse(BaseModel):
+    """Pool statistics."""
+
+    total_entries: int = Field(..., ge=0, description="Total pool entries")
+    verified_entries: int = Field(..., ge=0, description="Verified entries")
+    unverified_entries: int = Field(..., ge=0, description="Unverified entries")
+    is_ready: bool = Field(..., description="Whether pool has >= 50 verified entries for fine-tuning")
+    min_required: int = Field(default=50, description="Minimum verified entries required")
+
+
+class PoolEntryResponse(BaseModel):
+    """Response for pool entry operation."""
+
+    entry_id: str = Field(..., description="Entry UUID")
+    message: str = Field(..., description="Status message")
+
+
+class GatingResultItem(BaseModel):
+    """Gating validation result."""
+
+    result_id: str = Field(..., description="Result UUID")
+    model_version_id: str = Field(..., description="Model version UUID")
+    gate1_status: str = Field(..., description="Gate 1 status")
+    gate1_original_mAP: float | None = Field(None, description="Original model mAP")
+    gate1_new_mAP: float | None = Field(None, description="New model mAP")
+    gate1_mAP_drop: float | None = Field(None, description="mAP drop percentage")
+    gate2_status: str = Field(..., description="Gate 2 status")
+    gate2_detection_rate: float | None = Field(None, description="Detection rate on new samples")
+    gate2_total_samples: int | None = Field(None, description="Total new samples tested")
+    gate2_detected_samples: int | None = Field(None, description="Samples correctly detected")
+    overall_status: str = Field(..., description="Overall gating status")
+    reviewer_notes: str | None = Field(None, description="Reviewer notes")
+    created_at: datetime = Field(..., description="Creation timestamp")

packages/backend/backend/web/schemas/admin/training.py

@@ -12,7 +12,7 @@ from .enums import TrainingStatus, TrainingType
 class TrainingConfig(BaseModel):
     """Training configuration."""
 
-    model_name: str = Field(default="yolo11n.pt", description="Base model name (used if no base_model_version_id)")
+    model_name: str = Field(default="yolo26s.pt", description="Base model name (used if no base_model_version_id)")
     base_model_version_id: str | None = Field(
         default=None,
         description="Model version UUID to use as base for incremental training. If set, uses this model instead of model_name.",

packages/backend/backend/web/services/data_mixer.py

@@ -0,0 +1,199 @@
+"""
+Data Mixing Service
+
+Mixes fine-tune pool samples with randomly sampled old training data
+following best practices for incremental YOLO fine-tuning.
+"""
+
+import logging
+import random
+import shutil
+from pathlib import Path
+from typing import Any
+from uuid import UUID
+
+logger = logging.getLogger(__name__)
+
+# Mixing ratios: (max_new_samples, old_data_multiplier)
+# Fewer new samples require higher old data ratio to prevent catastrophic forgetting
+MIXING_RATIOS: list[tuple[int, int]] = [
+    (10, 50),   # <= 10 new samples: 50x old
+    (50, 20),   # <= 50 new samples: 20x old
+    (200, 10),  # <= 200 new samples: 10x old
+    (500, 5),   # <= 500 new samples: 5x old
+]
+
+# Default multiplier for 500+ samples
+DEFAULT_MULTIPLIER = 5
+
+# Maximum old samples to include (cap for performance)
+MAX_OLD_SAMPLES = 3000
+
+# Minimum pool size for fine-tuning
+MIN_POOL_SIZE = 50
+
+
+def get_mixing_ratio(new_sample_count: int) -> int:
+    """Determine old data multiplier based on new sample count.
+
+    Args:
+        new_sample_count: Number of new samples in the fine-tune pool.
+
+    Returns:
+        Multiplier for old data sampling.
+    """
+    for threshold, multiplier in MIXING_RATIOS:
+        if new_sample_count <= threshold:
+            return multiplier
+    return DEFAULT_MULTIPLIER
+
+
+def build_mixed_dataset(
+    pool_document_ids: list[UUID],
+    base_dataset_path: Path,
+    output_dir: Path,
+    seed: int = 42,
+) -> dict[str, Any]:
+    """Build a mixed dataset for fine-tuning.
+
+    Combines ALL fine-tune pool samples with randomly sampled old data
+    from the base training dataset.
+
+    Args:
+        pool_document_ids: Document IDs from the fine-tune pool.
+        base_dataset_path: Path to the base training dataset directory.
+        output_dir: Output directory for the mixed dataset.
+        seed: Random seed for reproducible sampling.
+
+    Returns:
+        Dictionary with dataset info (data_yaml path, counts).
+    """
+    new_count = len(pool_document_ids)
+    multiplier = get_mixing_ratio(new_count)
+    old_target = min(new_count * multiplier, MAX_OLD_SAMPLES)
+
+    logger.info(
+        "Building mixed dataset: %d new samples, %dx multiplier, "
+        "targeting %d old samples",
+        new_count, multiplier, old_target,
+    )
+
+    # Create output directory structure
+    output_dir.mkdir(parents=True, exist_ok=True)
+    for split in ("train", "val"):
+        (output_dir / "images" / split).mkdir(parents=True, exist_ok=True)
+        (output_dir / "labels" / split).mkdir(parents=True, exist_ok=True)
+
+    # Collect old training images from base dataset
+    old_train_images = _collect_images(base_dataset_path / "images" / "train")
+    old_val_images = _collect_images(base_dataset_path / "images" / "val")
+
+    # Randomly sample old data
+    rng = random.Random(seed)
+    all_old_images = old_train_images + old_val_images
+    if len(all_old_images) > old_target:
+        sampled_old = rng.sample(all_old_images, old_target)
+    else:
+        sampled_old = all_old_images
+
+    # Split old samples: 80% train, 20% val
+    rng.shuffle(sampled_old)
+    old_train_count = int(len(sampled_old) * 0.8)
+    old_train = sampled_old[:old_train_count]
+    old_val = sampled_old[old_train_count:]
+
+    # Copy old samples to mixed dataset
+    old_copied = 0
+    for split_name, images in [("train", old_train), ("val", old_val)]:
+        for img_path in images:
+            label_path = _image_to_label_path(img_path)
+            dst_img = output_dir / "images" / split_name / img_path.name
+            dst_label = output_dir / "labels" / split_name / label_path.name
+            if img_path.exists():
+                shutil.copy2(img_path, dst_img)
+                old_copied += 1
+            if label_path.exists():
+                shutil.copy2(label_path, dst_label)
+
+    # Copy new pool samples (from base dataset, identified by document_id prefix)
+    # Pool documents go into train split (80%) and val split (20%)
+    pool_id_strs = {str(doc_id) for doc_id in pool_document_ids}
+    new_images = _find_pool_images(base_dataset_path, pool_id_strs)
+
+    rng.shuffle(new_images)
+    new_train_count = int(len(new_images) * 0.8)
+    new_train = new_images[:new_train_count]
+    new_val = new_images[new_train_count:]
+
+    new_copied = 0
+    for split_name, images in [("train", new_train), ("val", new_val)]:
+        for img_path in images:
+            label_path = _image_to_label_path(img_path)
+            dst_img = output_dir / "images" / split_name / img_path.name
+            dst_label = output_dir / "labels" / split_name / label_path.name
+            if img_path.exists() and not dst_img.exists():
+                shutil.copy2(img_path, dst_img)
+                new_copied += 1
+            if label_path.exists() and not dst_label.exists():
+                shutil.copy2(label_path, dst_label)
+
+    # Generate data.yaml
+    from shared.fields import FIELD_CLASSES
+
+    yaml_path = output_dir / "data.yaml"
+    yaml_content = (
+        f"path: {output_dir.absolute()}\n"
+        f"train: images/train\n"
+        f"val: images/val\n"
+        f"\n"
+        f"nc: {len(FIELD_CLASSES)}\n"
+        f"names: {list(FIELD_CLASSES.values())}\n"
+    )
+    yaml_path.write_text(yaml_content)
+
+    total_images = old_copied + new_copied
+    logger.info(
+        "Mixed dataset built: %d old + %d new = %d total images",
+        old_copied, new_copied, total_images,
+    )
+
+    return {
+        "data_yaml": str(yaml_path),
+        "total_images": total_images,
+        "old_images": old_copied,
+        "new_images": new_copied,
+        "mixing_ratio": multiplier,
+    }
+
+
+def _collect_images(images_dir: Path) -> list[Path]:
+    """Collect all image files from a directory."""
+    if not images_dir.exists():
+        return []
+    return sorted(images_dir.glob("*.png")) + sorted(images_dir.glob("*.jpg"))
+
+
+def _image_to_label_path(image_path: Path) -> Path:
+    """Convert image path to corresponding label path."""
+    labels_dir = image_path.parent.parent.parent / "labels" / image_path.parent.name
+    return labels_dir / image_path.with_suffix(".txt").name
+
+
+def _find_pool_images(
+    base_dataset_path: Path,
+    pool_doc_ids: set[str],
+) -> list[Path]:
+    """Find images in base dataset that belong to pool documents."""
+    images: list[Path] = []
+    for split in ("train", "val", "test"):
+        split_dir = base_dataset_path / "images" / split
+        if not split_dir.exists():
+            continue
+        for img_path in split_dir.iterdir():
+            if not img_path.is_file():
+                continue
+            # Image filenames are like: {doc_id}_page{N}.png
+            doc_id = img_path.stem.rsplit("_page", 1)[0]
+            if doc_id in pool_doc_ids:
+                images.append(img_path)
+    return images

packages/backend/backend/web/services/gating_validator.py

@@ -0,0 +1,198 @@
+"""
+Gating Validation Service
+
+Validates fine-tuned models before deployment using quality gates:
+- Gate 1: Regression validation (mAP drop on original test set)
+- Gate 2: New sample validation (detection rate on pool documents)
+"""
+
+import logging
+from pathlib import Path
+from uuid import UUID
+
+from backend.data.admin_models import GatingResult
+from backend.data.database import get_session_context
+from backend.data.repositories.model_version_repository import ModelVersionRepository
+
+logger = logging.getLogger(__name__)
+
+# Gate 1 thresholds (mAP drop)
+GATE1_PASS_THRESHOLD = 0.01  # < 1% drop = PASS
+GATE1_REVIEW_THRESHOLD = 0.03  # 1-3% drop = REVIEW, > 3% = REJECT
+
+# Gate 2 thresholds (detection rate)
+GATE2_PASS_THRESHOLD = 0.80  # > 80% detection rate = PASS
+
+
+def classify_gate1(mAP_drop: float) -> str:
+    """Classify Gate 1 result based on mAP drop.
+
+    Args:
+        mAP_drop: Absolute mAP drop (positive means degradation).
+
+    Returns:
+        "pass", "review", or "reject"
+    """
+    if mAP_drop < GATE1_PASS_THRESHOLD:
+        return "pass"
+    if mAP_drop < GATE1_REVIEW_THRESHOLD:
+        return "review"
+    return "reject"
+
+
+def classify_gate2(detection_rate: float) -> str:
+    """Classify Gate 2 result based on detection rate.
+
+    Args:
+        detection_rate: Fraction of new samples correctly detected (0-1).
+
+    Returns:
+        "pass" or "review"
+    """
+    if detection_rate >= GATE2_PASS_THRESHOLD:
+        return "pass"
+    return "review"
+
+
+def compute_overall_status(gate1_status: str, gate2_status: str) -> str:
+    """Compute overall gating status from individual gates.
+
+    Rules:
+    - Any "reject" -> overall "reject"
+    - Any "review" (and no reject) -> overall "review"
+    - All "pass" -> overall "pass"
+    """
+    if gate1_status == "reject" or gate2_status == "reject":
+        return "reject"
+    if gate1_status == "review" or gate2_status == "review":
+        return "review"
+    return "pass"
+
+
+def run_gating_validation(
+    model_version_id: str | UUID,
+    new_model_path: str,
+    base_model_version_id: str | UUID | None,
+    data_yaml: str,
+    task_id: str | UUID | None = None,
+) -> GatingResult:
+    """Run deployment gating validation for a fine-tuned model.
+
+    Args:
+        model_version_id: The fine-tuned model version to validate.
+        new_model_path: Path to the new model weights.
+        base_model_version_id: The base model version to compare against.
+        data_yaml: Path to the dataset YAML (for validation).
+        task_id: Optional training task ID.
+
+    Returns:
+        GatingResult with gate statuses.
+    """
+    model_versions = ModelVersionRepository()
+
+    # Gate 1: Regression validation
+    gate1_status = "pending"
+    gate1_original_mAP = None
+    gate1_new_mAP = None
+    gate1_mAP_drop = None
+
+    try:
+        if base_model_version_id:
+            base_model = model_versions.get(str(base_model_version_id))
+            if base_model and base_model.metrics_mAP is not None:
+                gate1_original_mAP = base_model.metrics_mAP
+
+                # Run validation with new model
+                from shared.training import YOLOTrainer, TrainingConfig
+
+                val_config = TrainingConfig(
+                    model_path=new_model_path,
+                    data_yaml=data_yaml,
+                )
+                trainer = YOLOTrainer(config=val_config)
+                val_metrics = trainer.validate(split="val")
+                gate1_new_mAP = val_metrics.get("mAP50")
+
+                if gate1_new_mAP is not None:
+                    gate1_mAP_drop = gate1_original_mAP - gate1_new_mAP
+                    gate1_status = classify_gate1(gate1_mAP_drop)
+                    logger.info(
+                        "Gate 1: original_mAP=%.4f, new_mAP=%.4f, drop=%.4f -> %s",
+                        gate1_original_mAP, gate1_new_mAP, gate1_mAP_drop, gate1_status,
+                    )
+                else:
+                    gate1_status = "review"
+                    logger.warning("Gate 1: Could not compute new mAP, marking as review")
+            else:
+                gate1_status = "pass"
+                logger.info("Gate 1: No base model metrics available, skipping (pass)")
+        else:
+            gate1_status = "pass"
+            logger.info("Gate 1: No base model specified, skipping (pass)")
+    except Exception as e:
+        gate1_status = "review"
+        logger.error("Gate 1 failed: %s", e)
+
+    # Gate 2: New sample validation
+    # For now, we use the training metrics as a proxy
+    # Full implementation would run inference on pool documents
+    gate2_status = "pass"
+    gate2_detection_rate = None
+    gate2_total_samples = None
+    gate2_detected_samples = None
+
+    try:
+        new_model = model_versions.get(str(model_version_id))
+        if new_model and new_model.metrics_mAP is not None:
+            # Use mAP as proxy for detection rate on new samples
+            gate2_detection_rate = new_model.metrics_mAP
+            if gate2_detection_rate is not None:
+                gate2_status = classify_gate2(gate2_detection_rate)
+                logger.info(
+                    "Gate 2: detection_rate=%.4f -> %s",
+                    gate2_detection_rate, gate2_status,
+                )
+    except Exception as e:
+        gate2_status = "review"
+        logger.error("Gate 2 failed: %s", e)
+
+    # Compute overall status
+    overall_status = compute_overall_status(gate1_status, gate2_status)
+    logger.info("Gating overall: %s (gate1=%s, gate2=%s)", overall_status, gate1_status, gate2_status)
+
+    # Save result
+    with get_session_context() as session:
+        result = GatingResult(
+            model_version_id=UUID(str(model_version_id)),
+            task_id=UUID(str(task_id)) if task_id else None,
+            gate1_status=gate1_status,
+            gate1_original_mAP=gate1_original_mAP,
+            gate1_new_mAP=gate1_new_mAP,
+            gate1_mAP_drop=gate1_mAP_drop,
+            gate2_status=gate2_status,
+            gate2_detection_rate=gate2_detection_rate,
+            gate2_total_samples=gate2_total_samples,
+            gate2_detected_samples=gate2_detected_samples,
+            overall_status=overall_status,
+        )
+        session.add(result)
+        session.commit()
+        session.refresh(result)
+        session.expunge(result)
+
+    # Update model version gating status
+    _update_model_gating_status(str(model_version_id), overall_status)
+
+    return result
+
+
+def _update_model_gating_status(version_id: str, status: str) -> None:
+    """Update the gating_status field on a ModelVersion."""
+    from backend.data.admin_models import ModelVersion
+
+    with get_session_context() as session:
+        model = session.get(ModelVersion, UUID(version_id))
+        if model:
+            model.gating_status = status
+            session.add(model)
+            session.commit()

packages/backend/requirements.txt

@@ -3,6 +3,6 @@ fastapi>=0.104.0
 uvicorn[standard]>=0.24.0
 python-multipart>=0.0.6
 sqlmodel>=0.0.22
-ultralytics>=8.1.0
+ultralytics>=8.4.0
 httpx>=0.25.0
 openai>=1.0.0

packages/shared/shared/bbox/__init__.py

@@ -1,37 +1,20 @@
 """
-BBox Scale Strategy Module.
+BBox Expansion Module.
 
-Provides field-specific bounding box expansion strategies for YOLO training data.
+Provides uniform bounding box expansion for YOLO training data.
-Expands bboxes using center-point scaling with directional compensation to capture
-field labels that typically appear above or to the left of field values.
-
-Two modes are supported:
-- Auto-label: Field-specific scale strategies with directional compensation
-- Manual-label: Minimal padding only to prevent edge clipping
 
 Usage:
-    from shared.bbox import expand_bbox, ScaleStrategy, FIELD_SCALE_STRATEGIES
+    from shared.bbox import expand_bbox, UNIFORM_PAD
 
 Available exports:
-    - ScaleStrategy: Dataclass for scale strategy configuration
+    - UNIFORM_PAD: Default uniform pixel padding (15px at 150 DPI)
-    - DEFAULT_STRATEGY: Default strategy for unknown fields (auto-label)
+    - expand_bbox: Function to expand bbox with uniform padding
-    - MANUAL_LABEL_STRATEGY: Minimal padding strategy for manual labels
-    - FIELD_SCALE_STRATEGIES: dict[str, ScaleStrategy] - field-specific strategies
-    - expand_bbox: Function to expand bbox using field-specific strategy
 """
 
-from .scale_strategy import (
+from .scale_strategy import UNIFORM_PAD
-    ScaleStrategy,
-    DEFAULT_STRATEGY,
-    MANUAL_LABEL_STRATEGY,
-    FIELD_SCALE_STRATEGIES,
-)
 from .expander import expand_bbox
 
 __all__ = [
-    "ScaleStrategy",
+    "UNIFORM_PAD",
-    "DEFAULT_STRATEGY",
-    "MANUAL_LABEL_STRATEGY",
-    "FIELD_SCALE_STRATEGIES",
     "expand_bbox",
 ]

packages/shared/shared/bbox/expander.py

@@ -1,101 +1,35 @@
 """
 BBox Expander Module.
 
-Provides functions to expand bounding boxes using field-specific strategies.
+Expands bounding boxes by a uniform pixel padding on all sides,
-Expansion is center-point based with directional compensation.
+clamped to image boundaries. No field-specific or directional logic.
-
-Two modes:
-- Auto-label (default): Field-specific scale strategies
-- Manual-label: Minimal padding only to prevent edge clipping
 """
 
-from .scale_strategy import (
+from .scale_strategy import UNIFORM_PAD
-    ScaleStrategy,
-    DEFAULT_STRATEGY,
-    MANUAL_LABEL_STRATEGY,
-    FIELD_SCALE_STRATEGIES,
-)
 
 
 def expand_bbox(
     bbox: tuple[float, float, float, float],
     image_width: float,
     image_height: float,
-    field_type: str,
+    pad: int = UNIFORM_PAD,
-    strategies: dict[str, ScaleStrategy] | None = None,
-    manual_mode: bool = False,
 ) -> tuple[int, int, int, int]:
-    """
+    """Expand bbox by uniform pixel padding, clamped to image bounds.
-    Expand bbox using field-specific scale strategy.
-
-    The expansion follows these steps:
-    1. Scale bbox around center point (scale_x, scale_y)
-    2. Apply directional compensation (extra_*_ratio)
-    3. Clamp expansion to max_pad limits
-    4. Clamp to image boundaries
 
     Args:
-        bbox: (x0, y0, x1, y1) in pixels
+        bbox: (x0, y0, x1, y1) in pixels.
-        image_width: Image width for boundary clamping
+        image_width: Image width for boundary clamping.
-        image_height: Image height for boundary clamping
+        image_height: Image height for boundary clamping.
-        field_type: Field class_name (e.g., "ocr_number")
+        pad: Uniform pixel padding on all sides (default: UNIFORM_PAD).
-        strategies: Custom strategies dict, defaults to FIELD_SCALE_STRATEGIES
-        manual_mode: If True, use MANUAL_LABEL_STRATEGY (minimal padding only)
 
     Returns:
-        Expanded bbox (x0, y0, x1, y1) as integers, clamped to image bounds
+        Expanded bbox (x0, y0, x1, y1) as integers, clamped to image bounds.
     """
     x0, y0, x1, y1 = bbox
-    w = x1 - x0
-    h = y1 - y0
 
-    # Get strategy based on mode
+    nx0 = max(0, int(x0 - pad))
-    if manual_mode:
+    ny0 = max(0, int(y0 - pad))
-        strategy = MANUAL_LABEL_STRATEGY
+    nx1 = min(int(image_width), int(x1 + pad))
-    elif strategies is None:
+    ny1 = min(int(image_height), int(y1 + pad))
-        strategy = FIELD_SCALE_STRATEGIES.get(field_type, DEFAULT_STRATEGY)
-    else:
-        strategy = strategies.get(field_type, DEFAULT_STRATEGY)
-
-    # Step 1: Scale around center point
-    cx = (x0 + x1) / 2
-    cy = (y0 + y1) / 2
-
-    new_w = w * strategy.scale_x
-    new_h = h * strategy.scale_y
-
-    nx0 = cx - new_w / 2
-    nx1 = cx + new_w / 2
-    ny0 = cy - new_h / 2
-    ny1 = cy + new_h / 2
-
-    # Step 2: Apply directional compensation
-    nx0 -= w * strategy.extra_left_ratio
-    nx1 += w * strategy.extra_right_ratio
-    ny0 -= h * strategy.extra_top_ratio
-    ny1 += h * strategy.extra_bottom_ratio
-
-    # Step 3: Clamp expansion to max_pad limits (preserve asymmetry)
-    left_pad = min(x0 - nx0, strategy.max_pad_x)
-    right_pad = min(nx1 - x1, strategy.max_pad_x)
-    top_pad = min(y0 - ny0, strategy.max_pad_y)
-    bottom_pad = min(ny1 - y1, strategy.max_pad_y)
-
-    # Ensure pads are non-negative (in case of contraction)
-    left_pad = max(0, left_pad)
-    right_pad = max(0, right_pad)
-    top_pad = max(0, top_pad)
-    bottom_pad = max(0, bottom_pad)
-
-    nx0 = x0 - left_pad
-    nx1 = x1 + right_pad
-    ny0 = y0 - top_pad
-    ny1 = y1 + bottom_pad
-
-    # Step 4: Clamp to image boundaries
-    nx0 = max(0, int(nx0))
-    ny0 = max(0, int(ny0))
-    nx1 = min(int(image_width), int(nx1))
-    ny1 = min(int(image_height), int(ny1))
 
     return (nx0, ny0, nx1, ny1)

packages/shared/shared/bbox/scale_strategy.py

@@ -1,140 +1,12 @@
 """
 Scale Strategy Configuration.
 
-Defines field-specific bbox expansion strategies for YOLO training data.
+Defines uniform bbox expansion padding for YOLO training data.
-Each strategy controls how bboxes are expanded around field values to
+All fields use the same fixed-pixel padding -- no layout assumptions.
-capture contextual information like labels.
 """
 
-from dataclasses import dataclass
 from typing import Final
 
-
+# 15px at 150 DPI = ~2.5mm real-world padding around text.
-@dataclass(frozen=True)
+# Enough for OCR safety margin without capturing neighboring label text.
-class ScaleStrategy:
+UNIFORM_PAD: Final[int] = 15
-    """Immutable scale strategy for bbox expansion.
-
-    Attributes:
-        scale_x: Horizontal scale factor (1.0 = no scaling)
-        scale_y: Vertical scale factor (1.0 = no scaling)
-        extra_top_ratio: Additional expansion ratio towards top (for labels above)
-        extra_bottom_ratio: Additional expansion ratio towards bottom
-        extra_left_ratio: Additional expansion ratio towards left (for prefixes)
-        extra_right_ratio: Additional expansion ratio towards right (for suffixes)
-        max_pad_x: Maximum horizontal padding in pixels
-        max_pad_y: Maximum vertical padding in pixels
-    """
-
-    scale_x: float = 1.15
-    scale_y: float = 1.15
-    extra_top_ratio: float = 0.0
-    extra_bottom_ratio: float = 0.0
-    extra_left_ratio: float = 0.0
-    extra_right_ratio: float = 0.0
-    max_pad_x: int = 50
-    max_pad_y: int = 50
-
-
-# Default strategy for unknown fields (auto-label mode)
-DEFAULT_STRATEGY: Final[ScaleStrategy] = ScaleStrategy()
-
-# Manual label strategy - minimal padding to prevent edge clipping
-# No scaling, no directional compensation, just small uniform padding
-MANUAL_LABEL_STRATEGY: Final[ScaleStrategy] = ScaleStrategy(
-    scale_x=1.0,
-    scale_y=1.0,
-    extra_top_ratio=0.0,
-    extra_bottom_ratio=0.0,
-    extra_left_ratio=0.0,
-    extra_right_ratio=0.0,
-    max_pad_x=10,  # Small padding to prevent edge loss
-    max_pad_y=10,
-)
-
-
-# Field-specific strategies based on Swedish invoice field characteristics
-# Field labels typically appear above or to the left of values
-FIELD_SCALE_STRATEGIES: Final[dict[str, ScaleStrategy]] = {
-    # OCR number - label "OCR" or "Referens" typically above
-    "ocr_number": ScaleStrategy(
-        scale_x=1.15,
-        scale_y=1.80,
-        extra_top_ratio=0.60,
-        max_pad_x=50,
-        max_pad_y=140,
-    ),
-    # Bankgiro - prefix "Bankgiro:" or "BG:" typically to the left
-    "bankgiro": ScaleStrategy(
-        scale_x=1.45,
-        scale_y=1.35,
-        extra_left_ratio=0.80,
-        max_pad_x=160,
-        max_pad_y=90,
-    ),
-    # Plusgiro - prefix "Plusgiro:" or "PG:" typically to the left
-    "plusgiro": ScaleStrategy(
-        scale_x=1.45,
-        scale_y=1.35,
-        extra_left_ratio=0.80,
-        max_pad_x=160,
-        max_pad_y=90,
-    ),
-    # Invoice date - label "Fakturadatum" typically above
-    "invoice_date": ScaleStrategy(
-        scale_x=1.25,
-        scale_y=1.55,
-        extra_top_ratio=0.40,
-        max_pad_x=80,
-        max_pad_y=110,
-    ),
-    # Due date - label "Forfalldatum" typically above, sometimes left
-    "invoice_due_date": ScaleStrategy(
-        scale_x=1.30,
-        scale_y=1.65,
-        extra_top_ratio=0.45,
-        extra_left_ratio=0.35,
-        max_pad_x=100,
-        max_pad_y=120,
-    ),
-    # Amount - currency symbol "SEK" or "kr" may be to the right
-    "amount": ScaleStrategy(
-        scale_x=1.20,
-        scale_y=1.35,
-        extra_right_ratio=0.30,
-        max_pad_x=70,
-        max_pad_y=80,
-    ),
-    # Invoice number - label "Fakturanummer" typically above
-    "invoice_number": ScaleStrategy(
-        scale_x=1.20,
-        scale_y=1.50,
-        extra_top_ratio=0.40,
-        max_pad_x=80,
-        max_pad_y=100,
-    ),
-    # Supplier org number - label "Org.nr" typically above or left
-    "supplier_org_number": ScaleStrategy(
-        scale_x=1.25,
-        scale_y=1.40,
-        extra_top_ratio=0.30,
-        extra_left_ratio=0.20,
-        max_pad_x=90,
-        max_pad_y=90,
-    ),
-    # Customer number - label "Kundnummer" typically above or left
-    "customer_number": ScaleStrategy(
-        scale_x=1.25,
-        scale_y=1.45,
-        extra_top_ratio=0.35,
-        extra_left_ratio=0.25,
-        max_pad_x=90,
-        max_pad_y=100,
-    ),
-    # Payment line - machine-readable code, minimal expansion needed
-    "payment_line": ScaleStrategy(
-        scale_x=1.10,
-        scale_y=1.20,
-        max_pad_x=40,
-        max_pad_y=40,
-    ),
-}

packages/shared/shared/training/yolo_trainer.py

@@ -17,7 +17,7 @@ class TrainingConfig:
     """Training configuration."""
 
     # Model settings
-    model_path: str = "yolo11n.pt"  # Base model or path to trained model
+    model_path: str = "yolo26s.pt"  # Base model or path to trained model
     data_yaml: str = ""  # Path to data.yaml
 
     # Training hyperparameters
@@ -39,6 +39,10 @@ class TrainingConfig:
     resume: bool = False
     resume_from: str | None = None  # Path to checkpoint
 
+    # Fine-tuning specific
+    freeze: int = 0  # Number of backbone layers to freeze (0 = none)
+    cos_lr: bool = False  # Use cosine learning rate scheduler
+
     # Document-specific augmentation (optimized for invoices)
     augmentation: dict[str, Any] = field(default_factory=lambda: {
         "degrees": 5.0,
@@ -106,7 +110,7 @@ class YOLOTrainer:
         # Check model path
         model_path = Path(self.config.model_path)
         if not model_path.suffix == ".pt":
-            # Could be a model name like "yolo11n.pt" which is downloaded
+            # Could be a model name like "yolo26s.pt" which is downloaded
             if not model_path.name.startswith("yolo"):
                 return False, f"Invalid model: {self.config.model_path}"
         elif not model_path.exists():
@@ -147,6 +151,10 @@ class YOLOTrainer:
         self._log("INFO", f"  Epochs: {self.config.epochs}")
         self._log("INFO", f"  Batch size: {self.config.batch_size}")
         self._log("INFO", f"  Image size: {self.config.image_size}")
+        if self.config.freeze > 0:
+            self._log("INFO", f"  Freeze layers: {self.config.freeze}")
+        if self.config.cos_lr:
+            self._log("INFO", f"  Cosine LR: enabled")
 
         try:
             # Load model
@@ -178,6 +186,12 @@ class YOLOTrainer:
                 "resume": self.config.resume and self.config.resume_from is not None,
             }
 
+            # Add fine-tuning settings
+            if self.config.freeze > 0:
+                train_args["freeze"] = self.config.freeze
+            if self.config.cos_lr:
+                train_args["cos_lr"] = True
+
             # Add augmentation settings
             train_args.update(self.config.augmentation)
 

packages/training/requirements.txt

@@ -1,4 +1,4 @@
 -e ../shared
-ultralytics>=8.1.0
+ultralytics>=8.4.0
 tqdm>=4.65.0
 torch>=2.0.0

packages/training/run_training.py

@@ -34,7 +34,7 @@ def execute_training_task(db: TrainingTaskDB, task: dict) -> None:
         result = run_training(
             epochs=config.get("epochs", 100),
             batch=config.get("batch_size", 16),
-            model=config.get("base_model", "yolo11n.pt"),
+            model=config.get("base_model", "yolo26s.pt"),
             imgsz=config.get("imgsz", 1280),
             name=config.get("name", f"training_{task_id[:8]}"),
         )

packages/training/training/cli/train.py

@@ -28,8 +28,8 @@ def main():
     )
     parser.add_argument(
         '--model', '-m',
-        default='yolov8s.pt',
+        default='yolo26s.pt',
-        help='Base model (default: yolov8s.pt)'
+        help='Base model (default: yolo26s.pt)'
     )
     parser.add_argument(
         '--epochs', '-e',

packages/training/training/yolo/annotation_generator.py

@@ -100,12 +100,11 @@ class AnnotationGenerator:
                 x0, y0, x1, y1 = best_match.bbox
                 x0, y0, x1, y1 = x0 * scale, y0 * scale, x1 * scale, y1 * scale
 
-                # Apply field-specific bbox expansion strategy
+                # Apply uniform bbox expansion
                 x0, y0, x1, y1 = expand_bbox(
                     bbox=(x0, y0, x1, y1),
                     image_width=image_width,
                     image_height=image_height,
-                    field_type=class_name,
                 )
 
                 # Ensure minimum height
@@ -173,12 +172,11 @@ class AnnotationGenerator:
         x0, y0, x1, y1 = payment_line_bbox
         x0, y0, x1, y1 = x0 * scale, y0 * scale, x1 * scale, y1 * scale
 
-        # Apply field-specific bbox expansion strategy for payment_line
+        # Apply uniform bbox expansion
         x0, y0, x1, y1 = expand_bbox(
             bbox=(x0, y0, x1, y1),
             image_width=image_width,
             image_height=image_height,
-            field_type="payment_line",
         )
 
         # Convert to YOLO format (normalized center + size)

packages/training/training/yolo/db_dataset.py

@@ -585,15 +585,11 @@ class DBYOLODataset:
             x1_px = x1_pdf * scale
             y1_px = y1_pdf * scale
 
-            # Get class name for field-specific expansion
+            # Apply uniform bbox expansion
-            class_name = CLASS_NAMES[ann.class_id]
-
-            # Apply field-specific bbox expansion
             x0, y0, x1, y1 = expand_bbox(
                 bbox=(x0_px, y0_px, x1_px, y1_px),
                 image_width=img_width,
                 image_height=img_height,
-                field_type=class_name,
             )
 
             # Ensure minimum height

pyproject.toml

@@ -27,7 +27,7 @@ dependencies = [
     "PyMuPDF>=1.23.0",
     "paddlepaddle>=3.0.0,<3.3.0",
     "paddleocr>=3.0.0",
-    "ultralytics>=8.1.0",
+    "ultralytics>=8.4.0",
     "Pillow>=10.0.0",
     "numpy>=1.24.0",
     "opencv-python>=4.8.0",

requirements.txt

@@ -8,7 +8,7 @@ paddlepaddle>=3.0.0,<3.3.0   # PaddlePaddle framework (3.3.0 has OneDNN bug)
 paddleocr>=3.0.0             # PaddleOCR (PP-OCRv5)
 
 # YOLO
-ultralytics>=8.1.0           # YOLOv8/v11
+ultralytics>=8.4.0           # YOLO26
 
 # Image Processing
 Pillow>=10.0.0               # Image handling

scripts/analyze_v3.py

@@ -0,0 +1,103 @@
+#!/usr/bin/env python3
+"""Analyze batch inference v3 results (Round 2 fixes)."""
+
+import json
+from collections import Counter
+
+with open("scripts/inference_results_v3.json") as f:
+    results = json.load(f)
+
+total = len(results)
+success = sum(1 for r in results if r["status"] == 200)
+print(f"Total PDFs: {total}, Successful: {success}")
+print()
+
+# Summary table
+header = f"{'PDF':<40} {'Det':<4} {'Fld':<4} {'Time':<7} Fields"
+print(header)
+print("-" * 140)
+for r in results:
+    fn = r["filename"][:39]
+    data = r.get("data", {})
+    result_data = data.get("result", {})
+    fields = result_data.get("fields", {})
+    dets = len(result_data.get("detections", []))
+    nfields = len(fields)
+    t = r["time_seconds"]
+    parts = []
+    for k, v in fields.items():
+        sv = str(v)
+        if len(sv) > 30:
+            sv = sv[:27] + "..."
+        parts.append(f"{k}={sv}")
+    field_str = ", ".join(parts)
+    print(f"{fn:<40} {dets:<4} {nfields:<4} {t:<7} {field_str}")
+
+print()
+
+# Field coverage
+field_counts: Counter = Counter()
+conf_sums: Counter = Counter()
+ok_count = 0
+for r in results:
+    if r["status"] != 200:
+        continue
+    ok_count += 1
+    result_data = r["data"]["result"]
+    for k in result_data.get("fields", {}):
+        field_counts[k] += 1
+    for k, v in (result_data.get("confidence") or {}).items():
+        conf_sums[k] += v
+
+print(f"Field Coverage ({ok_count} successful PDFs):")
+hdr = f"{'Field':<35} {'Present':<10} {'Rate':<10} {'Avg Conf':<10}"
+print(hdr)
+print("-" * 65)
+for field in [
+    "InvoiceNumber", "InvoiceDate", "InvoiceDueDate", "OCR",
+    "Amount", "Bankgiro", "Plusgiro",
+    "supplier_organisation_number", "customer_number", "payment_line",
+]:
+    cnt = field_counts.get(field, 0)
+    rate = cnt / ok_count * 100 if ok_count else 0
+    avg_conf = conf_sums.get(field, 0) / cnt if cnt else 0
+    flag = ""
+    if rate < 30:
+        flag = " <<<"
+    elif rate < 60:
+        flag = " !!"
+    print(f"{field:<35} {cnt:<10} {rate:<10.1f} {avg_conf:<10.3f}{flag}")
+
+# Fallback count
+fb_count = 0
+for r in results:
+    if r["status"] == 200:
+        result_data = r["data"]["result"]
+        if result_data.get("fallback_used"):
+            fb_count += 1
+print(f"\nFallback used: {fb_count}/{ok_count}")
+
+# Low-confidence fields
+print("\nLow-confidence extractions (< 0.7):")
+for r in results:
+    if r["status"] != 200:
+        continue
+    result_data = r["data"]["result"]
+    for k, v in (result_data.get("confidence") or {}).items():
+        if v < 0.7:
+            fv = result_data.get("fields", {}).get(k, "?")
+            print(f"  [{v:.3f}] {k:<25} = {str(fv)[:40]:<40} ({r['filename'][:36]})")
+
+# PDFs with very few fields (possible issues)
+print("\nPDFs with <= 2 fields extracted:")
+for r in results:
+    if r["status"] != 200:
+        continue
+    result_data = r["data"]["result"]
+    fields = result_data.get("fields", {})
+    if len(fields) <= 2:
+        print(f"  {r['filename']}: {len(fields)} fields - {list(fields.keys())}")
+
+# Avg time
+avg_time = sum(r["time_seconds"] for r in results) / len(results)
+print(f"\nAverage processing time: {avg_time:.2f}s")