vault backup: 2026-04-06 16:23:54

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Yaojia Wang
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---
created: 2026-04-06
type: log
project: "[[Smart Support]]"
source: docs/phases/phase-5-dev-log.md
tags:
- dev-log
- phase-5
- error-handling
- frontend
- docker
- demo
- rate-limiting
---
# Phase 5: Polish + Demo Prep -- Development Log
> Status: COMPLETED
> Phase branch: `phase-5/polish-demo`
> Date started: 2026-03-30
> Date completed: 2026-03-30
## What Was Built
### 后端
- **对话追踪器** (`conversation_tracker.py`): Protocol + PostgresConversationTracker + NoOpConversationTracker。ensure, record_turn, resolve 生命周期管理。
- **错误处理** (`tools/error_handler.py`): ErrorCategory 枚举RETRYABLE/PERMANENT/EXTERNAL/UNKNOWN、classify_error()、with_retry() 指数退避。
- **WebSocket 加固**: 速率限制 10 msg/10s、空白消息检查、JSON 数组拒绝、10000 字符限制、fire-and-forget 追踪。
- **健康检查**: GET /api/health。
- **演示数据**: demo_data.py + sample_openapi.yaml。
### 前端(完整实现)
- API 客户端、导航栏、App Shell
- 5 个页面Chat、ReplayList、Replay、Dashboard、Review
- ErrorBanner 断线提示 + 重连
- MetricCard + ReplayTimeline 组件
- WebSocket reconnect() + onDisconnect/onReconnect 回调
### 基础设施
- Frontend Dockerfile多阶段构建
- nginx.confSPA + WS/API 代理)
- Docker Compose 全栈PostgreSQL + Backend + Frontend
### 文档
- 演示脚本、Agent 配置指南、OpenAPI 导入指南、部署文档、README
## Test Coverage
- New: 42 tests
- Total: 449 (后续工程审查增至 516)
- Coverage: 92.88%
## Related
- [[Smart Support]]
- [[Smart Support/Phase 5 - 打磨 + 演示]]