42 lines
1.4 KiB
Markdown
42 lines
1.4 KiB
Markdown
---
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created: 2026-04-06
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type: log
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project: "[[Smart Support]]"
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source: docs/phases/phase-4-dev-log.md
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tags:
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- dev-log
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- phase-4
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- analytics
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- replay
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- postgresql
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---
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# Phase 4: Conversation Replay + Analytics -- Development Log
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> Status: COMPLETED
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> Phase branch: `phase-4/analytics-replay`
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> Date started: 2026-03-31
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> Date completed: 2026-03-31
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## What Was Built
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- **回放模型**: StepType 枚举、ReplayStep、ReplayPage 冻结数据类。
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- **检查点转换器** (`replay/transformer.py`): PostgresSaver JSONB -> 结构化 ReplayStep 时间线。
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- **回放 API** (`replay/api.py`): GET /api/conversations（分页列表）、GET /api/replay/{thread_id}（分页时间线，默认 20 步）。
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- **分析模型**: AgentUsage、InterruptStats、AnalyticsResult。
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- **事件记录器** (`analytics/event_recorder.py`): AnalyticsRecorder Protocol + PostgresAnalyticsRecorder + NoOpAnalyticsRecorder。
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- **分析查询** (`analytics/queries.py`): resolution_rate, agent_usage, escalation_rate, cost_per_conversation, interrupt_stats。
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- **分析 API** (`analytics/api.py`): GET /api/analytics?range=Xd。
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- **DB 迁移**: analytics_events 表 + conversations 列扩展（resolution_type, agents_used, turn_count, ended_at）。
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## Test Coverage
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- New: 74 tests
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- Total: 399 tests
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- Coverage: 92.87%
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## Related
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- [[Smart Support]]
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- [[Smart Support/Phase 4 - 分析 + 回放]]
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