[M-AI-08-02] 实现学习分析数据聚合、Snapshot 与输入版本 #329
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opened 2026-06-22 21:27:16 +08:00 by wangdl
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adr
Area: adr
architecture
Area: architecture
area:activity
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area:admin
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area:admin-api
area:ai
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area:ai-runtime
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area:api
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area:database
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priority:p0
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高优先级,里程碑必需
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中优先级,后续版本
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Snapshot 构建
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M-AI-08 学习综合分析、学习建议与 AI 迁移闭环
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Reference: wangdl/api-server#329
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类型 / 标签
风险等级
P1 — Snapshot 泄露敏感信息为 P0;数据窗口漂移导致分析不可复现
依赖
目标
实现可信、最小、可复现的学习数据聚合和 Snapshot Builder。
组件
LearningAnalysisDataAggregator + LearningAnalysisSnapshotBuilder。从服务端数据源聚合冻结窗口内的指标:学习指标(totalStudyDuration/activeDays/sessionCount)、复习指标(reviewDueCount/reviewAccuracy/retentionTrend)、Quiz 指标(accuracy/accuracyByKnowledgeItem)、主动回忆与 Feynman 指标、知识进度指标。字段以审计结果为准。
数据质量
Snapshot 必须包含 availableSources/missingSources/sampleSize/insufficientDataReasons。不得把"没有数据"当成零表现。
窗口稳定性
同一任务固定 windowStart/windowEnd/timezone/sourceCutoffAt/aggregationVersion。Worker 执行时不得重新选择统计窗口。
安全
禁止进入 Snapshot:JWT/Cookie/API Key/数据库连接串/精确设备标识/其他用户内容/完整对话历史。
测试
全部数据源存在、部分缺失、无有效数据、跨用户、时区边界、窗口边界、数据排序不稳定、超限裁剪、Hash 稳定、敏感字段扫描。
验收标准
建议执行顺序
第 2 个执行
开发完成评论
完成内容
修改文件
测试覆盖
测试情况
是否建议进入 Review