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Author SHA1 Message Date
iomgaa d3be9b1322 refactor(tree): subtitle 迁入 L3Card/L2Card + 建树管线修正 
- L3Card/L2Card 新增 subtitle: str 字段（L1Card 不加）
- L3Node 移除 subtitle 字段（数据迁入 Card）
- assign_subtitles_voronoi 改写 Card.subtitle + L2 聚合
- _collect_card_strings 增加 skip_fields 排除 subtitle
- _node_full_text/_node_anchored_text 保持 字幕:/[sN] 语义
- get_subtitle 读 Card.subtitle（L2/L3）
- verify.py/synthesizer.py: l3.subtitle → l3.card.subtitle
- 迁移脚本 tools/migrate_subtitle_to_card.py（幂等，300 棵树已迁移）
- 9→6 个测试文件适配（3 个无需改动）

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-07-09 11:57:41 -04:00
iomgaa 45403b23b4 feat(repair): regenerator + supplement 防御修复 + 迁移脚本 
- 新增 app/tree/repair/regenerator.py（VLM 重生成 + 级联修复）
- supplement.py: deduplicate_field str() 防御 + inject_value strip
- patch.py: ruff format 格式化
- repair_trees.sh: conda source 激活修复
- 新增 migrate_from_trm4.sh 迁移工具
- enhance/__init__.py → repair/__init__.py 重命名

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-07-09 07:53:59 -04:00
iomgaa f57ee45dc0 fix: Codex 全量审查修正 
Critical:
- C1: assemble_mode 'plain' → 'ids'（合法枚举值）
- C2: question_id 加入 task_type slug 避免跨题型冲突

Important/Minor:
- generate_one 移除未用的 embed_fn/similarity_threshold 参数
- config.py 注释 11→12 同步
- 测试 question_id 断言更新

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-07-09 07:40:27 -04:00
iomgaa 93c9be8bfa feat(tools): generate_questions.py calibrate 子命令 
- Fisher exact test + effect size 组合判定（PASS/WARN/FAIL）
- 按 video_id 分组推理，避免跨视频树错用
- baseline 支持从 DB 读取或自动跑推理
- 对比表输出 + 退出码控制

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-07-09 05:47:52 -04:00
iomgaa 11f3c90200 feat(tools): generate_questions.py generate 子命令 
- VLM 出题 + embedding 去重 + 断点续跑 + 并发控制
- 单线程汇总点保证去重原子性
- 18 个单元测试覆盖 progress/exemplar/pool rebuild/JSON append

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-07-09 05:42:50 -04:00
iomgaa 6e46d184b8 feat(harness): add factory.py — InferenceDeps dataclass + build_inference_deps 
组装一次推理所需的全套依赖的工厂函数：
- TreeIndex 加载（FileNotFoundError if missing）
- TreeEnvironment 构建
- SkillRegistry 按需发现
- SearchToolDispatcher 装配
- PromptManager + prompt_builder 闭包

测试覆盖：正常路径、缺失树文件、skills 注入、frozen 不可变性。

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-07-09 05:36:07 -04:00
iomgaa 5aa7cc48c5 feat(question_gen): is_duplicate + generate_one — 去重判定与单题生成编排 
- is_duplicate: 余弦相似度去重，空池短路
- generate_one: 异步重试循环，不含去重（由调用方汇总点原子执行）

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-07-09 05:32:39 -04:00
iomgaa 90f17e330e feat(question_gen): build_generation_prompt + parse_vlm_response 
- prompt 组装：system(角色+题型+约束+few-shot) + user(card+字幕+干扰项)
- VLM 响应解析：JSON 直接 + markdown code block 回退，四选一 schema 校验

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-07-09 05:28:25 -04:00
iomgaa 40b04f886e fix(question_gen): sample_anchor Codex 审查修正 
- C1/C2: Temporal Reasoning ≥3 L2 + Object Reasoning ≥2 L2 下限检查
- I1: L2 题型子帧不足时 ValueError
- I2: L3 过滤无 frame_path 的节点
- I3/I4: distractor_texts 扩展到整棵树范围
- I5-I7: 测试补强 Information Synopsis/Temporal Reasoning/Object Reasoning
- M1: Spatial Reasoning 测试断言 spatial_layout

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-07-09 05:24:30 -04:00
iomgaa a597a9f901 feat(question_gen): sample_anchor — 按题型层级采样锚节点 
含 6 种层级分支：L3 单帧、L2 多帧、Temporal Perception 特例、
L1 全量/采样 L2、L1-L2 混合。时间排序 + used_node_ids 排除。

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-07-09 05:18:25 -04:00
iomgaa 9eb9b86954 feat(question_gen): AnchorContext + 12 题型-层级映射常量 
- AnchorContext frozen dataclass: 锚节点生成上下文（node_id, card_text, frame_paths, subtitle, distractor_texts）
- TaskTypeSpec frozen dataclass: 题型生成规格（level, needs_frames, frame_count, context_fields）
- TASK_TYPE_LEVEL_MAP: 12 种 Video-MME 题型 → 树层级 + 生成规格映射
- 11 项单元测试覆盖：映射完整性、值类型、层级合法性、frozen 不变性

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-07-09 05:10:58 -04:00
iomgaa eb15ab315e fix(config): _VIDEO_MME_TASK_TYPE_COUNT 11→12，Video-MME 实际有 12 种题型 
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-07-09 05:08:05 -04:00
iomgaa 8c383354c5 fix(detector): 移除 ongoing_actions/visible_entities 空字段检测 + 新增 repair sh 
抽检确认这两个字段为空是合法内容状态（静物/黑帧/模糊帧），
VLM 重修也修不好，保留会导致断点续跑死循环。
L3 空字段检测缩减为 frame_summary + spatial_layout。
 2026-07-09 00:54:27 -04:00
iomgaa afe80a8b32 feat(repair): 断点续跑 progress 文件管理 
load_progress / save_progress(asyncio.Lock + os.replace 原子写入)
/ should_skip_video。支持并发安全的读改写和 --reaggregate-all 兜底。

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-07-09 00:23:04 -04:00
iomgaa 8182cb86b1 feat(detector): 扩展空字段检测到 L2 event_description / L1 scene_summary 
断点续跑判据需要 L2/L1 层的 empty_field 检测。零 LLM 成本。
 2026-07-09 00:12:55 -04:00
iomgaa f733c13dd1 fix(llm): call_id 移入重试循环，每 attempt 独立 
消除重试时遥测主键冲突的根因。每次 attempt 独立记录，
parent_call_id 不受影响（循环外固定），更利于事后诊断重试轨迹。

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-07-09 00:12:38 -04:00
iomgaa 5a91f392f0 fix(telemetry): INSERT OR IGNORE + WAL + try/except 三层防御加固 
根治遥测写入主键冲突(UNIQUE constraint)和并发写锁(database is locked)
导致的异常冒泡，遥测侧信道错误不再污染 LLM 重试链。

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-07-09 00:11:54 -04:00
iomgaa d6e74f2734 feat(harness): runner.py — train loop orchestrator (#13 algorithm fidelity) 
Three-level nesting (epoch -> step -> per-skill), slow update 10-step
sequence, checkpoint/resume, early stop, probation accept/reject/rollback.

Key TRM4->TRM5 changes:
- sync -> async (all inference/diagnosis/evolve/validate awaited)
- LLMClient.from_env -> injected LLMProvider (DI via constructor)
- Direct DB/file access -> module functions (workspace/store/log)
- _TrainState as train() local, explicit param passing to helpers

Module-level pure functions extracted for testability:
resume_plan, _guard_infra_failures, _apply_batch_correctness,
_compute_total_steps, _should_early_stop, _format_applied_edits,
_fallback_summary, _write_skip_report, _outcome_to_quadrant_pairs,
_build_comparison_pairs, _batch_from_ids, _snapshot_current_skills.

Tests: 34 unit tests covering 13a-13e sub-tasks.
Radon: all functions Grade B or better.
 2026-07-07 13:43:20 -04:00
iomgaa 6baddcc17d feat(harness): validate.py — async 块序贯验证编排 + Probation 统一定义 2026-07-07 13:20:43 -04:00
iomgaa 8c9f7d2d37 feat(harness): checkpoint.py — TrainState 序列化 + 原子写 + 指纹校验 2026-07-07 13:13:37 -04:00
iomgaa 6b56fc8f98 feat(harness): inference.py — async run_inference + DI 2026-07-07 13:04:26 -04:00
iomgaa 49e272719e feat(harness): momentum.py — async 慢更新动量生成 2026-07-07 13:01:04 -04:00
iomgaa 767ac55787 feat(harness): observation.py — 五张观测表 + step/epoch 报告 2026-07-07 12:55:12 -04:00
iomgaa d7d8633dae feat(harness): gate_ladder.py — 信息阶梯 + BaselineCache (#6 算法保真) 2026-07-07 12:55:12 -04:00
iomgaa 48b423ef35 feat(harness): pools.py — 三池切分（test→validation→diagnosis） 2026-07-07 12:48:54 -04:00
iomgaa ad8fc176d0 feat(harness): batching.py — FFD + round-robin mini-batch (#10 算法保真) 2026-07-07 12:47:33 -04:00
iomgaa 461abf0329 feat(harness): workspace.py — Workspace lifecycle + VersionedSkillStore/PromptStore 
- ResolvedPaths frozen dataclass: store_dir, videos_dir, questions_dir,
  skills_dir, prompts_dir, workspace_dir, db_path, analyses_dir, runs_dir
- init_workspace: create ws + copy seed weights from store
- init_workspace_from_seed: create from seed with fail-fast questions check
- load_manifest / resolve_paths: manifest I/O + path resolution
  (skills/prompts resolve to workspace, videos/questions to store)
- update_manifest: key whitelist validation
- record_run: idempotent history append + per-video wiki dirs
- read_best / update_best: best pointer independent of current
- list_video_ids: videos with tree.json
- archive_workspace: move to .archive/<name>-<ts>
- VersionedSkillStore: implements core/evolution/protocols.py::SkillStore
- VersionedPromptStore: implements core/evolution/protocols.py::PromptStore
- 21 tests all passing (incl. Protocol compliance checks)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-07-07 12:41:59 -04:00
iomgaa 6858da80c7 feat(harness): store.py — Store 版本操作 + Seed 管理 
从 TRM4 core/workspace.py 拆出 Store + Seed 相关函数：
- _parse_version / list_versions / next_version / advance_version
- _write_meta / init_store
- init_seed / list_seeds / read_seed
- extract_run_db（保留原始 CREATE 语句重建主键约束）
- promote_to_seed（强校验版本一致 + 非 NULL + finally 清理）

26 个测试全部通过，radon 复杂度 A (2.83)。

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-07-07 12:36:36 -04:00
iomgaa fd76720dcf feat(harness): HarnessLog SQLite wrapper + RunLogImpl readonly port 
- HarnessLog: TRM4 direct port with WAL mode, threading.Lock, INSERT OR
  IGNORE idempotent _runs, context manager (completed/failed), create_table
  with auto run_id+timestamp, insert/insert_many/execute/query/log_event
- RunLogImpl: implements core/evolution/protocols.py::RunLog Protocol with
  independent sqlite3.connect for read-only SELECT (no _runs pollution),
  asyncio.to_thread wrapping for async interface
- _read_table: shared readonly helper with optional question_ids filtering,
  graceful empty-list return for missing tables
- Tests: 17 cases covering thread safety, idempotent inserts, context
  manager status, WAL mode, protocol compliance, readonly isolation

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-07-07 12:29:29 -04:00
iomgaa b47f634e61 fix(harness): Codex functional review 修复 — 命名/集成测试/delta_min/promote 消息 
- _apply_env_overrides → _apply_env_var_overrides，docstring 明确从 os.environ 读取
- 新增 TestLoadConfigRealYaml：用真实 config/default.yaml 验证嵌套 harness 解析
- 新增 test_delta_min_negative_rejected：覆盖 gate_delta_min >= 0 校验
- 恢复 promote 模式独立错误消息（从合并分支分离回 TRM4 原始提示）
- 77 个单元测试全部通过，radon 全部 Grade B 或更好

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-07-07 12:23:27 -04:00
iomgaa 535bd320b0 fix(harness): 补充 train 模式 run_id 校验 + 拆分函数保持 radon Grade B 
- _validate_mode_deps: 恢复 train 非 resume/fresh 时必须提供 run_id 校验
- 提取 _validate_train_run_id 用 early return 展平条件，避免 radon Grade C
- 合并 promote run_id 检查到 diagnose/evolve/promote 统一检查
- 新增 4 个测试：train+run_id / train+resume / train+fresh / train+baseline
- radon cc -n C 无输出（全部 Grade B 或更好）
- 74 个单元测试全部通过

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-07-07 12:14:28 -04:00
iomgaa ca02b5a91d feat(harness): RunConfig frozen dataclass + 四层校验 + YAML/CLI/.env 三层加载 
- RunConfig: 46 字段 frozen dataclass，从 TRM4 core/harness/config.py 迁移
- 四层校验链：_validate → _validate_edit_budget + _validate_minibatch + _validate_gate
- 新增 .env 覆盖层：工程配置（workspace_dir, store_dir）可通过 HARNESS_* 环境变量注入
- 合并优先级：CLI > .env > YAML（CLAUDE.md §4.5）
- load_config 支持嵌套 harness 段和扁平 YAML 两种格式
- run_id 改为默认空字符串（CLI-only 字段，YAML 不提供）
- resume/fresh 互斥校验不在 config 层（移至 runner.py）
- 70 个单元测试全部通过

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-07-07 11:57:35 -04:00
iomgaa 5c42e0309b feat(evolution): evolve.py per-target evolution — skill/system/tool (#9) 2026-07-07 10:26:58 -04:00
iomgaa 2c5b4c819c feat(evolution): evolve.py validation + helpers (#9) 2026-07-07 10:12:15 -04:00
iomgaa c6a81f8504 feat(evolution): diagnose.py aggregation + case packs + run_diagnosis (#8) 2026-07-07 10:04:48 -04:00
iomgaa fdbf9222ab feat(evolution): diagnose.py metrics + attribution (Stage 1, #8) 2026-07-07 09:55:22 -04:00
iomgaa ebd83810aa feat(evolution): validate.py — pure block validation decision functions (#7) 2026-07-07 09:47:45 -04:00
iomgaa 7f8ed56428 feat(evolution): patch.py — 补丁引擎移植（算法 #9），51 测试全通过 
从 TRM4 core/harness/patch.py (427 行) 零修改移植到 core/evolution/patch.py。

包含:
- 7 个常量（APPENDIX/MOMENTUM marker + MAX_CHARS + HEADING）
- appendix 区：追加/提取/替换/边界检测，损坏态 ValueError
- momentum 区：替换/提取/边界检测，注入防护
- apply_patch_with_report：4 种 op（append/insert_after/replace/delete）
- 冻结区坐标判定（每条 edit 重算）、report 1-based index
- 51 个单元测试覆盖全部公共 API 及边缘场景

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-07-07 09:44:05 -04:00
iomgaa 57793fb0f8 feat(evolution): gate.py — CE-Gate e-process 纯函数 (#5 算法保真) 
从 TRM4 core/harness/eprocess.py 逐行迁移，零逻辑变更:
- compute_e_value: 截断 Beta 混合 e 值（log 空间 + betainc 对称性）
- gate_decision: 四出口优先级链（confirmed→directional→futility→exhaustion→continue）
- probation_verdict: 试用期非对称双向结算
- 常量保真: _WALD_WIN=ln1.4, _WALD_LOSS=ln0.6, _SHRINK_PSEUDO=4

仅变更: import 路径 + GateParams/GateVerdict 移至 types.py + 中文 docstring

14 tests 覆盖: e 值数学、边界校验、四出口路径、试用期三分支

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-07-07 09:38:21 -04:00
iomgaa 47c2de71a2 feat(core/evolution): protocols.py + types.py 基础层 — 18 个 dataclass + 3 个 Protocol 
TRM4 诊断/进化/门控数据类型迁移至 TRM5 Clean Architecture 内核。
逐字段比对 TRM4 的 eprocess.py、diagnose.py、evolve.py 保真迁移。

types.py (18 个 dataclass):
- Gate: GateParams, GateVerdict (frozen, 原样迁移)
- 诊断: SpanMetrics, SkillStepAdherence, QuestionMetrics,
  ErrorAttribution, CaseSample, SkillCasePack, SystemCasePack,
  ToolCasePack, DiagnosisResult (全部 frozen=True)
- 进化: EvolutionRecord (mutable), RejectedEdit (frozen),
  EvolutionResult (frozen, 移除 skills_version/prompts_version)
- 新增: PairResult, QuadrantClassification (块验证纯决策输出)
- 新增: DiagnosePrompts, EvolvePrompts (模板束, frozen)

protocols.py (3 个只读 Protocol):
- SkillStore, PromptStore (同步文件读取)
- RunLog (异步日志查询, 隔离 SQL)

变更理由:
- QuestionMetrics 由 TRM4 mutable 改为 frozen (一次性构造)
- ErrorAttribution 由 TRM4 mutable 改为 frozen (构造时填入全部字段)
- EvolutionResult 移除版本管理字段 (app/ 职责)

涉及算法: #5(CE-Gate), #8(诊断瀑布), #9(进化引擎)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-07-07 09:34:04 -04:00
iomgaa c42813992f feat(search): __init__.py 公开 API + 修复 OCR 测试 asyncio 兼容性 2026-07-07 06:13:25 -04:00
iomgaa 502681694b feat(search): PromptManager — 搜索 Agent 提示词加载与组装 
从 TRM4 core/search/prompt.py 迁移。有意变更：
- 工具描述从 app.search.tools.get_tool_descriptions 获取
- format_user_prompt 参数显式化（question/options/l1_node_ids/task_type）

16 个单元测试覆盖 __init__、build_inference_prompt（auto/manual/none
三种 skill_mode）、format_user_prompt、load。

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-07-07 06:11:13 -04:00
iomgaa 96e63a3e19 feat(search): 实现 SearchToolDispatcher 工具调度器 (Task 7) 
- 新增 app/search/tools.py:
  - get_tool_descriptions() 工具描述文本（与 TRM4 一致）
  - SearchToolDispatcher 类实现 ToolDispatcher Protocol
  - dispatch() 按工具名路由: view_node / search_similar /
    observe_frame / submit_answer / read_skill
  - ValueError（未知工具）上抛，KeyError/FileNotFoundError 捕获返回错误文本
  - view_node: env.get_node_text + summarize_node + get_children_info + summarize_children
  - search_similar: env.search_similar + summarize_nodes_batch
  - observe_frame: env.resolve_frame_paths + get_subtitle + observe_frame + 字幕前置

- 修复 app/tree/environment.py get_children_info():
  - 原实现返回 _format_time_range (str) 导致 summarize_children 解包失败
  - 改为返回原始数值元组 via 新增 _node_time_range_raw 静态方法

- 新增 tests/unit/test_search_tools.py (14 tests):
  - get_tool_descriptions 含/不含 read_skill
  - 五种工具 dispatch 路由验证
  - 未知工具 ValueError + 节点不存在错误文本

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-07-07 06:07:27 -04:00
iomgaa b8706adb33 style: format vision.py 2026-07-07 05:53:33 -04:00
iomgaa d83e720c4b feat(search): app/search/vision.py — 两轮 VLM 帧观察模块 
从 TRM4 core/tree/vision.py 迁移 observe_frame，关键变更：
- VLM 调用走 VLMProvider.chat_with_images Protocol（images 传 Path）
- OCR 调用走 OCRProvider.transcribe_frames 异步 Protocol
- 遥测字段 session_id / parent_call_id 透传
- 帧文件存在性前置校验

12 个单元测试覆盖：两轮正常、仅提取、OCR 注入/失败降级/None、
VLM 提取失败、VLM 验证失败降级、帧缺失、stats 完整性、
分歧/弃权标记、遥测透传。

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-07-07 05:52:54 -04:00
iomgaa 224c75ba9e feat(adapters): OCRProvider Protocol + MonkeyOCRClient 异步适配器 
- app/ports.py: 新增 OCRProvider Protocol（runtime_checkable，与
  EmbeddingProvider 同级），定义 async transcribe_frames 端口
- adapters/ocr.py: 从 TRM4 core/tree/ocr.py 保真迁移 MonkeyOCRClient
  - assert → ValueError（P5 防御性校验）
  - 公开方法改 async（asyncio.to_thread 包装同步 HTTP）
  - 内部逻辑不变：多端点轮询、线程安全 Session、单帧降级、行去重
- tests/unit/test_ocr_adapter.py: 17 个测试覆盖 Protocol 合规、
  构造校验、健康检查、转录、降级、去重、轮询

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-07-07 05:47:55 -04:00
iomgaa 83e6475f90 feat(search): app/search/skills.py — 技能注册表与 frontmatter 解析 
从 TRM4 core/search/skills.py 保真迁移。提供 parse_frontmatter、
strip_frontmatter、SkillRegistry、discover_skills 四个公共 API。
逻辑完全一致，仅调整导入路径并添加中文 docstring。

17 个单元测试全部通过，覆盖正常/异常/边界场景。

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-07-07 05:46:25 -04:00
iomgaa 2bc5dc74c2 feat(tree): add get_node_text + get_children_info to TreeEnvironment 
- get_node_text(node_id, anchor=False): returns raw text + optional
  anchor_map dict by parsing [cN]/[sN] prefixes from anchored text
- get_children_info(node_id): returns structured child list with
  id/time_range/summary (description truncated to 120 chars)
- Both methods reuse existing internal helpers (_node_full_text,
  _node_anchored_text, _get_children, _node_description,
  _format_time_range)
- 9 new test cases across TestGetNodeText and TestGetChildrenInfo

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-07-07 05:45:48 -04:00
iomgaa f94c352d66 feat(question_gen): QuestionGenerator Protocol + 模块公开 API 
app/ports.py 追加 QuestionGenerator Protocol（预留 LLM 出题接口）。
app/question_gen/__init__.py re-export load_benchmark 和 stratified_sample。

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-07-07 04:48:21 -04:00
iomgaa c4d42eeca0 feat(question_gen): stratified_sample — 分层采样 + 题型保底 
算法 100% 保真 TRM4: task_types 过滤、correctness.get(id, False) 语义、
对题在前返回顺序、min_per_class 遍历 pool 全部题型（含稀疏类）。
所有参数显式传入，无默认值。

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-07-07 04:45:19 -04:00