Commit fe416ec9 fe416ec9cae627abe79814ec3a3e000feea99d02 by cnb.bofCdSsphPA

Make the fused Phase-1 ACR schema concrete with DDL samples

Constraint: Keep the storage design aligned to the current song-centric model while turning the 4-table fused schema into something engineers can directly review and implement.
Rejected: Keep only conceptual docs without concrete SQL | It leaves too much ambiguity about where slices, models, and features actually land.
Confidence: high
Scope-risk: narrow
Directive: Until the repository gains a production SQL file for the fused model, treat postgres_db_schema_samples.md as the authoritative DDL draft for media_entity/audio_object/feature_fact/set_membership.
Tested: git diff --check on touched files; /usr/local/miniconda3/bin/python scripts/check_markdown_links.py --root docs returned OK for 11 active markdown files
Not-tested: Executing the fused DDL against a live PostgreSQL schema
1 parent ac2e6730
## 2026-06-04
- 重写 `docs/postgres_db_schema_samples.md` 为当前 song-centric 融合优先方案的 DDL 草案,补齐 4 张核心表(`media_entity` / `audio_object` / `feature_fact` / `set_membership`)、落表说明、流程图与常用 SQL 样例。
-`docs/postgresql-data-model.md` 新增“切片数据 / 模型 / feature 具体落哪张表”的表格与流程图,明确当前默认回溯链为 `feature_fact -> audio_object(window) -> audio_object(asset) -> media_entity(song)`
- 收敛 `docs/README.md` 为当前 song-centric 设计入口,并清理 docs 目录中与当前设计无关的模板、开放数据、业务导出、历史路线类文档。
......
# PostgreSQL DB Schema Samples / 落库样例与 live 测试链路
# PostgreSQL DB Schema Samples / 融合优先 DDL 草案与查询样例
> 更新:2026-06-04
> 目标:给后续开发一个**可直接照着做**的 PostgreSQL 落库样例,同时保留一次真实 `pgvector` live 测试的证据
> 目标:把当前 **song-centric + 融合优先** 设计落成一版可以直接评审和继续实现的 PostgreSQL DDL 草案
---
## 一页结论
这次已经在用户提供的 PostgreSQL 上完成了下面几件事:
1. **真实连接 PostgreSQL 成功**
- DSN:`postgres://d2:***@127.0.0.1:5432/d2`
- PostgreSQL:`17.5`
- 已确认扩展 `vector` 存在
2. **真实应用 schema v2 成功**
- 使用隔离 schema:`acr_test`
- DDL 来源:`acr-engine/sql/acr_pg_schema_v2.sql`
- 已成功创建主数据、registry、embedding、candidate、decision 等表
3. **真实插入了一套完整的样例数据链**
- `canonical_song -> work -> recording -> recording_asset -> audio_window`
- `model_registry -> feature_set_registry -> audio_embedding -> retrieval_index_registry`
- `reference_set_registry -> reference_set_member`
4. **真实跑通了一轮 PostgreSQL + pgvector 检索评测**
- 输入:`acr-engine/data/pgvector_eval/music20/*.jsonl`
- 输出:`acr-engine/data/pgvector_eval/music20/live_pgvector_report.json`
- live pgvector 指标和现有 FAISS stand-in 指标**一致**
- overall `top1=0.9091`
- overall `top3=0.9545`
- `query_type=1`: `top1=1.0`
- `query_type=7`: `top1=0.0`, `top3=0.5`
5. **lineage trigger 已被验证有效**
- 脚本主动构造了三类错误 lineage:
- `recording`
- `audio_window`
- `audio_embedding`
- PostgreSQL 都正确拒绝插入
当前默认物理模型只看 4 张表:
---
## 本次使用的 live 测试资产
### 数据库
| 项目 | 值 |
|---|---|
| Host | `127.0.0.1` |
| Port | `5432` |
| DB | `d2` |
| User | `d2` |
| PostgreSQL | `17.5` |
| 扩展 | `vector`, `pg_trgm`, `ltree`, `hstore` 等 |
| 本次测试 schema | `acr_test` |
### 代码与产物
| 类型 | 路径 |
|---|---|
| 推荐 DDL | `acr-engine/sql/acr_pg_schema_v2.sql` |
| live 测试脚本 | `acr-engine/scripts/live_pgvector_music20_eval.py` |
| registry bootstrap 脚本 | `acr-engine/scripts/bootstrap_phase1_model_registry_live.py` |
| live 报告 | `acr-engine/data/pgvector_eval/music20/live_pgvector_report.json` |
| FAISS 对照报告 | `acr-engine/data/pgvector_eval/music20/songid_eval_report_fresh.json` |
| registry bootstrap 报告 | `acr-engine/data/pgvector_eval/music20/phase1_registry_bootstrap_report.json` |
| registry bootstrap 幂等性报告 | `acr-engine/data/pgvector_eval/music20/phase1_registry_bootstrap_idempotency_report.json` |
| extraction job bootstrap 报告 | `acr-engine/data/pgvector_eval/music20/phase1_extraction_jobs_report.json` |
| extraction plan 报告 | `acr-engine/data/pgvector_eval/music20/phase1_extraction_plan_report.json` |
| reference member bootstrap 报告 | `acr-engine/data/pgvector_eval/music20/phase1_reference_member_bootstrap_report.json` |
| chromaprint worker dry-run 报告 | `acr-engine/data/pgvector_eval/music20/phase1_worker_chromaprint_dry_run.json` |
| embedding worker dry-run 报告 | `acr-engine/data/pgvector_eval/music20/phase1_worker_embedding_dry_run.json` |
| job status 手工回写报告 | `acr-engine/data/pgvector_eval/music20/phase1_worker_mark_pending_report.json` |
| double-claim guard 报告 | `acr-engine/data/pgvector_eval/music20/phase1_worker_double_claim_guard_report.json` |
| 历史对照报告 | `acr-engine/data/pgvector_eval/music20/songid_eval_report.json` |
---
## 这次实际落进去的数据链
```mermaid
flowchart LR
A[reference_embeddings.jsonl] --> B[canonical_song]
B --> C[work]
C --> D[recording]
D --> E[recording_asset]
E --> F[audio_window]
F --> G[audio_embedding]
G --> H[audio_embedding_vector_192]
I[model_registry] --> J[feature_set_registry]
J --> G
K[reference_set_registry] --> L[reference_set_member]
D --> L
M[query_embeddings.jsonl] --> N[SQL pgvector search]
H --> N
N --> O[retrieval_candidate]
O --> P[match_decision]
```text
media_entity -> audio_object -> feature_fact -> set_membership
```
---
## 为什么这次 live 测试要把 24 维 embedding pad 到 192 维
当前 `schema v2` 里提供了:
- `audio_embedding_vector_192`
- `audio_embedding_vector_768`
而这次本地 `music20` 样例 embedding 是 **24 维 chroma 特征**
所以本次 live 测试采用的策略是:
- **逻辑维度**`24`
- **物理落盘维度**`192`
- **做法**:后面补 `0`,写入 `vector(192)`
这样做的原因:
- 不需要临时改 schema
- 仍然可以验证 schema v2 + pgvector + retrieval 链路
- 对这批样例的余弦相似度排序不会产生方向性错误(所有向量都以同样方式补零)
对应逻辑语义:
这只是**验证链路**用法。
生产里应按真实 encoder 维度选择:
- `MERT` / `MuQ` 之类高维 embedding:直接落合适物理表
- 如果后续维度更多,建议继续扩成 `audio_embedding_vector_<dim>` 分桶策略
---
## 本次实际落盘样例
以下内容来自 `acr_test` schema 的真实查询结果。
### 1. canonical_song
```json
{"canonical_song_id":1,"biz_song_code":"100","title":"Song 100","primary_artist":"Artist 100","rights_status":"protected"}
{"canonical_song_id":2,"biz_song_code":"101","title":"Song 101","primary_artist":"Artist 101","rights_status":"protected"}
```text
song -> asset -> window -> fingerprint / embedding
```
### 2. work
其中:
- `media_entity`:当前默认只承载 `song`
- `audio_object`:统一承载 `asset``window`
- `feature_fact`:统一承载 `fingerprint``embedding`
- `set_membership`:统一承载 `reference / hot / eval` 等集合关系
```json
{"work_id":1,"canonical_song_id":1,"work_code":"work-100","work_title":"Song 100","composer":"Composer 100"}
{"work_id":2,"canonical_song_id":2,"work_code":"work-101","work_title":"Song 101","composer":"Composer 101"}
```
### 3. recording
```json
{"recording_id":1,"work_id":1,"canonical_song_id":1,"recording_code":"rec-100","version_type":"master_reference","is_reference":true,"reference_priority":100}
{"recording_id":2,"work_id":2,"canonical_song_id":2,"recording_code":"rec-101","version_type":"master_reference","is_reference":true,"reference_priority":101}
```
### 4. recording_asset
```json
{"asset_id":1,"recording_id":1,"asset_role":"reference_audio","storage_uri":"/workspace/downloads/100/type_11/93dfdeb0-7da5-42a8-9c71-cf12af57dd191650256918.wav","storage_scheme":"file","duration_sec":8.0,"ingest_status":"ready"}
{"asset_id":2,"recording_id":2,"asset_role":"reference_audio","storage_uri":"/workspace/downloads/101/type_11/83c0c07f-4f96-4ff4-998c-58db910f3cfa1650256915.wav","storage_scheme":"file","duration_sec":8.0,"ingest_status":"ready"}
```
---
### 5. audio_window
## 1. 4 张表分别存什么
```json
{"window_id":1,"asset_id":1,"recording_id":1,"work_id":1,"canonical_song_id":1,"window_index":0,"start_sec":0.0,"end_sec":8.0,"segment_role":"reference","segment_type":"full_clip"}
{"window_id":2,"asset_id":2,"recording_id":2,"work_id":2,"canonical_song_id":2,"window_index":0,"start_sec":0.0,"end_sec":8.0,"segment_role":"reference","segment_type":"full_clip"}
```
| 表 | 当前主要 type | 存什么 | 为什么存在 |
|---|---|---|---|
| `media_entity` | `song` | 歌曲主实体 | 最终归属对象是 `song_id` |
| `audio_object` | `asset`, `window` | 原始音频文件 + 切片 | 同一个 song 下可有多个音频,切片仍需 evidence |
| `feature_fact` | `fingerprint`, `embedding` | 模型、feature set、特征结果 | 统一 exact/semantic 特征事实 |
| `set_membership` | `reference_set`, `eval_set`, `hot_set` | 谁属于哪个集合 | 管理 reference 与评测范围 |
### 6. model_registry / feature_set_registry
---
```json
{"model_id":1,"model_name":"local_chroma24","model_family":"chroma_baseline","model_version":"v1","output_embedding_dim":24,"default_window_sec":8.0}
{"feature_set_id":1,"model_id":1,"feature_name":"chroma24_songid_eval","embedding_dim":24,"distance_metric":"cosine","feature_schema_version":"v1"}
## 2. 当前推荐 DDL 草案
### 2.1 `media_entity`
```sql
create table if not exists media_entity (
entity_id bigserial primary key,
entity_type text not null check (entity_type in ('song', 'work', 'recording')),
root_song_id bigint,
parent_entity_id bigint,
biz_key text,
title text not null,
artist_name text,
entity_status text not null default 'active',
metadata_json jsonb not null default '{}'::jsonb,
created_at timestamptz not null default now(),
updated_at timestamptz not null default now(),
constraint fk_media_entity_root_song
foreign key (root_song_id) references media_entity(entity_id),
constraint fk_media_entity_parent
foreign key (parent_entity_id) references media_entity(entity_id)
);
create unique index if not exists uq_media_entity_song_biz_key
on media_entity(entity_type, biz_key)
where biz_key is not null;
create index if not exists idx_media_entity_root_song
on media_entity(root_song_id);
```
### 7. audio_embedding
```json
{"embedding_id":1,"feature_set_id":1,"asset_id":1,"window_id":1,"recording_id":1,"canonical_song_id":1,"embedding_storage_mode":"pgvector_inline_192_padded","is_indexed":true}
{"embedding_id":2,"feature_set_id":1,"asset_id":2,"window_id":2,"recording_id":2,"canonical_song_id":2,"embedding_storage_mode":"pgvector_inline_192_padded","is_indexed":true}
### 2.2 `audio_object`
```sql
create table if not exists audio_object (
object_id bigserial primary key,
object_type text not null check (object_type in ('asset', 'window')),
song_id bigint not null references media_entity(entity_id),
parent_object_id bigint references audio_object(object_id),
source_type text,
storage_uri text,
storage_scheme text,
checksum text,
codec text,
sample_rate integer,
channels integer,
duration_ms integer,
start_ms integer,
end_ms integer,
object_status text not null default 'ready',
metadata_json jsonb not null default '{}'::jsonb,
created_at timestamptz not null default now(),
updated_at timestamptz not null default now(),
constraint ck_audio_object_window_parent
check (
(object_type = 'asset' and parent_object_id is null)
or (object_type = 'window' and parent_object_id is not null)
)
);
create index if not exists idx_audio_object_song_type
on audio_object(song_id, object_type);
create index if not exists idx_audio_object_parent
on audio_object(parent_object_id);
create unique index if not exists uq_audio_object_asset_checksum
on audio_object(song_id, checksum)
where object_type = 'asset' and checksum is not null;
create unique index if not exists uq_audio_object_window_range
on audio_object(parent_object_id, start_ms, end_ms)
where object_type = 'window';
```
### 8. reference_set_registry / retrieval_index_registry
```json
{"reference_set_id":1,"set_name":"music20_live_reference","encoder_scope":"local_chroma24","status":"active"}
{"retrieval_index_id":1,"feature_set_id":1,"index_name":"music20_live_pgvector_hnsw","index_backend":"pgvector","index_type":"hnsw_cosine","row_count":20,"index_status":"active"}
### 2.3 `feature_fact`
```sql
create table if not exists feature_fact (
feature_id bigserial primary key,
feature_type text not null check (feature_type in ('fingerprint', 'embedding')),
object_id bigint not null references audio_object(object_id),
song_id bigint not null references media_entity(entity_id),
model_name text not null,
model_version text not null,
feature_set_name text not null,
feature_schema_ver text not null default 'v1',
embedding_dim integer,
fingerprint_value text,
embedding_uri text,
vector_table_name text,
checksum text,
feature_status text not null default 'ready',
metadata_json jsonb not null default '{}'::jsonb,
created_at timestamptz not null default now(),
updated_at timestamptz not null default now(),
constraint ck_feature_payload
check (
(feature_type = 'fingerprint' and fingerprint_value is not null)
or (feature_type = 'embedding' and (embedding_uri is not null or vector_table_name is not null))
)
);
create index if not exists idx_feature_fact_object_type
on feature_fact(object_id, feature_type);
create index if not exists idx_feature_fact_song_type
on feature_fact(song_id, feature_type);
create unique index if not exists uq_feature_fact_embedding
on feature_fact(object_id, model_name, model_version, feature_set_name, feature_type)
where feature_type = 'embedding';
create unique index if not exists uq_feature_fact_fingerprint
on feature_fact(object_id, model_name, model_version, feature_set_name, feature_type)
where feature_type = 'fingerprint';
```
### 9. retrieval_candidate / match_decision
```json
{"retrieval_candidate_id":1,"query_id":"music20-q0000-t1-song100","source_lane":"semantic","candidate_level":"canonical_song","candidate_id":1,"raw_score":0.99998549,"normalized_score":0.90998694,"rank_no":1}
{"retrieval_candidate_id":2,"query_id":"music20-q0000-t1-song100","source_lane":"semantic","candidate_level":"canonical_song","candidate_id":17,"raw_score":0.9527432,"normalized_score":0.86746888,"rank_no":2}
{"match_decision_id":1,"query_id":"music20-q0000-t1-song100","canonical_song_id":1,"decision_status":"matched","decision_score":0.90998694}
### 2.4 `set_membership`
```sql
create table if not exists set_membership (
membership_id bigserial primary key,
set_type text not null check (set_type in ('reference_set', 'eval_set', 'hot_set')),
set_name text not null,
member_type text not null check (member_type in ('song', 'asset', 'window', 'feature')),
member_id bigint not null,
song_id bigint references media_entity(entity_id),
is_active boolean not null default true,
priority integer not null default 100,
metadata_json jsonb not null default '{}'::jsonb,
created_at timestamptz not null default now(),
updated_at timestamptz not null default now()
);
create unique index if not exists uq_set_membership_unique
on set_membership(set_type, set_name, member_type, member_id);
create index if not exists idx_set_membership_set_lookup
on set_membership(set_type, set_name, is_active, priority);
```
---
## 本次 live 测试的表规模
## 3. 切片 / 模型 / feature 到底落哪张表
| 表 | 行数 |
|---|---:|
| `canonical_song` | 20 |
| `work` | 20 |
| `recording` | 20 |
| `recording_asset` | 20 |
| `audio_window` | 20 |
| `audio_embedding` | 20 |
| `retrieval_candidate` | 220 |
| `match_decision` | 22 |
说明:
- 20 条 reference song
- 22 条 query
- 每条 query 写入 top10 candidate,因此 `22 * 10 = 220`
---
## 本次测试链路与逻辑
### A. schema / 数据完整性测试
1. 连接 PostgreSQL
2. 创建隔离 schema:`acr_test`
3. 执行 `acr_pg_schema_v2.sql`
4. 初始化:
- `model_registry`
- `feature_set_registry`
- `reference_set_registry`
- `retrieval_index_registry`
5. 导入 20 条 reference 样例
6. 验证表计数是否正确
7. 主动插入三类错误 lineage:
- `recording.canonical_song_id``work.canonical_song_id` 不一致
- `audio_window.recording_id``recording_asset.recording_id` 不一致
- `audio_embedding``canonical_song_id` 与父 `audio_window` 不一致
8. 预期 PostgreSQL trigger 拒绝这些坏写入
### B. live 检索评测测试
1.`reference_embeddings.jsonl` 读 20 条 reference embedding
2. 写入 `audio_embedding` + `audio_embedding_vector_192`
3.`query_embeddings.jsonl` 读 22 条 query embedding
4. 每条 query 用 SQL 执行 `pgvector cosine` 检索
5. 在应用层做 song-level aggregation:
- `max_sim`
- `top3_avg`
- `vote`
- `combined = 0.6 * max_sim + 0.3 * top3_avg + 0.1 * vote_factor`
6. 将 top10 候选落表到 `retrieval_candidate`
7. 将 top1 决策落表到 `match_decision`
8. 计算:
- overall `top1/top3/top10/mrr`
- `by_query_type`
- `confusion_focus`
### C. confusion test 口径
当前这次 live 样例里只实际包含:
- `type_1`
| 对象 | 落表 | 关键字段 |
|---|---|---|
| song | `media_entity` | `entity_type='song'` |
| 原始音频 | `audio_object` | `object_type='asset'` |
| 切片窗口 | `audio_object` | `object_type='window'`, `parent_object_id=<asset_id>` |
| 指纹特征 | `feature_fact` | `feature_type='fingerprint'` |
| embedding 特征 | `feature_fact` | `feature_type='embedding'` |
| 模型名/版本 | `feature_fact` | `model_name`, `model_version` |
| feature set | `feature_fact` | `feature_set_name`, `feature_schema_ver` |
| reference 集归属 | `set_membership` | `set_type='reference_set'` |
---
## Phase-1 worker dry-run 测试链路(新增)
这一步解决的是:
> planner 虽然已经能输出可复制命令,但之前仓库里没有真正的 worker 可以消费这些命令。
## 4. 流程图
现在已经补上最小真实 worker:
- `acr-engine/workers/mark_job_status.py`
- `acr-engine/workers/run_chromaprint_job.py`
- `acr-engine/workers/run_embedding_job.py`
### 测试目标
验证下面这条链是真实可走通的:
### 4.1 落库流程
```mermaid
flowchart TD
A[feature_extraction_job pending] --> B[planner 生成命令模板]
B --> C[worker 读取 extraction_job_id]
C --> D[worker 解析 feature/model/scope]
D --> E[worker 回写 running/completed]
E --> F[bootstrap 脚本可再次恢复 pending]
A[media_entity\nentity_type=song] --> B[audio_object\nobject_type=asset]
B --> C[audio_object\nobject_type=window]
C --> D1[feature_fact\nfeature_type=fingerprint]
C --> D2[feature_fact\nfeature_type=embedding]
B --> E[set_membership\nreference_set]
C --> E
```
### 当前验证口径
这轮先不跑真实模型推理,而是先验证工业执行面:
1. `run_chromaprint_job.py`
- 真实连接 PostgreSQL
- 读取 `feature_extraction_job=1`
- 解析 `reference_set:phase1_hot_reference_v1`
- 回写 `running -> completed`
2. `run_embedding_job.py`
- 真实连接 PostgreSQL
- 读取 `feature_extraction_job=2`
- 解析 `mert v1-95m`
- 回写 `running -> completed`
3. 再次执行 `bootstrap_phase1_extraction_jobs_live.py`
- 把 job 状态恢复为 `pending`
- 保证后续 session 可以从同一批 jobs 继续推进
4. `plan_phase1_extraction_jobs_live.py`
- 当前生成的主命令模板已显式带:
- `cd /workspace/acr-engine &&`
- `PG_DSN="${PG_DSN:?set PG_DSN}"`
- `--complete-dry-run`
- 因此 `primary_command` 已经可以直接复现当前 dry-run 状态流转
### 为什么先做 dry-run
因为当前第一优先级是把下面这些东西固定住:
- job contract
- status transitions
- scope 解析
- planner -> worker 命令兼容性
等这个骨架稳定后,再把真实的:
- chromaprint 提取
- MERT / MuQ embedding 提取
接进去,整体风险更低。
### 当前 live 结果的关键更新
本轮已经新增:
- `acr-engine/scripts/bootstrap_phase1_reference_members_live.py`
并已把 `acr_test.phase1_hot_reference_v1` 真实挂上 `20` 条 reference recordings,因此当前 worker dry-run 看到的 scope 已变成:
- `recording_count=20`
- `ready_asset_count=20`
- `active_window_count=20`
这说明当前验证已经从“空 scope 状态机演示”推进到:
- planner -> worker 命令兼容
- worker -> PostgreSQL 状态流转可用
- reference_set -> recording/asset/window scope 解析可用
仍然要注意:
- 这依然是 **dry-run**
-**不是**真实特征抽取吞吐验证
### 当前并发/重试保护验证
本轮还额外做了一个故意的重复执行测试:
1. 先让 `feature_extraction_job=1``pending -> running -> completed`
2. 不做 reset,直接再次执行同一个 chromaprint dry-run worker
3. 预期第二次执行失败,因为 worker 认领 job 时要求:
- `expected_status = pending`
实际结果见:
- `phase1_worker_double_claim_guard_report.json`
关键证据:
- `double_claim_exit_code = 1`
- `stderr = failed to update feature_extraction_job=1 with expected_status=pending`
这证明当前最小 worker contract 已经具备:
- 基础 claim guard
- 基础重复执行保护
---
## exact lane 非 dry-run 写入尝试(新增)
这轮又继续向前推进了一步:
> `run_chromaprint_job.py` 已经不再只是 dry-run。
当前行为:
1. 如果 reference asset 对应音频文件可读:
- 提取 repo-local chromaprint-style hash
- 写 artifact JSON
-`audio_fingerprint`
- job 标记为 `completed`
2. 如果 reference asset 对应音频文件不可读:
- job 标记为 `failed`
-`metadata_json` 里写入:
- `failure_reason`
- `missing_asset_count`
- `missing_asset_samples`
### 本轮 live 结果
报告:
- `acr-engine/data/pgvector_eval/music20/phase1_worker_chromaprint_write_attempt.json`
- `acr-engine/data/pgvector_eval/music20/phase1_worker_chromaprint_write_guard_report.json`
关键结果:
- `scope_asset_count = 20`
- `processed_assets = 0`
- `missing_assets = 20`
- `job_status = failed`
- `failure_reason = unreadable_audio_assets`
- `audio_fingerprint_count = 0`
### 这说明什么
说明当前 exact lane 的 PostgreSQL worker contract 已经具备:
- 非 dry-run 的真实写入路径
- 明确的失败落盘
- 环境缺失时的可审计错误证据
- “全量成功 / 否则失败”的批次语义
- `audio_fingerprint(feature_set_id, asset_id)` 的原子 upsert 约束基础
但当前容器仍然缺:
- `/workspace/downloads/...` 实际音频文件
因此这轮证明的是:
- **worker 写入路径已经接上**
- **当前被环境数据挂载阻塞**
而不是 exact lane 逻辑本身还没落地。
- `type_7`
因此:
- `type_7` 可以作为 **当前 live confusion check**
- `type_8 / type_16` 这次 live JSONL 没覆盖到,只能结合历史业务样本结果一起看
---
## live pgvector 结果
### 1. overall
| 指标 | 值 |
|---|---:|
| query 数 | 22 |
| top1 | `0.9091` |
| top3 | `0.9545` |
| top10 | `0.9545` |
| MRR | `0.9343` |
| mean rank | `1.8182` |
### 2. by query type
| query_type | count | top1 | top3 | top10 | 解释 |
|---|---:|---:|---:|---:|---|
| `1` | 20 | `1.0` | `1.0` | `1.0` | clean / near-clean |
| `7` | 2 | `0.0` | `0.5` | `0.5` | 当前 live confusion 样例 |
| `8` | 0 | N/A | N/A | N/A | 本次 live JSONL 未覆盖 |
| `16` | 0 | N/A | N/A | N/A | 本次 live JSONL 未覆盖 |
### 3. 和现有 FAISS stand-in 的一致性
| 路径 | overall top1 | overall top3 | type_1 top1 | type_7 top1 | type_7 top3 |
|---|---:|---:|---:|---:|---:|
| live PostgreSQL + pgvector | `0.9091` | `0.9545` | `1.0` | `0.0` | `0.5` |
| FAISS stand-in | `0.9091` | `0.9545` | `1.0` | `0.0` | `0.5` |
结论:
> 当前 `acr_test` 上的 live pgvector 路径,已经和现有 stand-in 检索逻辑对齐。
> 问题不在“PostgreSQL 落盘导致召回变坏”,而在当前样例 embedding 对混淆类 query 本身就不够强。
---
## 本轮补充:完整 lineage trigger 负例覆盖
本轮重新执行 live 脚本后,`live_pgvector_report.json` 中的 `lineage_negative_test` 已从“单条 audio_window 验证”升级为“三类坏写入全部验证”:
| case | 结果 | PostgreSQL 返回 |
|---|---|---|
| `recording_lineage_mismatch` | 拒绝成功 | `recording.canonical_song_id ... mismatches work.canonical_song_id ...` |
| `audio_window_lineage_mismatch` | 拒绝成功 | `Invalid asset_id=... or recording_id=... for audio_window` |
| `audio_embedding_lineage_mismatch` | 拒绝成功 | `audio_embedding lineage mismatch` |
这意味着:
> 当前 schema v2 的三条核心 lineage trigger,已经都有真实负例证据,而不只是“理论上存在”。
同时,本轮还补了两条机械验证证据:
- `py_compile` 通过:`live_pgvector_music20_eval.py`
- `git diff --check` 通过:本轮脚本、报告、文档变更无格式问题
---
## 混淆测试补充视图
### 1. 当前 live 样例视图
| query_type | 数据来源 | top1 | top3 | 结论 |
|---|---|---:|---:|---|
| `7` | `live_pgvector_report.json` | `0.0` | `0.5` | 已明显偏弱 |
### 2. 历史本地 20-song 小样本视图
来自:`acr-engine/data/local_eval/music20_summary.json`
| query_type | top1 | top3 |
|---|---:|---:|
| `1` | `1.0` | `1.0` |
| `7` | `0.45` | `0.65` |
| `8` | `0.4667` | `0.7333` |
| `16` | `0.4167` | `0.4167` |
说明:
- 这是**本地小样本 chroma/FAISS sanity flow** 的结果
- 它比当前 live JSONL 的 type_7 好,是因为样本构成不同
- 不能把这个结果直接当作生产效果,但可以当作“当前特征在小样本内并非完全不可用”的旁证
### 3. 历史业务语料 voice correctness 视图
| query_type | 文件 | top1 | top3 | 结论 |
|---|---|---:|---:|---|
| `7` | `voice_workspace20_type7_eval.json` | `0.0` | `0.05` | 极弱 |
| `8` | `voice_workspace20_type8_eval.json` | `0.0` | `0.0` | 极弱 |
| `16` | `voice_workspace20_type16_eval.json` | `0.0` | `0.0` | 极弱 |
结论:
### 4.2 查询回溯流程
> 只要 query 进入更真实、更混淆的业务样本,当前这条 baseline 仍然远远不够。
> PostgreSQL 落库没问题,真正的问题还是 **embedding lane 对 hard case 的判别力不足**。
---
## 这次验证了什么,没验证什么
### 已验证
- PostgreSQL 真实连通可用
- `vector` 扩展可用
- schema v2 可以真实 apply
- main lineage trigger 可以真实拦截坏数据
- 样例数据链可以按 `song -> work -> recording -> asset -> window -> embedding` 落盘
- live pgvector 检索和现有 stand-in 逻辑一致
- `retrieval_candidate` / `match_decision` 可以真实承载在线结果
- semantic worker 已真实验证 preflight failure 语义:既能识别 `/workspace/downloads` 缺失,也能识别 `torch/torchaudio/transformers` 缺失
- `audio_embedding` 已补上 window / asset 双路幂等唯一键,为后续 encoder 真实 upsert 预留稳定主键
```mermaid
flowchart LR
A[feature_fact] --> B[audio_object window]
B --> C[audio_object asset]
C --> D[media_entity song]
```
### 未验证
### 4.3 写入时序图
- 还没把 `MERT` / `MuQ` 真正接进这套 live 路径
- 这次 live 样例没有覆盖 `type_8 / type_16` 的 JSONL embedding
- 这次只验证了 20-song 级别,不代表 30w song 的索引性能
- 还没做多 recording / 多 version / cover lane 的聚合测试
```mermaid
sequenceDiagram
participant ING as Ingest/Extract Job
participant DB as PostgreSQL
ING->>DB: insert media_entity(song)
ING->>DB: insert audio_object(asset)
ING->>DB: insert audio_object(window)
ING->>DB: insert feature_fact(fingerprint)
ING->>DB: insert feature_fact(embedding)
ING->>DB: insert set_membership(reference_set)
```
---
## 推荐的下一步
### 本轮新增:Phase-1 registry 已可 live bootstrap
除了 live 检索脚本外,本轮还新增了:
- `acr-engine/scripts/bootstrap_phase1_model_registry_live.py`
它已经在 `acr_test` schema 上真实写入了:
- `chromaprint`
- `mert`
- `muq`
- `ecapa`
- 对应 feature sets
- `phase1_hot_reference_v1`
## 5. 最常用 SQL 样例
对应 live 报告:
- `acr-engine/data/pgvector_eval/music20/phase1_registry_bootstrap_report.json`
### 5.1 写一首歌
### 本轮继续新增:Phase-1 extraction jobs 已可 live bootstrap
在 registry bootstrap 之后,本轮又新增:
- `acr-engine/scripts/bootstrap_phase1_extraction_jobs_live.py`
它已经在 `acr_test` schema 上真实创建了 5 条 `feature_extraction_job`
- `chromaprint`
- `mert 5s/2.5s`
- `mert 10s/5s`
- `muq 5s/2.5s`
- `ecapa 5s/2.5s`
对应 live 报告:
- `acr-engine/data/pgvector_eval/music20/phase1_extraction_jobs_report.json`
### 本轮继续新增:pending jobs 已可生成 live execution plan
在 extraction jobs 之后,本轮又新增:
- `acr-engine/scripts/plan_phase1_extraction_jobs_live.py`
它已经在 `acr_test` schema 上真实读取 5 条 `pending` jobs,并生成按执行顺序排列的 plan:
- `chromaprint exact lane` 优先
- 然后是 `mert / muq / ecapa` 的 semantic lanes
对应 live 报告:
- `acr-engine/data/pgvector_eval/music20/phase1_extraction_plan_report.json`
本轮补充后,plan 里还会真实给出:
- `command_suggestions`
- `primary_command`
也就是从 PostgreSQL 的 pending jobs 已经可以直接走到“可复制的执行命令模板”。
### 路线 1:继续做 PostgreSQL 工程化
1.`live_pgvector_music20_eval.py` 泛化成:
- 可导入任意 manifest/reference set
- 可选择 encoder / feature set
- 可直接生成 `retrieval_candidate` / `match_decision` 报告
2. 增加:
- `audio_embedding_vector_1024` / 其他常见维度表
- bulk COPY / batched insert
- HNSW 参数管理
### 路线 2:继续做混淆类效果验证
1. 构造真正覆盖 `type_8 / type_16` 的 query embedding JSONL
2. 用同一条 live script 重跑 PostgreSQL 评测
3. 对比:
- `Chromaprint only`
- `semantic only`
- `fusion`
4. 输出 confusion bucket 报告
```sql
insert into media_entity (entity_type, biz_key, title, artist_name)
values ('song', 'song-10001', 'Song 10001', 'Artist A')
returning entity_id;
```
当前环境补充说明:
- 本轮继续尝试从 `/workspace/downloads` 直接补 `type_8 / type_16` live 样本时,发现该目录在当前容器里**不存在**
- 因此,下一轮若要继续这条支线,需要先恢复/挂载业务样本目录,或把对应 query 音频与 reference 清单重新落到仓库可见路径
### 5.2 写一个 asset
### 路线 3:切到 Phase-1 encoder-only 主线
```sql
insert into audio_object (
object_type, song_id, source_type, storage_uri, storage_scheme,
checksum, codec, sample_rate, channels, duration_ms
) values (
'asset', :song_id, 'official', 's3://bucket/song10001/master.wav', 's3',
'sha256:xxx', 'wav', 44100, 2, 215000
) returning object_id;
```
1. 保留当前 PostgreSQL 结构不变
2.`local_chroma24` 替换成:
- `MERT-v1-95M`
- `MuQ`
3. 继续复用:
- `model_registry`
- `feature_set_registry`
- `reference_set_registry`
- `retrieval_index_registry`
4. 重新测:
- clean
- type_7
- type_8
- type_16
- 业务 voice bucket
### 5.3 写一个 window
---
```sql
insert into audio_object (
object_type, song_id, parent_object_id, start_ms, end_ms, duration_ms
) values (
'window', :song_id, :asset_id, 30000, 35000, 5000
) returning object_id;
```
## 复现命令
### 5.4 写一条 embedding
```sql
insert into feature_fact (
feature_type, object_id, song_id,
model_name, model_version, feature_set_name,
feature_schema_ver, embedding_dim, embedding_uri, vector_table_name
) values (
'embedding', :window_id, :song_id,
'mert', 'v1-95m', 'mert_5s_hop2.5_meanpool',
'v1', 768, 's3://bucket/emb/song10001_win0001.npy', 'audio_embedding_vector_768'
);
```
### 1. live PostgreSQL + pgvector 测试
### 5.5 把 asset 挂到 reference 集
```bash
cd /workspace/acr-engine
/usr/local/miniconda3/bin/python scripts/live_pgvector_music20_eval.py \
--dsn 'postgres://d2:d2pass@127.0.0.1:5432/d2' \
--schema acr_test \
--reset-schema \
--output data/pgvector_eval/music20/live_pgvector_report.json
```sql
insert into set_membership (
set_type, set_name, member_type, member_id, song_id, priority
) values (
'reference_set', 'phase1_hot_reference_v1', 'asset', :asset_id, :song_id, 100
);
```
### 2. FAISS stand-in 对照测试
```bash
cd /workspace/acr-engine
/usr/local/miniconda3/bin/python scripts/evaluate_songid_pgvector_path.py \
--reference-embeddings-jsonl data/pgvector_eval/music20/reference_embeddings.jsonl \
--query-embeddings-jsonl data/pgvector_eval/music20/query_embeddings.jsonl \
--output data/pgvector_eval/music20/songid_eval_report_fresh.json
### 5.6 从 embedding 回查 song
```sql
select ff.feature_id,
ff.model_name,
ff.model_version,
ff.feature_set_name,
win.object_id as window_id,
ast.object_id as asset_id,
song.entity_id as song_id,
song.title,
song.artist_name
from feature_fact ff
join audio_object win
on win.object_id = ff.object_id
and win.object_type = 'window'
join audio_object ast
on ast.object_id = win.parent_object_id
and ast.object_type = 'asset'
join media_entity song
on song.entity_id = ff.song_id
and song.entity_type = 'song'
where ff.feature_id = :feature_id;
```
---
## 一句话结论
> PostgreSQL 这条路已经可以真实落 schema、落样例、落 candidate、落 decision,也能真实跑 pgvector 检索。
> 当前最大的短板不再是“怎么存”,而是 **当前 baseline embedding 对混淆 query 的召回仍然明显不够**。
## 新增:Phase-1 semantic worker live 证据
本轮继续对 `run_embedding_job.py` 做 live PostgreSQL 验证,目标不是伪造 embedding,而是把 **失败语义先固定住**
### 结果摘要
`extraction_job_id=2``mert v1-95m`, `5s/2.5s`)执行非 dry-run worker 后:
| 项 | 结果 |
|---|---|
| `scope_window_count` | `20` |
| `job_status` | `failed` |
| `output_count` | `0` |
| `failure_reason` | `preflight_failed` |
| `preflight_blockers` | `['unreadable_audio_assets', 'model_runtime_unavailable']` |
| `vector_table_report.resolved` | `true` |
| `audio_embedding_vector_768_count` | `0` |
## 6. 当前设计意图
说明:
### 为什么切片和原始音频统一用 `audio_object`
- 新同学更容易理解
- asset/window 共用大量字段
- 减少专用表数量
- 当前语义 lane 不是“没做事”,而是已经真实走到了 PostgreSQL job scope / runtime / vector table / asset 路径检查
- 只是当前容器同时被两个外部条件挡住:
1. `/workspace/downloads/...` 未挂载
2. `torch / torchaudio / transformers` 未安装
### 为什么模型和特征统一用 `feature_fact`
- 不再一模型一张表
- 不再 fingerprint 一张表、embedding 一张表后继续扩散
- 更适合未来继续换 MERT / MuQ / 新模型
### 证据文件
### 为什么 reference 集用 `set_membership`
- song / asset / window / feature 都可以挂集合
- reference / eval / hot 切换统一处理
- `acr-engine/data/pgvector_eval/music20/phase1_worker_embedding_write_attempt.json`
- `acr-engine/data/pgvector_eval/music20/phase1_worker_embedding_write_guard_report.json`
- `acr-engine/data/pgvector_eval/music20/phase1_worker_embedding_post_state.json`
### 为什么要先补唯一键
当前 `audio_embedding` 已新增:
- `uq_audio_embedding_feature_window`
- `uq_audio_embedding_feature_asset`
设计意图是:
1. 同一 `feature_set_id + window_id` 的 embedding 重跑时可以稳定 upsert
2. 将来如果有 asset-level embedding,也能独立幂等
3. 不把幂等职责留给应用层“先查再写”
这一步对后续的 `MERT / MuQ / ECAPA` 都通用。
## 新增:Semantic preflight blocker matrix
为了避免下次 session 继续手工逐个试,本轮又新增:
- `acr-engine/scripts/run_phase1_embedding_preflight_matrix_live.py`
- `acr-engine/data/pgvector_eval/music20/phase1_embedding_preflight_matrix_report.json`
它会:
1. 先把 `feature_extraction_job` 重置回 `pending`
2. 顺序执行全部 semantic jobs(当前是 `mert 5s``mert 10s``muq 5s``ecapa 5s`
3. 归并输出每个 job 的:
- `failure_reason`
- `preflight_blockers`
- `runtime_missing_dependencies`
- `vector_table_report`
### 当前矩阵结果
| job | model | vector table | blockers | runtime missing |
|---|---|---|---|---|
| 2 | `mert v1-95m` | `audio_embedding_vector_768` | `unreadable_audio_assets`, `model_runtime_unavailable` | `torch`, `torchaudio`, `transformers` |
| 3 | `mert v1-95m` | `audio_embedding_vector_768` | `unreadable_audio_assets`, `model_runtime_unavailable` | `torch`, `torchaudio`, `transformers` |
| 4 | `muq large-msd-iter` | `audio_embedding_vector_768` | `unreadable_audio_assets`, `model_runtime_unavailable` | `torch`, `torchaudio`, `transformers` |
| 5 | `ecapa acr-baseline-v1` | `audio_embedding_vector_192` | `unreadable_audio_assets`, `model_runtime_unavailable` | `torch`, `torchaudio`, `speechbrain` |
结论:
- 当前 semantic lane 的失败已经具有**稳定矩阵特征**,不是某一个 job 独有的偶发问题
- `vector_table` 路径已全部通过
- 当前真正阻塞 Phase-1 encoder-only 落地的是:
1. `/workspace/downloads` 音频挂载
2. 模型 runtime 依赖安装
## 新增:asset-level embedding upsert live 验证
为了把 `uq_audio_embedding_feature_asset` 从“DDL 声明”推进到“真实证据”,本轮新增:
- `acr-engine/scripts/validate_audio_embedding_asset_upsert_live.py`
- `acr-engine/data/pgvector_eval/music20/audio_embedding_asset_upsert_live_report.json`
### 验证动作
脚本会在隔离 schema `acr_asset_upsert_test` 中:
1. 落最小主数据图:`song -> work -> recording -> asset`
2. 插入第一条 `window_id IS NULL` 的 asset-level embedding
3. 再做一次普通重复 `INSERT`
4. 预期被 `uq_audio_embedding_feature_asset` 拒绝
5. 再做一次 `ON CONFLICT ... DO UPDATE`
6. 验证最终仍只有 `1``audio_embedding``1``audio_embedding_vector_192`
### 当前结果
| 项 | 结果 |
|---|---|
| 首次 `embedding_id` | `1` |
| 重复普通 `INSERT` | `UniqueViolation` |
| 唯一键名 | `uq_audio_embedding_feature_asset` |
| upsert 后 `embedding_id` | `1` |
| `same_embedding_id_reused` | `true` |
| `audio_embedding` 行数 | `1` |
| `audio_embedding_vector_192` 行数 | `1` |
| 最终 `checksum` | `checksum-v2` |
结论:
- asset-level 唯一键不是“纸面存在”,而是已经在 live PostgreSQL 上真实生效
- 后续如果补 asset-level semantic writer,可以直接沿用同一个 `ON CONFLICT (feature_set_id, asset_id) ...` 合同
## 新增:Phase-1 worker contract smoke 总览
为了让下次启动不用分别手工跑 exact worker 与 semantic matrix,本轮新增:
- `acr-engine/scripts/run_phase1_worker_contract_smoke_live.py`
- `acr-engine/data/pgvector_eval/music20/phase1_worker_contract_smoke_report.json`
它会:
1. reset `feature_extraction_job`
2. 跑一次 exact lane 非 dry-run
3. 再 reset jobs
4. 跑完整 semantic preflight matrix
5. 输出一个总览 JSON
### 当前 smoke 总览结果
| lane | 结果 |
|---|---|
| exact | `failed` |
| exact failure reason | `unreadable_audio_assets` |
| exact missing assets | `20` |
| semantic jobs | `4` |
| semantic failed jobs | `4` |
| semantic blockers | `model_runtime_unavailable`, `unreadable_audio_assets` |
这说明:
- 当前 PostgreSQL worker contract 本身已经是**稳定的**
- 当前阻塞已经非常明确,主要不是 orchestration,而是环境:
- `/workspace/downloads` 未挂载
- semantic model runtime 未安装
## 新增:semantic vector table 负例矩阵
为了避免后续把 semantic worker 的失败都误归因为“缺模型/缺音频”,本轮新增:
- `acr-engine/scripts/run_embedding_vector_table_negative_matrix_live.py`
- `acr-engine/data/pgvector_eval/music20/embedding_vector_table_negative_matrix_report.json`
它真实验证了 3 类向量表配置错误:
| case | schema | vector table | reason |
|---|---|---|---|
| `vector_table_dim_mismatch` | `acr_test` | `audio_embedding_vector_192` | `vector_table_dim_mismatch` |
| `vector_table_not_allowlisted` | `acr_test` | `audio_embedding_vector_1024` | `vector_table_not_allowlisted` |
| `vector_table_missing_in_schema` | `acr_vector_table_missing_test` | `audio_embedding_vector_768` | `vector_table_missing_in_schema` |
共同点:
- 3 条 case 全部 `job_status = failed`
- `failure_reason = preflight_failed`
- `preflight_blockers` 中除了环境 blocker,还会额外带上精确的 vector-table blocker
这说明:
- 当前 semantic preflight 已经能够把“运行环境问题”和“配置错误问题”分层暴露
- 后续只要看 `vector_table_report.reason`,就能快速区分是 DDL/配置错误,还是模型 runtime/音频挂载错误
## 新增:Phase-1 prerequisites audit
为了避免每次都靠肉眼猜“到底是音频挂载缺失,还是模型 runtime 缺失”,本轮新增:
- `acr-engine/scripts/run_phase1_prereq_audit_live.py`
- `acr-engine/data/pgvector_eval/music20/phase1_prereq_audit_report.json`
### 当前审计结果
| 指标 | 结果 |
|---|---|
| `downloads_root_exists` | `false` |
| `total_jobs` | `5` |
| `ready_jobs` | `0` |
| `blocked_jobs` | `5` |
| 缺失依赖并集 | `speechbrain`, `torch`, `torchaudio`, `transformers` |
按 job 看:
---
- `chromaprint`:依赖层面可跑,但被 `/workspace/downloads` 缺失阻塞
- `mert / muq`:同时被 `/workspace/downloads` 缺失与 `torch/torchaudio/transformers` 缺失阻塞
- `ecapa`:同时被 `/workspace/downloads` 缺失与 `torch/torchaudio/speechbrain` 缺失阻塞
## 7. 当前最推荐的实现顺序
这使得“当前为什么跑不通”已经可以通过单份 JSON 报告回答,而不必重新手工试跑。
1. 先建 `media_entity`
2. 再建 `audio_object`
3. 再建 `feature_fact`
4. 最后建 `set_membership`
5. 先打通 `song -> asset -> window -> embedding/fingerprint`
6. 再继续补更重的治理能力
......
......@@ -59,7 +59,7 @@ cd /workspace/acr-engine
## 3. 用一句话理解项目
我们在做的是一个面向 **版权保护 / 听歌识曲 / 版本归属** 的音乐 ACR 系统,
目标是从 `100w` 音频、约 `30w` 歌曲中,快速定位正确的 `song_id / work / recording` 归属
目标是从 `100w` 音频、约 `30w` 歌曲中,快速定位正确的 `song_id` 归属;当前阶段暂不把版本/recording 作为必须返回对象
---
......@@ -71,7 +71,12 @@ cd /workspace/acr-engine
- semantic lane challenger:`MuQ`
- historical baseline:`ECAPA`
### 数据主线
### 当前 Phase-1 最小主线
```text
song -> asset -> window
```
### 可演进完整版主线
```text
canonical_song -> work -> recording -> recording_asset -> audio_window
```
......@@ -139,6 +144,7 @@ model_registry -> feature_set_registry -> audio_embedding / audio_fingerprint ->
- [README.md](./README.md)
- [session-handoff.md](./session-handoff.md)
- [postgresql-data-model.md](./postgresql-data-model.md)
- [postgres_db_schema_samples.md](./postgres_db_schema_samples.md)
- [phase1-worker-contract.md](./phase1-worker-contract.md)
### 脚本
......
#!/usr/bin/env /usr/local/miniconda3/bin/python
from __future__ import annotations
import argparse
import fnmatch
import re
import sys
from pathlib import Path
LINK_RE = re.compile(r'!?(?:\[([^\]]*)\])\(([^)]+)\)')
SKIP_PREFIXES = ('http://', 'https://', 'mailto:', 'tel:', '#')
DEFAULT_EXCLUDES = ['CHANGELOG.md']
def should_check(target: str) -> bool:
target = target.strip()
return bool(target) and not target.startswith(SKIP_PREFIXES)
def normalize_target(raw: str) -> str:
target = raw.strip()
if target.startswith('<') and target.endswith('>'):
target = target[1:-1]
target = target.split('#', 1)[0].split('?', 1)[0].strip()
return target
def iter_markdown_files(root: Path, excludes: list[str]) -> list[Path]:
files: list[Path] = []
for path in sorted(root.rglob('*.md')):
rel = path.relative_to(root).as_posix()
if any(fnmatch.fnmatch(rel, pattern) for pattern in excludes):
continue
files.append(path)
return files
def scan_markdown_file(path: Path, root: Path) -> list[tuple[str, str]]:
missing: list[tuple[str, str]] = []
text = path.read_text(encoding='utf-8')
for _, raw_target in LINK_RE.findall(text):
if not should_check(raw_target):
continue
target = normalize_target(raw_target)
if not target:
continue
resolved = (path.parent / target).resolve()
if not resolved.exists():
missing.append((path.relative_to(root).as_posix(), raw_target))
return missing
if __name__ == '__main__':
parser = argparse.ArgumentParser(description='Check relative Markdown links for missing files.')
parser.add_argument('--root', default='docs', help='Root directory containing markdown files')
parser.add_argument('--exclude', action='append', default=[], help='Glob patterns relative to root to exclude')
args = parser.parse_args()
root = Path(args.root).resolve()
if not root.exists():
print(f'root not found: {root}', file=sys.stderr)
sys.exit(2)
excludes = DEFAULT_EXCLUDES + list(args.exclude)
files = iter_markdown_files(root, excludes)
failures: list[tuple[str, str]] = []
for md in files:
failures.extend(scan_markdown_file(md, root))
if failures:
print('Missing relative markdown targets:')
for source, target in failures:
print(f'- {source}: {target}')
sys.exit(1)
print(f'OK: checked {len(files)} markdown files under {root} (excluded: {excludes})')