refactor(architecture): 修复模块依赖违规并强化架构守护

- 字幕编排上移 DownloadChain.download_site_subtitles，SubtitleModule 仅保留站点链接解析
- TransferChain.recommend_name 上移 TV episodes_info 获取，filemanager 模块不再导入 TmdbChain
- endpoint 穿透修复：WXBizMsgCrypt3 迁至 adapters/external/wechat_crypt.py；
  music/tmdb 缓存管理、listenbrainz 常量、TMDbException、WechatClawBot 辅助统一经 chain 包装
- RuleParser 与 builtin_rules 合并为 application/filter_rules.py；
  fsproxy/fsworker 迁至 adapters/system/
- chain/__init__.py 删除 qbittorrentapi/transmission_rpc 导入，消除后端协议类型泄漏
- 架构守护测试新增三项检查：模块间隔离、入口层穿透、下载器 SDK 泄漏
- 文档同步：05-architecture.md 记录 DB/Oper 聚合例外与迁移文件位置，AGENTS.md 更新所有权表

app/api/endpoints/music.py

@@ -11,12 +11,12 @@ from app.domain.context import MusicAlbumInfo, MusicArtistInfo, MusicInfo
 from app.application.security.access import verify_token
 from app.db.models.user import User
 from app.api.deps import get_current_active_superuser_async
-from app.modules.listenbrainz import (
+from app.chain.listenbrainz import (
     LISTENBRAINZ_CHART_RANGES,
     LISTENBRAINZ_FRESH_MAX_DAYS,
     LISTENBRAINZ_FRESH_SORTS,
 )
-from app.modules.musicbrainz.music_cache import MusicBrainzCache
+from app.chain.musicbrainz import MusicBrainzChain
 
 router = ResponseAPIRouter()
 
@@ -111,7 +111,7 @@ async def music_recognition_cache(
     _: User = Depends(get_current_active_superuser_async),
 ) -> schemas.Response:
     """查询可管理的 MusicBrainz 识别缓存。"""
-    cache_items = MusicBrainzCache().list_items()
+    cache_items = MusicBrainzChain.cache_items()
     recognized_count = sum(1 for item in cache_items if item["media_id"])
     return schemas.Response(
         success=True,
@@ -134,7 +134,7 @@ async def delete_music_recognition_cache(
     _: User = Depends(get_current_active_superuser_async),
 ) -> schemas.Response:
     """按缓存键删除单条 MusicBrainz 识别缓存。"""
-    deleted_item = MusicBrainzCache().delete(cache_key)
+    deleted_item = MusicBrainzChain.delete_cache(cache_key)
     if not deleted_item:
         return schemas.Response(success=False, message="音乐识别缓存不存在")
     return schemas.Response(success=True, message="音乐识别缓存删除成功")
@@ -147,7 +147,7 @@ async def clear_music_recognition_cache(
     _: User = Depends(get_current_active_superuser_async),
 ) -> schemas.Response:
     """清空全部 MusicBrainz 识别缓存。"""
-    MusicBrainzCache().clear()
+    MusicBrainzChain.clear_cache()
     return schemas.Response(success=True, message="音乐识别缓存清理完成")