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/tmdb.py

@@ -10,7 +10,6 @@ from app.application.security.access import verify_token
 from app.db.models.user import User
 from app.db.oper.systemconfig import SystemConfigOper
 from app.api.deps import get_current_active_superuser_async
-from app.modules.themoviedb.tmdb_cache import TmdbCache
 from app.schemas.types import MediaType, SystemConfigKey
 
 router = ResponseAPIRouter()
@@ -25,7 +24,7 @@ async def tmdb_recognition_cache(
     _: User = Depends(get_current_active_superuser_async),
 ) -> schemas.Response:
     """查询可管理的 TheMovieDb 识别缓存。"""
-    cache_items = TmdbCache().list_items()
+    cache_items = TmdbChain.cache_items()
     recognized_count = sum(1 for item in cache_items if item["tmdb_id"])
     return schemas.Response(
         success=True,
@@ -52,7 +51,7 @@ async def delete_tmdb_recognition_cache(
     _: User = Depends(get_current_active_superuser_async),
 ) -> schemas.Response:
     """按缓存键删除单条 TheMovieDb 识别缓存。"""
-    deleted_item = TmdbCache().delete(cache_key)
+    deleted_item = TmdbChain.delete_cache(cache_key)
     if not deleted_item:
         return schemas.Response(success=False, message="TheMovieDb 识别缓存不存在")
     return schemas.Response(success=True, message="TheMovieDb 识别缓存删除成功")
@@ -65,7 +64,7 @@ async def clear_tmdb_recognition_cache(
     _: User = Depends(get_current_active_superuser_async),
 ) -> schemas.Response:
     """清空全部 TheMovieDb 识别缓存。"""
-    TmdbCache().clear()
+    TmdbChain.clear_cache()
     return schemas.Response(success=True, message="TheMovieDb 识别缓存清理完成")