feat(identity): 识别接入集数解析——映射规则表、规范季集写回解析结果、待确认不建单元并开待处理、规则失效停用、按作品重算

迁移 0066_episode_mapping。

Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Cxwgnn2pbzQ7rXv3rq7fei

apps/web/app/lib/labels.ts

@@ -41,6 +41,7 @@ export const downloadLabel = (v: string | null | undefined) => pick(DOWNLOAD, v)
 const DECISION_KIND: Record<string, string> = {
   identity_ambiguous: "没识别出作品",
   identity_unresolved: "未识别",
+  episode_mapping: "集数待确认",
   download_stalled: "下载无进展",
   download_failed: "下载失败",
   path_conflict: "整理冲突",