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

packages/contracts/src/agent.ts

@@ -147,6 +147,8 @@ export const DecisionKind = z.enum([
   "other",
   /** 待识别资源没有可选候选(no_match / 复查耗尽的查询失败):手动指定 TMDB id、选本地作品或忽略 */
   "identity_unresolved",
+  /** 资源已绑定作品但集数待确认(无法换算 / 映射规则失效):按作品 + 来源季 + 发布组合并,附建议规则 */
+  "episode_mapping",
 ]);
 export type DecisionKind = z.infer<typeof DecisionKind>;
 export const DecisionStatus = z.enum(["open", "investigating", "awaiting_user", "resolved", "dismissed", "expired"]);