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/reasons.ts

@@ -17,6 +17,8 @@ const REASONS: Record<string, ReasonText> = {
   identity_unknown: { text: "没识别出作品", action: "指定作品后重新整理" },
   identity_ambiguous: { text: "没识别出作品", action: "指定作品" },
   identity_unresolved: { text: "没识别出作品", action: "指定作品" },
+  episode_mapping: { text: "集数对不上作品的季集", action: "确认集数映射" },
+  episode_unresolved: { text: "集数对不上作品的季集", action: "确认集数映射" },
   target_exists: { text: "媒体库里已有同名文件", action: "在待处理里选择替换或跳过" },
   duplicate_target: { text: "改名后与其他文件同名", action: "改命名模板或排除其中一个" },
   replace_requires_grant: { text: "替换已有文件需要你批准", action: "在待处理里批准" },