feat(db,contracts): trash_item migration and file manager contract refinements

- 0024_trash: trash_item table + unique idempotency index on artifact(files_idem)
- files.ts: TrashItemRow, delete planId/planExpiresAt, organize group warnings,
  scrape returns refreshMetadata taskId
- registry tests list the new table/row schema

Co-Authored-By: Claude Opus 5.5 <[email protected]>

packages/contracts/test/schemas.test.ts

@@ -33,6 +33,7 @@ const STRING_CANDIDATES = [
   "catalog.lookup",
   "测试 Test",
   "123456",
+  `lib:${UUID}`,
 ];
 const NUMBER_CANDIDATES = [1, 50, 2024, 0.5, 0, 4096, 128000];
 
@@ -88,6 +89,7 @@ const OVERRIDES: Record<string, (v: Record<string, unknown>) => Record<string, u
   ExternalIdentityCreate: (v) => ({ ...v, contentUnitId: null }),
   PathBindingCreate: (v) => ({ ...v, bindingKind: "season", seasonNumber: 1 }),
   OrganizeRequest: (v) => ({ ...v, sourcePaths: undefined }),
+  FilesListQuery: (v) => ({ ...v, filter: "video,unidentified" }),
   CatalogLookupInput: (v) => v,
   IdentityResolveInput: (v) => v,
   AssetLocationCreate: (v) => v,