feat(identity): web metadata enrichment for titles missing on TMDB (META-1)

- metadata.enrich (propose, low, replay safe): normalized-title cache (kv_cache
  region enrich, 7 days) -> daily budget -> web.search (title + 短剧 / 电视剧 平台,
  second query limited to whitelist via site:) -> web.fetch of up to 3 relevant
  whitelisted pages (registered site domains never read, redirects out of the
  whitelist dropped) -> upstream model extraction with rule fallback -> server-side
  evidence check (rule_confirmed / multi_evidence / needs_review). Suggestion only.
- POST /identity-pool/{id}/enrich (suggest) and /enrich/apply (console session):
  provisional entity or same-title merge, season/episode units, field-level
  metadata with source web/agent + evidence, aliases, release assignment.
  Poster proxy GET /img/enrich/{id} (og:image from whitelisted pages only).
- Auto-enrich once per pool entry when subscription/rule lookups find nothing on
  TMDB (identity.autoEnrich, off by default); identity.enrichDailyBudget,
  identity.enrichDomains settings; web.fetch now returns og:image.
- Pool sheet "元数据补全" section; entity detail shows evidence links.
- Migration 0049_enrichment (metadata_enrichment, metadata_field.evidence, source
  web). Requires image rebuild / api + worker restart to take effect.

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

apps/web/app/api/identity.ts

@@ -1,12 +1,16 @@
 import { keepPreviousData, useInfiniteQuery, useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
 import {
   cursorPage,
+  type EnrichApplyInput,
+  EnrichApplyResult,
+  type EnrichRequest,
   ExternalIdentity,
   type IdentityCandidateReason,
   type IdentityCandidateStatus,
   IdentityPoolItem,
   IdentityRevisionList,
   type IdentityStatus,
+  MetadataEnrichOutput,
   type ReleaseIdentityAssign,
   ReleaseIdentityResult,
   TaskAccepted,
@@ -154,3 +158,28 @@ export function useDeleteAlias() {
     onSuccess: done,
   });
 }
+
+/** 元数据补全建议(metadata.enrich;不改作品,同一标题 7 天内返回上次结果) */
+export function useEnrichPool() {
+  return useMutation({
+    mutationFn: ({ id, ...body }: EnrichRequest & { id: string }) =>
+      api
+        .post<unknown>(`/identity-pool/${id}/enrich`, body)
+        .then((d) => parseOrThrow(MetadataEnrichOutput, d, "/identity-pool/enrich")),
+  });
+}
+
+/** 应用补全建议:建本地临时作品(或并入同名作品)并关联待识别资源 */
+export function useApplyEnrich() {
+  const done = useInvalidate();
+  return useMutation({
+    mutationFn: ({ id, ...body }: Partial<EnrichApplyInput> & { id: string; enrichmentId: string }) =>
+      api
+        .post<unknown>(`/identity-pool/${id}/enrich/apply`, body)
+        .then((d) => parseOrThrow(EnrichApplyResult, d, "/identity-pool/enrich/apply")),
+    onSuccess: done,
+  });
+}
+
+/** 补全海报经服务端代理(只取该补全记录里白名单网页给出的图片) */
+export const enrichPosterUrl = (enrichmentId: string) => `/api/v1/img/enrich/${enrichmentId}`;