feat(identity): lazy TMDB lookup and bounded identity pool (DEC-1)

RSS/list releases that match no subscription or local work no longer hit
TMDB or open a pending item; they go to the identity pool as `unmatched`.
TMDB is queried only on a local alias hit, a published new-title rule whose
prefilter passes, manual/Agent retry, search results, or when the new
setting identity.eagerTmdbLookup (default off) is on. Mirrors MoviePilot:
torrents are recognised only when matched to a subscription or searched,
and recognition failures are logged, not alerted.

- Pending items only for related releases (ambiguous after lookup, or
  related to a local work but unresolved); same source + normalized title
  merge into one decision ("来源「X」的 N 条资源待识别"), resolve/dismiss
  applies to the whole group, members detach as they get resolved.
- Pool governance: unmatched reviews capped (daily, 3x), title_alias
  insert trigger wakes similar entries, stale unmatched entries archived
  after identity.poolArchiveDays (30); review idempotency keys include the
  due time.
- Migration 0047_identity_pool: reason/outcome `unmatched`,
  identity_candidate.normalized_title (+trgm index), wake trigger, and
  cleanup of open identity_unresolved items with no related work
  (dismissed, resolution=moved_to_pool).
- Inbox: group by type + work/source with collapse, hide info-only items
  by default (minSeverity=warning), badge counts warning+ only; pool sheet
  gets manual TMDB/local-work assign and dismiss; settings card for the
  new identity settings.
- Runbook docs/runbook/identity.md.

Requires rebuild/restart (migration runs on start).

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

apps/server/src/modules/sources-identity/tasks.ts

@@ -36,7 +36,13 @@ export function registerSourcesTasks(registry: TaskRegistry, rt: () => SourcesRu
       name: "resolveObservation",
       version: 1,
       inputSchema: z
-        .object({ observationId: id.nullish(), sourceReleaseId: id.nullish(), force: z.boolean().optional() })
+        .object({
+          observationId: id.nullish(),
+          sourceReleaseId: id.nullish(),
+          force: z.boolean().optional(),
+          // 惰性识别(DEC-1):manual / search 总是查 TMDB;缺省按 force 视为 review / observed
+          trigger: z.enum(["observed", "review", "manual", "search"]).optional(),
+        })
         .refine((v) => !!v.observationId || !!v.sourceReleaseId, { message: "需要 observationId 或 sourceReleaseId" }),
       retryPolicy: NETWORK_RETRY,
       handler: (t) =>
@@ -45,6 +51,7 @@ export function registerSourcesTasks(registry: TaskRegistry, rt: () => SourcesRu
             observationId: t.input.observationId ?? undefined,
             sourceReleaseId: t.input.sourceReleaseId ?? undefined,
             force: t.input.force,
+            trigger: t.input.trigger,
           }),
         ),
     }),