perf(server): parallel media-server inventory, queued identify remote lookups, dev DB cleanup

- GET /inventory/media-servers: per-instance Promise.allSettled, per-instance
  concurrency cap (2) and timeout (8s); failed/timed-out instances are unknown,
  response carries partial=true (field not yet in contracts)
- S-7: POST /files/identify returns local matches plus remoteTaskId/remotePending
  and enqueues identifyRemote; the worker runs the TMDB lookups and publishes SSE
  identify.completed {taskId,status,items,truncated,excludedBySize,error};
  ?wait=true keeps the synchronous path, capped at 15s overall
- catalog.lookup / release.search honour the caller's abort signal
- scripts/dev-db-clean.ts: dry-run by default, --yes to drop leftover test
  schemas and w32-/w33-/fe4-/qa- prefixed entities; refuses non localhost:55433
- runbook: dev DB cleanup

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

apps/server/src/modules/acquisition-organize/__tests__/vertical.test.ts

@@ -463,7 +463,7 @@ describe.skipIf(!hasPg)("acquisition-organize 纵切(真实 PG + mock qB + 临
     const inv = await h.api("GET", `/inventory?entityIds=${movieId}`);
     expect(inv.body.data.items[0].versions[0]).toMatchObject({ resolution: "1080p", available: true });
     const ms = await h.api("GET", `/inventory/media-servers?mediaEntityId=${movieId}`);
-    expect(ms.body.data).toEqual({ mediaEntityId: movieId, instances: [] });
+    expect(ms.body.data).toEqual({ mediaEntityId: movieId, instances: [], partial: false });
   });
 
   it("自动整理被拦(attention)后手动整理成功:Slot 经 verifying 落 satisfied,整理事项自动关闭(QA U1)", async () => {

apps/server/src/modules/acquisition-organize/routes/library.ts

@@ -33,6 +33,85 @@ import { mount, paginate } from "./helpers.ts";
 const TAG = "library";
 const ACTIVE_DL = ["queued", "submitting", "downloading", "stalled", "paused", "completed", "importing"] as const;
 
+/** Emby 库存查询:每实例内部并发上限与整实例超时(毫秒) */
+export const MEDIA_SERVER_LIMITS = { perInstanceConcurrency: 2, timeoutMs: 8_000 };
+
+const MS_PROVIDER_KEY: Record<string, string> = { tmdb: "Tmdb", imdb: "Imdb", tvdb: "Tvdb", douban: "Douban" };
+
+type MsInstance = MediaServerInventory["instances"][number];
+type MsInstanceRow = Parameters<AoDeps["ports"]["mediaServer"]>[0];
+
+const errText = (e: unknown) => (e instanceof Error ? e.message : String(e));
+
+/**
+ * 查单个实例:外部 ID 逐个 findByProviderId(实例内并发 ≤ perInstanceConcurrency),整实例超过 timeoutMs 记 unknown。
+ * 超时后底层请求由 Emby 客户端自身超时收尾,结果丢弃。
+ */
+export async function queryMediaServer(
+  d: AoDeps,
+  inst: MsInstanceRow,
+  usable: { provider: string; external_id: string }[],
+  type: "Movie" | "Series",
+  limits: { perInstanceConcurrency: number; timeoutMs: number },
+): Promise<MsInstance> {
+  const observedAt = new Date().toISOString();
+  const base = { instanceId: inst.id, name: inst.name, observedAt };
+  if (usable.length === 0) return { ...base, status: "unknown", reason: "no_external_id", items: [] };
+  let timer: ReturnType<typeof setTimeout> | undefined;
+  const timeout = new Promise<never>((_, reject) => {
+    timer = setTimeout(
+      () => reject(new Error(`timeout: 媒体服务器 ${limits.timeoutMs / 1000}s 内未响应`)),
+      limits.timeoutMs,
+    );
+  });
+  const work = (async () => {
+    const client = await d.ports.mediaServer(inst);
+    const results: Awaited<ReturnType<typeof client.findByProviderId>>[] = new Array(usable.length);
+    let next = 0;
+    const lane = async () => {
+      while (next < usable.length) {
+        const k = next++;
+        const i = usable[k]!;
+        results[k] = await client.findByProviderId(MS_PROVIDER_KEY[i.provider]!, i.external_id, type);
+      }
+    };
+    await Promise.all(Array.from({ length: Math.min(limits.perInstanceConcurrency, usable.length) }, lane));
+    return results;
+  })();
+  work.catch(() => {});
+  try {
+    const results = await Promise.race([work, timeout]);
+    let status: MsInstance["status"] = "not_found";
+    let reason: string | null = null;
+    const items: MsInstance["items"] = [];
+    for (const r of results) {
+      if (r.status === "present") {
+        status = "present";
+        reason = null;
+        for (const it of r.items) {
+          if (items.some((x) => x.itemId === it.itemId)) continue;
+          items.push({
+            itemId: it.itemId,
+            type: it.type,
+            name: it.name,
+            year: it.year ?? null,
+            path: it.path ?? null,
+            versions: it.versions.map((v) => JSON.parse(JSON.stringify(v)) as Record<string, unknown>),
+          });
+        }
+      } else if (r.status === "unknown" && status !== "present") {
+        status = "unknown";
+        reason = r.reason;
+      }
+    }
+    return { ...base, status, reason, items };
+  } catch (err) {
+    return { ...base, status: "unknown", reason: errText(err), items: [] };
+  } finally {
+    clearTimeout(timer);
+  }
+}
+
 const emptyCounts = (): SlotStatusCounts => ({
   empty: 0,
   reserved: 0,
@@ -414,54 +493,26 @@ export function registerLibraryRoutes(app: ModuleApp, d: AoDeps) {
         .orderBy("name")
         .execute();
       const type = e!.kind === "movie" ? "Movie" : "Series";
-      const KEY: Record<string, string> = { tmdb: "Tmdb", imdb: "Imdb", tvdb: "Tvdb", douban: "Douban" };
-      const out: MediaServerInventory = { mediaEntityId: e!.id, instances: [] };
-      for (const inst of insts) {
-        const observedAt = new Date().toISOString();
-        const usable = idents.filter((i) => KEY[i.provider]);
-        if (usable.length === 0) {
-          out.instances.push({
-            instanceId: inst.id,
-            name: inst.name,
-            status: "unknown",
-            reason: "no_external_id",
-            items: [],
-            observedAt,
-          });
-          continue;
-        }
-        let status: "present" | "not_found" | "unknown" = "not_found";
-        let reason: string | null = null;
-        const items: MediaServerInventory["instances"][number]["items"] = [];
-        try {
-          const client = await d.ports.mediaServer(inst);
-          for (const i of usable) {
-            const r = await client.findByProviderId(KEY[i.provider]!, i.external_id, type);
-            if (r.status === "present") {
-              status = "present";
-              for (const it of r.items) {
-                if (items.some((x) => x.itemId === it.itemId)) continue;
-                items.push({
-                  itemId: it.itemId,
-                  type: it.type,
-                  name: it.name,
-                  year: it.year ?? null,
-                  path: it.path ?? null,
-                  versions: it.versions.map((v) => JSON.parse(JSON.stringify(v)) as Record<string, unknown>),
-                });
-              }
-            } else if (r.status === "unknown" && status !== "present") {
-              status = "unknown";
-              reason = r.reason;
-            }
-          }
-        } catch (err) {
-          status = "unknown";
-          reason = (err as Error).message;
-        }
-        out.instances.push({ instanceId: inst.id, name: inst.name, status, reason, items, observedAt });
-      }
-      return out;
+      const usable = idents.filter((i) => MS_PROVIDER_KEY[i.provider]);
+      // 按实例并行(allSettled):单个 Emby 慢/挂只让自己 unknown,不拖住其它实例;每实例内部限并发 + 总超时
+      const settled = await Promise.allSettled(
+        insts.map((inst) => queryMediaServer(d, inst, usable, type, MEDIA_SERVER_LIMITS)),
+      );
+      const instances = settled.map((r, i) =>
+        r.status === "fulfilled"
+          ? r.value
+          : {
+              instanceId: insts[i]!.id,
+              name: insts[i]!.name,
+              status: "unknown" as const,
+              reason: errText(r.reason),
+              items: [],
+              observedAt: new Date().toISOString(),
+            },
+      );
+      // partial:至少一个实例因查询失败/超时为 unknown(no_external_id 不算失败)。契约未列此字段,前端可按需读取
+      const partial = instances.some((x) => x.status === "unknown" && x.reason !== "no_external_id");
+      return { mediaEntityId: e!.id, instances, partial } as MediaServerInventory;
     },
     { tag: TAG },
   );

apps/server/src/modules/file-manager/identify.ts

@@ -18,6 +18,43 @@ import { kindOfName } from "./list.ts";
 
 // 识别(只读,不落库):parseReleasePath(文件 + 父/祖父目录上下文)→ 本地召回(别名 pg_trgm + 外部身份)
 // → 远端候选(catalog.lookup 能力,走 TMDB 缓存;失败只降级为提示)→ rankCandidates,每项前 5。
+//
+// S-7(C1-D):HTTP 请求内默认只做本地召回;需要远端查询时入队持久任务 identifyRemote,响应带 remoteTaskId(= 引擎 runId)。
+// 任务在 worker 里跑完整识别(本地 + 远端),完成后发 SSE `identify.completed`(见 IdentifyCompletedPayload)。
+// `?wait=true` 保留同步模式:请求内查远端,整体上限 IDENTIFY_WAIT_MAX_MS。
+
+/** 远端结果推送事件(尚未进 contracts EventType;前端按 taskId 匹配) */
+export const IDENTIFY_COMPLETED_EVENT = "identify.completed";
+/** 持久任务名 */
+export const IDENTIFY_REMOTE_TASK = "identifyRemote";
+/** 同步模式(wait=true)整个请求的远端查询上限 */
+export const IDENTIFY_WAIT_MAX_MS = 15_000;
+
+export interface IdentifyCompletedPayload {
+  taskId: string;
+  status: "succeeded" | "failed";
+  /** 完整识别结果(本地 + 远端),按 root + path 替换 HTTP 响应里的同名项 */
+  items: FileIdentifyItem[];
+  truncated: boolean;
+  excludedBySize: number;
+  error: string | null;
+}
+
+/** HTTP 响应 = 契约 FilesIdentifyResult + 两个待入契约的字段 */
+export type FilesIdentifyResponse = FilesIdentifyResult & {
+  /** 远端查询任务 id(引擎 runId);null = 无需远端或同步模式已查完 */
+  remoteTaskId: string | null;
+  /** 待远端查询的去重标题数(0 = 无) */
+  remotePending: number;
+};
+
+interface CoreOpts {
+  /** local:只本地召回,统计待查远端数;remote:本地 + 远端 */
+  mode: "local" | "remote";
+  actorId: string;
+  /** remote 模式整体截止(同步 wait 或任务取消) */
+  signal?: AbortSignal;
+}
 
 /** 单次 /files/identify 请求内去重后的远端(TMDB)查询上限 */
 export const REMOTE_QUERY_MAX = 20;
@@ -79,12 +116,80 @@ function segments(rel: string) {
   return { file, ...(parent ? { parent } : {}), ...(grandParent ? { grandParent } : {}) };
 }
 
+/**
+ * /files/identify 处理:wait=false(缺省)本地召回 + 入队远端任务;wait=true 请求内查远端(≤15s)。
+ */
 export async function identify(
   d: FmDeps,
   principal: Principal | undefined,
   body: FilesIdentifyRequest,
-): Promise<FilesIdentifyResult> {
+  opts: { wait?: boolean } = {},
+): Promise<FilesIdentifyResponse> {
+  const actorId = actorOfP(principal);
+  if (opts.wait) {
+    const r = await identifyCore(d, body, {
+      mode: "remote",
+      actorId,
+      signal: AbortSignal.timeout(IDENTIFY_WAIT_MAX_MS),
+    });
+    return { ...r.result, remoteTaskId: null, remotePending: 0 };
+  }
+  const r = await identifyCore(d, body, { mode: "local", actorId });
+  if (r.remotePending === 0) return { ...r.result, remoteTaskId: null, remotePending: 0 };
+  let taskId: string;
+  try {
+    ({ runId: taskId } = await d.ctx.engine.enqueue(
+      IDENTIFY_REMOTE_TASK,
+      { body, actorId },
+      { idempotencyKey: `files.identify:${randomUUID()}`, traceId: randomUUID() },
+    ));
+  } catch (e) {
+    for (const it of r.result.items)
+      if (r.pendingPaths.has(`${it.root}\u0000${it.path}`))
+        it.warnings.push(`远端查询入队失败,只查了本地:${errMessage(e).slice(0, 200)}`);
+    return { ...r.result, remoteTaskId: null, remotePending: 0 };
+  }
+  for (const it of r.result.items)
+    if (r.pendingPaths.has(`${it.root}\u0000${it.path}`)) it.warnings.push("远端候选在后台查询,查完自动补上");
+  return { ...r.result, remoteTaskId: taskId, remotePending: r.remotePending };
+}
+
+/** 持久任务 identifyRemote 的处理体:完整识别后发 identify.completed(失败也发,status=failed) */
+export async function runIdentifyRemote(
+  d: FmDeps,
+  taskId: string,
+  input: { body: FilesIdentifyRequest; actorId: string },
+  signal?: AbortSignal,
+): Promise<IdentifyCompletedPayload> {
+  let payload: IdentifyCompletedPayload;
+  try {
+    const r = await identifyCore(d, input.body, {
+      mode: "remote",
+      actorId: input.actorId,
+      ...(signal ? { signal } : {}),
+    });
+    payload = {
+      taskId,
+      status: "succeeded",
+      items: r.result.items,
+      truncated: r.result.truncated,
+      excludedBySize: r.result.excludedBySize ?? 0,
+      error: null,
+    };
+  } catch (e) {
+    payload = { taskId, status: "failed", items: [], truncated: false, excludedBySize: 0, error: errMessage(e) };
+  }
+  await d.ctx.events.publish(IDENTIFY_COMPLETED_EVENT, payload);
+  return payload;
+}
+
+async function identifyCore(
+  d: FmDeps,
+  body: FilesIdentifyRequest,
+  opts: CoreOpts,
+): Promise<{ result: FilesIdentifyResult; remotePending: number; pendingPaths: Set<string> }> {
   const db = d.ctx.db;
+  const pendingPaths = new Set<string>();
   const { videos, truncated } = await collectVideos(d, body);
   // G2:最小体积(请求/向导 > settings.organize.minSizeBytes,缺省 50 MiB;设置读不到时不过滤)
   const orgSettings = (await d.ctx.settings.get("organize").catch(() => null)) as { minSizeBytes?: unknown } | null;
@@ -102,8 +207,10 @@ export async function identify(
     : { rows: [] };
   const recordsBy = new Map(recordRows.rows.map((r) => [r.source_path, r]));
   const localCache = new Map<string, IdentityCandidate[]>();
-  const remoteCache = new Map<string, { list: IdentityCandidate[]; warning: string | null }>();
+  const remoteCache = new Map<string, { list: IdentityCandidate[]; warning: string | null; pending?: boolean }>();
   const entityKinds = new Map<string, string>();
+  // G8:候选海报(TMDB poster_path;本地作品取投影后的 metadata.posterPath)
+  const posters = new Map<string, string>();
 
   const localFor = async (p: ParsedRelease): Promise<IdentityCandidate[]> => {
     const key = `${queryTitles(p).join("|")}|${body.hints?.tmdbId ?? ""}`;
@@ -148,6 +255,8 @@ export async function identify(
         .execute();
       for (const e of ents) {
         entityKinds.set(e.id, e.kind);
+        const pp = (e.metadata as { posterPath?: unknown } | null)?.posterPath;
+        if (typeof pp === "string" && pp) posters.set(`local:${e.id}`, pp);
         const c = localIdentityCandidate(
           { id: e.id, kind: e.kind, title: e.title, originalTitle: e.original_title, year: e.year },
           aliases.filter((a) => a.media_entity_id === e.id).map((a) => a.alias),
@@ -163,13 +272,15 @@ export async function identify(
   };
 
   let remoteQueries = 0;
-  const remoteFor = async (p: ParsedRelease) => {
+  const remoteFor = async (
+    p: ParsedRelease,
+  ): Promise<{ list: IdentityCandidate[]; warning: string | null; pending?: boolean }> => {
     const q = p.titleCn ?? p.title ?? p.titleEn;
     if (!q) return { list: [], warning: null };
     const key = `${q}|${body.hints?.year ?? p.year ?? ""}`;
     const hit = remoteCache.get(key);
     if (hit) return hit;
-    let res: { list: IdentityCandidate[]; warning: string | null };
+    let res: { list: IdentityCandidate[]; warning: string | null; pending?: boolean };
     // 单次请求内去重后的远端查询设上限,超出的项只做本地召回(验收 07 S-6)
     if (remoteQueries >= REMOTE_QUERY_MAX) {
       res = {
@@ -180,6 +291,17 @@ export async function identify(
       return res;
     }
     remoteQueries += 1;
+    if (opts.mode === "local") {
+      // 只登记待查,由 identifyRemote 任务查;同键的后续项命中缓存,也标为待查
+      res = { list: [], warning: null, pending: true };
+      remoteCache.set(key, res);
+      return res;
+    }
+    if (opts.signal?.aborted) {
+      res = { list: [], warning: `远端查询超时(${IDENTIFY_WAIT_MAX_MS / 1000}s),此项只查了本地` };
+      remoteCache.set(key, res);
+      return res;
+    }
     try {
       const input = {
         query: q,
@@ -188,17 +310,25 @@ export async function identify(
         ...(body.hints?.year ? { year: body.hints.year } : {}),
       };
       // 经进程共享的 TMDB 信号量(并发 4)+ 15s 超时,与能力调用端点同一个限流器
-      const out = (await sharedInvokeLimiter().run("catalog.lookup", input, undefined, (signal) =>
+      const out = (await sharedInvokeLimiter().run("catalog.lookup", input, opts.signal, (signal) =>
         d.ctx.capabilities.invoke("catalog.lookup", input, {
-          actorId: actorOfP(principal),
+          actorId: opts.actorId,
           taskId: `files.identify:${randomUUID()}`,
           scopeIds: [],
           signal: signal ?? AbortSignal.timeout(EXTERNAL_INVOKE_TIMEOUT_MS),
           source: "web",
         }),
       )) as {
-        remote?: { provider: string; entityType: string; externalId: string; title: string; year: number | null }[];
+        remote?: {
+          provider: string;
+          entityType: string;
+          externalId: string;
+          title: string;
+          year: number | null;
+          posterPath?: string | null;
+        }[];
       };
+      for (const m of out.remote ?? []) if (m.posterPath) posters.set(`${m.provider}:${m.externalId}`, m.posterPath);
       const list: IdentityCandidate[] = (out.remote ?? [])
         .filter((m) => m.entityType === "movie" || m.entityType === "tv")
         .map((m) => ({
@@ -254,6 +384,7 @@ export async function identify(
     const local = parsed.title || parsed.explicitIds.length || body.hints?.tmdbId ? await localFor(parsed) : [];
     const remote = parsed.title ? await remoteFor(parsed) : { list: [], warning: null };
     if (remote.warning) warnings.push(remote.warning);
+    if (remote.pending) pendingPaths.add(`${v.root}\u0000${v.rel}`);
     if (!parsed.title) warnings.push("文件名无法解析出标题");
     // 已关联到本地作品的远端候选不重复出现
     const linked = new Set(local.flatMap((c) => (c.linkedExternalIds ?? []).map((l) => `${l.provider}:${l.id}`)));
@@ -276,6 +407,12 @@ export async function identify(
         level: LEVEL[r.level] ?? "low",
         score: 5 - i,
         reasons: r.evidence,
+        posterUrl: posterUrlOf(
+          c.localEntityId
+            ? (posters.get(`local:${c.localEntityId}`) ??
+                c.linkedExternalIds?.map((l) => posters.get(`${l.provider}:${l.id}`)).find(Boolean))
+            : posters.get(`${c.provider}:${c.externalId}`),
+        ),
       };
     });
     const best = candidates[0];
@@ -321,7 +458,14 @@ export async function identify(
   }
   if (videos.length === 0 && body.items.length > 0 && !truncated)
     throw new FilesError("bad_request", "所选项中没有视频文件");
-  return { items, truncated, excludedBySize };
+  return { result: { items, truncated, excludedBySize }, remotePending: remoteQueries, pendingPaths };
+}
+
+/** TMDB 图片 CDN 缩略图(w154);已是完整 URL 的原样返回 */
+export function posterUrlOf(path: string | null | undefined): string | null {
+  if (!path) return null;
+  if (/^https?:\/\//.test(path)) return path;
+  return `https://image.tmdb.org/t/p/w154${path.startsWith("/") ? path : `/${path}`}`;
 }
 
 function parsedOut(parsed: ParsedRelease): FileIdentifyItem["parsed"] {

apps/server/src/modules/file-manager/index.ts

@@ -1,5 +1,6 @@
 import { randomUUID } from "node:crypto";
 import type { TmdbClient } from "@umt/adapters";
+import { FilesIdentifyRequest } from "@umt/contracts";
 import { defineTask } from "@umt/tasks";
 import { z } from "zod";
 import type { AoOverrides } from "../acquisition-organize/index.ts";
@@ -8,6 +9,7 @@ import { registerScheduledJob } from "../schedules/registry.ts";
 import { SourcesRuntime } from "../sources-identity/runtime.ts";
 import type { ServerContext, ServerModule } from "../types.ts";
 import { defaultOptions, type FmDeps, type FmOptions } from "./common.ts";
+import { IDENTIFY_REMOTE_TASK, runIdentifyRemote } from "./identify.ts";
 import { registerFileRoutes } from "./routes.ts";
 import { purgeTrash } from "./trash.ts";
 
@@ -64,6 +66,18 @@ export function createFileManagerModule(overrides: FmOverrides = {}): ServerModu
               return { purged: r.purged.length, failed: r.failed.length };
             }),
         }),
+        // S-7:/files/identify 的远端(TMDB)查询;只读,失败发 status=failed 的 identify.completed,不重试
+        defineTask({
+          name: IDENTIFY_REMOTE_TASK,
+          version: 1,
+          inputSchema: z.object({ body: FilesIdentifyRequest, actorId: z.string() }),
+          retryPolicy: { maximumAttempts: 1 },
+          handler: async (t) =>
+            t.step.run("identify", async () => {
+              const r = await runIdentifyRemote(lazy(ctx), t.runId, t.input, t.abortSignal);
+              return { status: r.status, items: r.items.length };
+            }),
+        }),
       );
     },
     start(ctx) {

apps/server/src/modules/file-manager/routes.ts

@@ -105,7 +105,10 @@ export function registerFileRoutes(app: ModuleApp, d: FmDeps) {
   mount(app, F.trashPurge, async (c, { body }) =>
     idem(d, c, "trash_purge", body, () => purgeTrash(d, c.get("principal"), body)),
   );
-  mount(app, F.identify, async (c, { body }) => identify(d, c.get("principal"), body));
+  // S-7:缺省只回本地命中 + remoteTaskId(远端结果经 SSE identify.completed 推送);?wait=true 请求内查远端,≤15s
+  mount(app, F.identify, async (c, { body }) =>
+    identify(d, c.get("principal"), body, { wait: /^(1|true)$/i.test(c.req.query("wait") ?? "") }),
+  );
   mount(app, F.scrape, async (c, { body }) => idem(d, c, "scrape", body, () => scrape(d, c.get("principal"), body)));
   mount(app, F.probe, async (_c, { body }) => probeFiles(d, body));
   mount(app, F.records, async (_c, { query }) => findRecords(d, query));

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

@@ -16,7 +16,7 @@ import { liveSearch } from "./service/workbench.ts";
 
 export function registerSourcesCapabilities(registry: CapabilityRegistry, rt: () => SourcesRuntime): void {
   registerSiteCapabilities(registry, rt);
-  registry.register(capabilitySpec("catalog.lookup"), async (input) => {
+  registry.register(capabilitySpec("catalog.lookup"), async (input, ctx) => {
     const { db } = rt().ctx;
     const local: { entity: unknown; score: number; matchedAlias: string | null }[] = [];
     if (input.externalId) {
@@ -57,10 +57,9 @@ export function registerSourcesCapabilities(registry: CapabilityRegistry, rt: ()
     }[] = [];
     const tmdb = await rt().tmdb();
     if (input.includeRemote && input.query && tmdb) {
-      for (const m of (await tmdb.searchAll(input.query, input.year ? { year: input.year } : {})).slice(
-        0,
-        input.limit,
-      )) {
+      // 认调用方的 signal(HTTP 15s 超时 / 任务取消):中止后立即返回,不再等 TMDB(底层请求由客户端自身超时收尾)
+      const found = await abortable(tmdb.searchAll(input.query, input.year ? { year: input.year } : {}), ctx.signal);
+      for (const m of found.slice(0, input.limit)) {
         remote.push({
           provider: "tmdb",
           entityType: m.entityType,
@@ -73,7 +72,7 @@ export function registerSourcesCapabilities(registry: CapabilityRegistry, rt: ()
     return { local: local as never, remote };
   });
 
-  registry.register(capabilitySpec("release.search"), async (input) => {
+  registry.register(capabilitySpec("release.search"), async (input, ctx) => {
     const r = rt();
     const { db } = r.ctx;
     let q = db.selectFrom("source_release").selectAll();
@@ -93,7 +92,10 @@ export function registerSourcesCapabilities(registry: CapabilityRegistry, rt: ()
     const coverage: { siteId: string; fromSnapshot: boolean; live: boolean; error: string | null }[] = [];
     const needLive = input.allowLiveSearch && !!text && rows.length === 0;
     for (const s of sites) {
-      if (needLive) {
+      if (needLive && ctx.signal.aborted) {
+        // 已超时/取消:剩余站点不再实时补查
+        coverage.push({ siteId: s.id, fromSnapshot: true, live: false, error: "aborted" });
+      } else if (needLive) {
         const res = await liveSearch(r, s, text!);
         coverage.push({ siteId: s.id, fromSnapshot: false, live: res.error === null, error: res.error });
       } else coverage.push({ siteId: s.id, fromSnapshot: true, live: false, error: null });
@@ -188,3 +190,15 @@ async function identities(r: SourcesRuntime, entityId: string) {
     .execute();
   return toApiList(rows) as never[];
 }
+
+/** 调用方 signal 中止时立即 reject(原 Promise 结果丢弃) */
+function abortable<T>(p: Promise<T>, signal: AbortSignal | undefined): Promise<T> {
+  if (!signal) return p;
+  if (signal.aborted) return Promise.reject(signal.reason);
+  p.catch(() => {});
+  return new Promise<T>((resolve, reject) => {
+    const onAbort = () => reject(signal.reason);
+    signal.addEventListener("abort", onAbort, { once: true });
+    p.then(resolve, reject).finally(() => signal.removeEventListener("abort", onAbort));
+  });
+}