refactor(core): migrate to Bun and converge acquisition policies and Agent boundaries

apps/server/test/sources-identity/identity-differential.lib.ts

@@ -123,7 +123,9 @@ export function trimTmdb(body: unknown): unknown {
 }
 
 /** 离线回放:按键取录制的响应;没录到的请求直接报错(说明召回逻辑变了,需要重新录制) */
-export function fixtureFetch(fixtures: Record<string, unknown>): typeof fetch {
+export function fixtureFetch(
+  fixtures: Record<string, unknown>,
+): (input: RequestInfo | URL, init?: RequestInit) => Promise<Response> {
   return (async (input: string | URL | Request) => {
     const url = typeof input === "string" ? input : input instanceof URL ? input.href : input.url;
     const key = fixtureKey(url);
@@ -134,10 +136,13 @@ export function fixtureFetch(fixtures: Record<string, unknown>): typeof fetch {
       status,
       headers: { "content-type": "application/json" },
     });
-  }) as typeof fetch;
+  }) as (input: RequestInfo | URL, init?: RequestInit) => Promise<Response>;
 }
 
-export function tmdbFor(fetchImpl: typeof fetch, baseUrl = "http://tmdb.fixture/3"): TmdbClient {
+export function tmdbFor(
+  fetchImpl: (input: RequestInfo | URL, init?: RequestInit) => Promise<Response>,
+  baseUrl = "http://tmdb.fixture/3",
+): TmdbClient {
   return new TmdbClient({ apiKey: "x", baseUrl, fetch: fetchImpl, retries: 0 });
 }