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

packages/adapters/src/meta/index.ts

@@ -44,7 +44,7 @@ export interface MetaRequestCache {
 }
 
 export interface MetaClientOptions {
-  fetch?: typeof globalThis.fetch;
+  fetch?: (input: RequestInfo | URL, init?: RequestInit) => Promise<Response>;
   /** 缺省 15s */
   timeoutMs?: number;
   /** API 地址(bgm api.bgm.tv / 豆瓣 rexxar) */