fix(sites): integrate shared download access and register synced adapters

apps/server/vitest.config.ts

@@ -23,6 +23,7 @@ const UNIT = [
   "test/mapping-compat.test.ts",
   "test/modules.test.ts",
   "test/sse.test.ts",
+  "test/site-fetch-credentials.test.ts",
   "test/static.test.ts",
   "test/system-resources.test.ts",
 ];