fix(acp): Wait for mcp initialization in acp (#18893) (#18894)

Co-authored-by: Mervap <megavaprold@gmail.com>
Co-authored-by: Shreya Keshive <shreyakeshive@google.com>

packages/core/src/config/config.ts

@@ -974,7 +974,7 @@ export class Config {
       }
     });
 
-    if (!this.interactive) {
+    if (!this.interactive || this.experimentalZedIntegration) {
       await mcpInitialization;
     }