fix(cli): resolve double rendering in shpool and address vscode lint warnings (#18704)

packages/core/src/config/config.ts

@@ -905,6 +905,10 @@ export class Config {
     );
   }
 
+  isInitialized(): boolean {
+    return this.initialized;
+  }
+
   /**
    * Must only be called once, throws if called again.
    */