Add ExtensionLoader interface, use that on Config object (#12116)

packages/a2a-server/src/agent/executor.ts

@@ -17,7 +17,10 @@ import type {
   ServerGeminiToolCallRequestEvent,
   Config,
 } from '@google/gemini-cli-core';
-import { GeminiEventType } from '@google/gemini-cli-core';
+import {
+  GeminiEventType,
+  SimpleExtensionLoader,
+} from '@google/gemini-cli-core';
 import { v4 as uuidv4 } from 'uuid';
 
 import { logger } from '../utils/logger.js';
@@ -96,7 +99,11 @@ export class CoderAgentExecutor implements AgentExecutor {
     loadEnvironment(); // Will override any global env with workspace envs
     const settings = loadSettings(workspaceRoot);
     const extensions = loadExtensions(workspaceRoot);
-    return await loadConfig(settings, extensions, taskId);
+    return await loadConfig(
+      settings,
+      new SimpleExtensionLoader(extensions),
+      taskId,
+    );
   }
 
   /**