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

packages/a2a-server/src/config/config.ts

@@ -21,6 +21,7 @@ import {
   DEFAULT_GEMINI_EMBEDDING_MODEL,
   DEFAULT_GEMINI_MODEL,
   type GeminiCLIExtension,
+  type ExtensionLoader,
   debugLogger,
 } from '@google/gemini-cli-core';
 
@@ -30,10 +31,10 @@ import { type AgentSettings, CoderAgentEvent } from '../types.js';
 
 export async function loadConfig(
   settings: Settings,
-  extensions: GeminiCLIExtension[],
+  extensionLoader: ExtensionLoader,
   taskId: string,
 ): Promise<Config> {
-  const mcpServers = mergeMcpServers(settings, extensions);
+  const mcpServers = mergeMcpServers(settings, extensionLoader.getExtensions());
   const workspaceDir = process.cwd();
   const adcFilePath = process.env['GOOGLE_APPLICATION_CREDENTIALS'];
 
@@ -71,7 +72,7 @@ export async function loadConfig(
     },
     ideMode: false,
     folderTrust: settings.folderTrust === true,
-    extensions,
+    extensionLoader,
   };
 
   const fileService = new FileDiscoveryService(workspaceDir);
@@ -80,7 +81,7 @@ export async function loadConfig(
     [workspaceDir],
     false,
     fileService,
-    extensions,
+    extensionLoader,
     settings.folderTrust === true,
   );
   configParams.userMemory = memoryContent;