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

packages/core/src/utils/memoryDiscovery.ts

@@ -15,7 +15,7 @@ import { processImports } from './memoryImportProcessor.js';
 import type { FileFilteringOptions } from '../config/constants.js';
 import { DEFAULT_MEMORY_FILE_FILTERING_OPTIONS } from '../config/constants.js';
 import { GEMINI_DIR } from './paths.js';
-import type { GeminiCLIExtension } from '../config/config.js';
+import type { ExtensionLoader } from './extensionLoader.js';
 import { debugLogger } from './debugLogger.js';
 
 // Simple console logger, similar to the one previously in CLI's config.ts
@@ -338,7 +338,7 @@ export async function loadServerHierarchicalMemory(
   includeDirectoriesToReadGemini: readonly string[],
   debugMode: boolean,
   fileService: FileDiscoveryService,
-  extensions: GeminiCLIExtension[],
+  extensionLoader: ExtensionLoader,
   folderTrust: boolean,
   importFormat: 'flat' | 'tree' = 'tree',
   fileFilteringOptions?: FileFilteringOptions,
@@ -365,7 +365,8 @@ export async function loadServerHierarchicalMemory(
 
   // Add extension file paths separately since they may be conditionally enabled.
   filePaths.push(
-    ...extensions
+    ...extensionLoader
+      .getExtensions()
       .filter((ext) => ext.isActive)
       .flatMap((ext) => ext.contextFiles),
   );