refactor(platform/api-utils): 更新导入路径从@dify-chat/core到@/types

Author: lexmin0412

packages/platform/lib/api-utils.ts

@@ -1,6 +1,7 @@
-import { IDifyAppItem } from '@dify-chat/core'
 import { NextRequest, NextResponse } from 'next/server'
 
+import { IDifyAppItem } from '@/types'
+
 /**
  * 统一的 API 错误处理
  */