diff --git a/docker-compose.yml b/docker-compose.yml
index acbb3c9..55ccdcb 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -29,8 +29,8 @@ services:
     restart: unless-stopped
 
   postgres:
-    # 阿里云镜像，避免从 Docker Hub 拉取超时
-    image: registry.cn-hangzhou.aliyuncs.com/library/postgres:15-alpine
+    # 轩辕镜像加速，避免 Docker Hub 拉取超时
+    image: docker.m.daocloud.io/library/postgres:15-alpine
     container_name: camtalk-postgres
     environment:
       POSTGRES_USER: camtalk
diff --git a/frontend/src/components/ChatPanel/index.tsx b/frontend/src/components/ChatPanel/index.tsx
index bb30883..41a945c 100644
--- a/frontend/src/components/ChatPanel/index.tsx
+++ b/frontend/src/components/ChatPanel/index.tsx
@@ -17,7 +17,7 @@ interface ChatPanelProps {
   currentScenario?: string;
   isProcessing?: boolean;
   isVADReady?: boolean;
-  vadError?: string;
+  vadError?: string | null;
   isMicOn?: boolean;
   isSpeaking?: boolean;
   onSendText?: (text: string) => void;
diff --git a/frontend/src/lib/errors.ts b/frontend/src/lib/errors.ts
index 03f3b24..54b70d8 100644
--- a/frontend/src/lib/errors.ts
+++ b/frontend/src/lib/errors.ts
@@ -3,8 +3,6 @@
 // 来源：docs/03-接口文档.md §五 错误码
 // ============================================================
 
-// ErrorCode type reserved for future use
-
 /** 将错误码转为用户友好文案（需要传入翻译函数） */
 export function getErrorMessage(code: string, translate: (key: string) => string): string {
   const key = `error.${code}`;