feat: move debug overlay to MobileLayout (全局持久显示)

frontend/src/app/components/MobileLayout.tsx

@@ -1,14 +1,27 @@
 import { Outlet } from "react-router";
+import { useUser } from "../context/UserContext";
 
 /**
  * H5 移动端全局布局容器
- * - max-w-md (448px) 限制最大宽度，大屏居中显示
- * - min-h-dvh 使用动态视口高度，解决 Safari 地址栏问题
- * - safe-area padding 适配刘海屏/底部手势条
  */
 export function MobileLayout() {
+  const { debugInfo, clearDebug } = useUser();
+
   return (
     <div className="max-w-md mx-auto min-h-dvh relative bg-morandi-50 shadow-[0_0_40px_rgba(0,0,0,0.06)]">
+      {/* 全局调试浮层：所有页面下可见 */}
+      {debugInfo.length > 0 && (
+        <div
+          className="absolute top-0 left-0 right-0 z-50 bg-black/80 text-green-400 text-xs p-3 overflow-auto max-h-[50%] cursor-pointer font-mono"
+          style={{ whiteSpace: 'pre-wrap', wordBreak: 'break-all', lineHeight: 1.5 }}
+          onClick={() => clearDebug()}
+        >
+          <div style={{ borderBottom: '1px solid #0f0', paddingBottom: 4, marginBottom: 4, fontWeight: 'bold', fontSize: 14 }}>H5应用调试</div>
+          {debugInfo.map((msg, i) => (
+            <div key={i}>{msg}</div>
+          ))}
+        </div>
+      )}
       <Outlet />
     </div>
   );

frontend/src/app/context/UserContext.tsx

@@ -187,6 +187,9 @@ interface UserContextValue {
   setToken: (token: string) => void;
   setTokenAndUser: (token: string, info: BasicUserInfo) => void;
   fetchProfile: () => Promise<UserProfileDTO | null>;
+  debugInfo: string[];
+  addDebug: (msg: string) => void;
+  clearDebug: () => void;
   logout: () => void;
 }
 
@@ -195,6 +198,14 @@ const UserContext = createContext<UserContextValue | null>(null);
 export function UserProvider({ children }: { children: ReactNode }) {
   const [user, setUser] = useState<UserProfile>(loadProfile);
   const [token, setTokenState] = useState<string | null>(getToken);
+  const [debugInfo, setDebugInfo] = useState<string[]>([]);
+  const addDebug = useCallback((msg: string) => {
+    console.log(msg);
+    setDebugInfo(prev => [...prev.slice(-20), msg]);
+  }, []);
+  const clearDebug = useCallback(() => {
+    setDebugInfo([]);
+  }, []);
 
   const setToken = useCallback((newToken: string) => {
     // 清理前一个用户的本地数据，防止用户间数据残留
@@ -280,7 +291,7 @@ export function UserProvider({ children }: { children: ReactNode }) {
   }, []); // eslint-disable-line react-hooks/exhaustive-deps
 
   return (
-    <UserContext.Provider value={{ user, token, updateUser, updateUserRemote, setToken, setTokenAndUser, fetchProfile, logout }}>
+    <UserContext.Provider value={{ user, token, updateUser, updateUserRemote, setToken, setTokenAndUser, fetchProfile, debugInfo, addDebug, clearDebug, logout }}>
       {children}
     </UserContext.Provider>
   );

frontend/src/app/pages/LoginPage.tsx

@@ -10,11 +10,7 @@ export function LoginPage() {
   const navigate = useNavigate();
   const { setTokenAndUser, fetchProfile } = useUser();
   const [error, setError] = useState("");
-  const [debugInfo, setDebugInfo] = useState<string[]>([]);
-  const addDebug = (msg: string) => {
-    console.log(msg);
-    setDebugInfo(prev => [...prev.slice(-20), msg]);
-  };
+  const { addDebug, debugInfo } = useUser();
 
   useEffect(() => {
     clearDebugLogs();
@@ -98,19 +94,6 @@ export function LoginPage() {
 
   return (
     <div className="min-h-dvh bg-morandi-50 flex items-center justify-center p-4 relative">
-      {/* 调试浮层：点击可关闭 */}
-      {debugInfo.length > 0 && (
-        <div
-          className="absolute top-0 left-0 right-0 z-50 bg-black/80 text-green-400 text-xs p-3 overflow-auto max-h-[50%] cursor-pointer font-mono"
-          style={{ whiteSpace: 'pre-wrap', wordBreak: 'break-all', lineHeight: 1.5 }}
-          onClick={() => setDebugInfo([])}
-        >
-          <div style={{borderBottom:'1px solid #0f0',paddingBottom:4,marginBottom:4,fontWeight:'bold',fontSize:14}}>H5应用调试</div>
-          {debugInfo.map((msg, i) => (
-            <div key={i}>{msg}</div>
-          ))}
-        </div>
-      )}
       <div className="text-center">
         <motion.div
           animate={{ rotate: 360 }}