feat: 登录记住我 + 测试用例编号

Author: CodeJudge

backend/src/controllers/authController.js

@@ -25,7 +25,7 @@ function register(req, res) {
 }
 
 function login(req, res) {
-  const { email, password } = req.body;
+  const { email, password, rememberMe } = req.body;
   if (!email || !password) {
     return res.status(400).json({ error: '请输入邮箱和密码' });
   }
@@ -35,7 +35,8 @@ function login(req, res) {
   }
   // Update last login
   run('UPDATE users SET last_login = datetime() WHERE id = ?', [user.id]);
-  const token = jwt.sign({ id: user.id, username: user.username, email: user.email, role: user.role }, JWT_SECRET, { expiresIn: '7d' });
+  const expiresIn = rememberMe ? '30d' : '7d';
+  const token = jwt.sign({ id: user.id, username: user.username, email: user.email, role: user.role }, JWT_SECRET, { expiresIn });
   res.json({
     token,
     user: { id: user.id, username: user.username, email: user.email, role: user.role, last_login: new Date().toISOString() },

frontend/src/pages/AdminProblemForm.tsx

@@ -412,6 +412,7 @@ export default function AdminProblemForm() {
             <div className="space-y-3">
               {testCases.map((tc, index) => (
                 <div key={index} className="card p-4 relative">
+                  <div className="absolute top-2 left-3 text-xs text-dark-500 font-mono">#{index + 1}</div>
                   {testCases.length > 1 && (
                     <button
                       type="button"

frontend/src/pages/Login.tsx

@@ -10,6 +10,7 @@ export default function Login() {
   const navigate = useNavigate();
   const [email, setEmail] = useState('');
   const [password, setPassword] = useState('');
+  const [rememberMe, setRememberMe] = useState(false);
   const [submitting, setSubmitting] = useState(false);
 
   useEffect(() => {
@@ -26,7 +27,7 @@ export default function Login() {
     }
     setSubmitting(true);
     try {
-      const res = await api.auth.login({ email: email.trim(), password });
+      const res = await api.auth.login({ email: email.trim(), password, rememberMe });
       login(res.token, res.user);
       toast.success('登录成功');
       navigate('/', { replace: true });
@@ -84,6 +85,16 @@ export default function Login() {
             </div>
           </div>
 
+          <label className="flex items-center gap-2 cursor-pointer select-none">
+            <input
+              type="checkbox"
+              checked={rememberMe}
+              onChange={(e) => setRememberMe(e.target.checked)}
+              className="w-4 h-4 rounded border-dark-600 bg-dark-800 text-primary-500 focus:ring-primary-500/30"
+            />
+            <span className="text-sm text-dark-400">记住我（30天有效）</span>
+          </label>
+
           <button
             type="submit"
             disabled={submitting}

frontend/src/services/api.ts

@@ -31,7 +31,7 @@ const api = {
   auth: {
     register: (body: { username: string; email: string; password: string }) =>
       request<{ token: string; user: import('../types').User }>('/auth/register', { method: 'POST', body: JSON.stringify(body) }),
-    login: (body: { email: string; password: string }) =>
+    login: (body: { email: string; password: string; rememberMe?: boolean }) =>
       request<{ token: string; user: import('../types').User }>('/auth/login', { method: 'POST', body: JSON.stringify(body) }),
     profile: () => request<import('../types').User>('/auth/profile'),
     leaderboard: () => request<any[]>('/auth/leaderboard'),