fix: trim login info

frontend/admin/src/pages/LoginPage.vue

@@ -17,15 +17,18 @@ const loading = ref(false);
 const errorMessage = ref('');
 
 const validateForm = () => {
-    if (!username.value.trim()) {
+    const trimmedUsername = username.value.trim();
+    const trimmedPassword = password.value.trim();
+
+    if (!trimmedUsername) {
         errorMessage.value = '请输入用户名';
         return false;
     }
-    if (!password.value) {
+    if (!trimmedPassword) {
         errorMessage.value = '请输入密码';
         return false;
     }
-    if (password.value.length < 8) {
+    if (trimmedPassword.length < 8) {
         errorMessage.value = '密码至少需要8个字符';
         return false;
     }
@@ -38,8 +41,11 @@ const handleLogin = async () => {
     loading.value = true;
     errorMessage.value = '';
 
+    const trimmedUsername = username.value.trim();
+    const trimmedPassword = password.value.trim();
+
     try {
-        const resp = await authService.login(username.value, password.value);
+        const resp = await authService.login(trimmedUsername, trimmedPassword);
         const { token } = resp.data;
         if (!token) {
             alert('登录失败');