移除注册功能，管理员创建用户并新增创建用户弹窗

frontend/src/components/LoginForm.tsx

@@ -1,5 +1,5 @@
 import { useState } from 'react'
-import { Shield, Lock, AlertCircle, Loader2, UserPlus, LogIn } from 'lucide-react'
+import { Shield, Lock, AlertCircle, Loader2, LogIn } from 'lucide-react'
 import { api, setToken } from '@/lib/api'
 import { setStoredUser } from '@/lib/auth'
 
@@ -8,9 +8,7 @@ interface LoginFormProps {
 }
 
 export function LoginForm({ onSuccess }: LoginFormProps) {
-  const [mode, setMode] = useState<'login' | 'register'>('login')
   const [username, setUsername] = useState('')
-  const [email, setEmail] = useState('')
   const [password, setPassword] = useState('')
   const [error, setError] = useState('')
   const [loading, setLoading] = useState(false)
@@ -22,25 +20,14 @@ export function LoginForm({ onSuccess }: LoginFormProps) {
       setError('请输入用户名和密码')
       return
     }
-    if (mode === 'register' && password.length < 6) {
-      setError('密码长度至少 6 位')
-      return
-    }
     setLoading(true)
     try {
-      const res =
-        mode === 'login'
-          ? await api.login({ username: username.trim(), password })
-          : await api.register({
-              username: username.trim(),
-              email: email.trim() || undefined,
-              password,
-            })
+      const res = await api.login({ username: username.trim(), password })
       setToken(res.token)
       setStoredUser(res.user)
       onSuccess()
     } catch (err: any) {
-      setError(err?.message || '操作失败，请稍后重试')
+      setError(err?.message || '登录失败，请稍后重试')
     } finally {
       setLoading(false)
     }
@@ -61,13 +48,9 @@ export function LoginForm({ onSuccess }: LoginFormProps) {
           >
             <Shield className="h-8 w-8" style={{ color: '#8B5CF6' }} />
           </div>
-          <h1 className="mt-5 text-2xl font-bold text-foreground tracking-tight">
-            {mode === 'login' ? '登录账号' : '注册账号'}
-          </h1>
+          <h1 className="mt-5 text-2xl font-bold text-foreground tracking-tight">登录账号</h1>
           <p className="mt-2 text-sm text-secondary leading-relaxed">
-            {mode === 'login'
-              ? '请输入用户名和密码进入系统。'
-              : '注册后默认获得用户权限。'}
+            请输入用户名和密码进入系统。
           </p>
         </div>
 
@@ -86,29 +69,13 @@ export function LoginForm({ onSuccess }: LoginFormProps) {
             />
           </div>
 
-          {mode === 'register' && (
-            <div className="relative">
-              <div className="absolute left-3 top-1/2 -translate-y-1/2 text-muted">
-                <Shield className="h-4 w-4" />
-              </div>
-              <input
-                type="email"
-                autoComplete="email"
-                placeholder="邮箱（可选）"
-                value={email}
-                onChange={(e) => setEmail(e.target.value)}
-                className="w-full pl-9 pr-3 py-2.5 rounded-input bg-base border border-border text-sm focus:outline-none focus:border-accent focus:ring-1 focus:ring-accent/30 transition-all"
-              />
-            </div>
-          )}
-
           <div className="relative">
             <div className="absolute left-3 top-1/2 -translate-y-1/2 text-muted">
               <Lock className="h-4 w-4" />
             </div>
             <input
               type="password"
-              autoComplete={mode === 'login' ? 'current-password' : 'new-password'}
+              autoComplete="current-password"
               placeholder="密码"
               value={password}
               onChange={(e) => setPassword(e.target.value)}
@@ -130,26 +97,15 @@ export function LoginForm({ onSuccess }: LoginFormProps) {
           >
             {loading ? (
               <Loader2 className="h-4 w-4 animate-spin" />
-            ) : mode === 'login' ? (
-              <LogIn className="h-4 w-4" />
             ) : (
-              <UserPlus className="h-4 w-4" />
+              <LogIn className="h-4 w-4" />
             )}
-            {loading ? '处理中…' : mode === 'login' ? '登录' : '注册'}
+            {loading ? '处理中…' : '登录'}
           </button>
         </form>
 
         <div className="mt-5 text-center">
-          <button
-            type="button"
-            onClick={() => {
-              setMode(mode === 'login' ? 'register' : 'login')
-              setError('')
-            }}
-            className="text-xs text-secondary hover:text-accent transition-colors"
-          >
-            {mode === 'login' ? '没有账号？立即注册' : '已有账号？直接登录'}
-          </button>
+          <span className="text-xs text-secondary">没有账号？请联系管理员创建</span>
         </div>
       </div>
     </motion.div>