feat: 用户管理列表增加来源字段(auth_source)，支持本地/LDAP筛选

frontend/src/pages/UsersPage.tsx

@@ -24,6 +24,7 @@ interface UserItem {
   is_active: boolean;
   created_at: string;
   last_login?: string | null;
+  auth_source?: string; // 'local' | 'ldap'
 }
 
 interface UserActivity {
@@ -70,6 +71,12 @@ const statusOptions = [
   { value: 'disabled', label: '禁用' },
 ];
 
+const sourceOptions = [
+  { value: '', label: '全部来源' },
+  { value: 'local', label: '本地' },
+  { value: 'ldap', label: 'LDAP' },
+];
+
 const BATCH_OPTIONS = [
   { key: 'enable', label: '批量启用', icon: UserCheck },
   { key: 'disable', label: '批量禁用', icon: UserX },
@@ -124,6 +131,7 @@ export default function UsersPage() {
   const [search, setSearch] = useState('');
   const [roleFilter, setRoleFilter] = useState('');
   const [statusFilter, setStatusFilter] = useState('');
+  const [sourceFilter, setSourceFilter] = useState('');
   const [users, setUsers] = useState<UserItem[]>([]);
   const [total, setTotal] = useState(0);
   const [page, setPage] = useState(1);
@@ -159,7 +167,10 @@ export default function UsersPage() {
 
   useEffect(() => { fetchUsers(); }, [fetchUsers]);
 
-  const filtered = users;
+  const filtered = users.filter(u => {
+    if (sourceFilter && u.auth_source !== sourceFilter) return false;
+    return true;
+  });
 
   const allSelected = filtered.length > 0 && filtered.every(u => selectedIds.has(u.id));
 
@@ -298,9 +309,16 @@ export default function UsersPage() {
         >
           {statusOptions.map(s => <option key={s.value} value={s.value}>{s.label}</option>)}
         </select>
-        {(search || roleFilter || statusFilter) && (
+        <select
+          className="px-3 py-2.5 bg-[var(--dg-bg-tertiary)] border border-[var(--dg-border)] rounded-lg text-sm focus:border-blue-400 focus:outline-none"
+          value={sourceFilter}
+          onChange={e => setSourceFilter(e.target.value)}
+        >
+          {sourceOptions.map(s => <option key={s.value} value={s.value}>{s.label}</option>)}
+        </select>
+        {(search || roleFilter || statusFilter || sourceFilter) && (
           <button
-            onClick={() => { setSearch(''); setRoleFilter(''); setStatusFilter(''); setPage(1); }}
+            onClick={() => { setSearch(''); setRoleFilter(''); setStatusFilter(''); setSourceFilter(''); setPage(1); }}
             className="flex items-center gap-1 text-xs text-[var(--dg-text-muted)] hover:text-[var(--dg-text-primary)] transition-colors"
           >
             <RotateCcw className="w-3 h-3" /> 重置
@@ -382,6 +400,7 @@ export default function UsersPage() {
                       <th className="text-left px-4 py-3 font-semibold">邮箱</th>
                       <th className="text-left px-4 py-3 font-semibold">最后登录</th>
                       <th className="text-left px-4 py-3 font-semibold">状态</th>
+                      <th className="text-left px-4 py-3 font-semibold">来源</th>
                       <th className="text-left px-4 py-3 font-semibold">操作</th>
                     </tr>
                   </thead>
@@ -432,6 +451,15 @@ export default function UsersPage() {
                               />
                             </button>
                           </td>
+                          <td className="px-4 py-3.5">
+                            <span className={`inline-flex px-2 py-0.5 rounded text-xs font-medium ${
+                              user.auth_source === 'ldap'
+                                ? 'bg-blue-500/15 text-blue-400'
+                                : 'bg-[var(--dg-bg-tertiary)] text-[var(--dg-text-muted)]'
+                            }`}>
+                              {user.auth_source === 'ldap' ? 'LDAP' : '本地'}
+                            </span>
+                          </td>
                           <td className="px-4 py-3.5">
                             <div className="flex gap-1.5">
                               <button