fix: align user group access controls

frontend/src/views/admin/Users.vue

@@ -1552,6 +1552,10 @@ function formatUserEffectiveRateLimitSource(user: User): string {
   if (source.source === 'group' && source.group_name) {
     return `继承自分组：${source.group_name}`
   }
+  if (source.source === 'combined') {
+    const groupNames = Array.isArray(source.group_names) ? source.group_names.join('、') : ''
+    return groupNames ? `用户额外限制与分组叠加：${groupNames}` : '用户额外限制与分组叠加'
+  }
   if (source.source === 'user') {
     return '用户单独配置'
   }
@@ -1596,14 +1600,6 @@ function editUser(user: User) {
     unlimited: user.unlimited,
     role: user.role,
     is_active: user.is_active,
-    allowed_providers: user.allowed_providers == null ? null : [...user.allowed_providers],
-    allowed_api_formats: user.allowed_api_formats == null ? null : [...user.allowed_api_formats],
-    allowed_models: user.allowed_models == null ? null : [...user.allowed_models],
-    rate_limit: user.rate_limit ?? null,
-    allowed_providers_mode: user.allowed_providers_mode ?? (user.allowed_providers == null ? 'unrestricted' : 'specific'),
-    allowed_api_formats_mode: user.allowed_api_formats_mode ?? (user.allowed_api_formats == null ? 'unrestricted' : 'specific'),
-    allowed_models_mode: user.allowed_models_mode ?? (user.allowed_models == null ? 'unrestricted' : 'specific'),
-    rate_limit_mode: user.rate_limit_mode ?? (user.rate_limit == null ? 'system' : 'custom'),
     group_ids: (user.groups || []).map(group => group.id),
   }
   showUserFormDialog.value = true
@@ -1624,14 +1620,6 @@ async function handleUserFormSubmit(data: UserFormData & { password?: string; un
         email: data.email || undefined,
         unlimited: data.unlimited,
         role: data.role,
-        allowed_providers: data.allowed_providers,
-        allowed_providers_mode: data.allowed_providers_mode,
-        allowed_api_formats: data.allowed_api_formats,
-        allowed_api_formats_mode: data.allowed_api_formats_mode,
-        allowed_models: data.allowed_models,
-        allowed_models_mode: data.allowed_models_mode,
-        rate_limit: data.rate_limit ?? null,
-        rate_limit_mode: data.rate_limit_mode,
         group_ids: data.group_ids ?? [],
       }
       if (data.password) {
@@ -1649,14 +1637,6 @@ async function handleUserFormSubmit(data: UserFormData & { password?: string; un
         initial_gift_usd: data.initial_gift_usd,
         unlimited: data.unlimited,
         role: data.role,
-        allowed_providers: data.allowed_providers,
-        allowed_providers_mode: data.allowed_providers_mode,
-        allowed_api_formats: data.allowed_api_formats,
-        allowed_api_formats_mode: data.allowed_api_formats_mode,
-        allowed_models: data.allowed_models,
-        allowed_models_mode: data.allowed_models_mode,
-        rate_limit: data.rate_limit ?? null,
-        rate_limit_mode: data.rate_limit_mode,
         group_ids: data.group_ids ?? [],
       })
       // 如果创建时指定为禁用，则更新状态

frontend/src/views/admin/system-settings/UsersImportDialog.vue

@@ -15,6 +15,9 @@
           数据预览
         </p>
         <ul class="space-y-1 text-muted-foreground">
+          <li v-if="importUsersPreview.user_groups?.length">
+            用户组: {{ importUsersPreview.user_groups.length }} 个
+          </li>
           <li>用户: {{ importUsersPreview.users?.length || 0 }} 个</li>
           <li>
             API Keys: {{ importUsersPreview.users?.reduce((sum: number, u: { api_keys?: unknown[] }) => sum + (u.api_keys?.length || 0), 0) }} 个
@@ -93,6 +96,16 @@
       class="space-y-4"
     >
       <div class="grid grid-cols-2 gap-4 text-sm">
+        <div v-if="importUsersResult.stats.user_groups">
+          <p class="font-medium">
+            用户组
+          </p>
+          <p class="text-muted-foreground">
+            创建: {{ importUsersResult.stats.user_groups.created }},
+            更新: {{ importUsersResult.stats.user_groups.updated }},
+            跳过: {{ importUsersResult.stats.user_groups.skipped }}
+          </p>
+        </div>
         <div>
           <p class="font-medium">
             用户

frontend/src/views/admin/system-settings/composables/useConfigExportImport.ts

@@ -36,7 +36,9 @@ function looksLikeConfigExport(value: JsonObject): boolean {
 }
 
 function looksLikeUsersExport(value: JsonObject): boolean {
-  return hasArrayField(value, 'users') || hasArrayField(value, 'standalone_keys')
+  return hasArrayField(value, 'users')
+    || hasArrayField(value, 'standalone_keys')
+    || hasArrayField(value, 'user_groups')
 }
 
 export function useConfigExportImport(systemConfig: { value: SystemConfig }) {
@@ -231,6 +233,11 @@ export function useConfigExportImport(systemConfig: { value: SystemConfig }) {
           return
         }
 
+        if (root.user_groups != null && !Array.isArray(root.user_groups)) {
+          error('无效的用户数据文件：user_groups 必须是数组')
+          return
+        }
+
         if (root.standalone_keys != null && !Array.isArray(root.standalone_keys)) {
           error('无效的用户数据文件：standalone_keys 必须是数组')
           return