feat(dialog): 管理员可设置全员群名称

- 后端 group__edit 放开全员群改名（仅系统管理员 admin=1）
- formatData/getGroupName 用 ALL_GROUP_DEFAULT_NAME 哨兵区分"未自定义"，
  避免回退逻辑被默认种子名短路导致 i18n 丢失
- 前端 canModifyName/编辑入口对全员群管理员放开，改名请求带 admin=1

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

app/Http/Controllers/Api/DialogController.php

@@ -2916,7 +2916,9 @@ class DialogController extends AbstractController
             $data['avatar'] = Base::fillUrl($array['avatar'] = $avatar);
         }
         $existName = Request::exists('chat_name') || Request::exists('name');
-        if ($existName && $dialog->group_type === 'user') {
+        // 个人群组群主可改名；全员群仅系统管理员可改名
+        $canEditName = $dialog->group_type === 'user' || ($dialog->group_type === 'all' && $admin === 1);
+        if ($existName && $canEditName) {
             $chatName = trim(Request::input('chat_name') ?: Request::input('name'));
             if (mb_strlen($chatName) < 2) {
                 return Base::retError('群名称至少2个字');

app/Models/WebSocketDialog.php

@@ -62,6 +62,9 @@ class WebSocketDialog extends AbstractModel
 {
     use SoftDeletes;
 
+    // 全员群初始化默认名称（双语字面量），用于识别"管理员尚未自定义"的状态
+    const ALL_GROUP_DEFAULT_NAME = '全体成员 All members';
+
     protected $appends = ['deputy_ids'];
 
     /**
@@ -366,7 +369,9 @@ class WebSocketDialog extends AbstractModel
                         }
                         break;
                     case 'all':
-                        $data['name'] = Doo::translate('全体成员');
+                        $data['name'] = ($data['name'] && $data['name'] !== self::ALL_GROUP_DEFAULT_NAME)
+                            ? $data['name']
+                            : Doo::translate('全体成员');
                         $data['dialog_mute'] = Base::settingFind('system', 'all_group_mute');
                         break;
                 }
@@ -824,7 +829,9 @@ class WebSocketDialog extends AbstractModel
                         $name = \DB::table('project_tasks')->where('dialog_id', $this->id)->value('name');
                         break;
                     case 'all':
-                        $name = Doo::translate('全体成员');
+                        $name = ($name && $name !== self::ALL_GROUP_DEFAULT_NAME)
+                            ? $name
+                            : Doo::translate('全体成员');
                         break;
                 }
             }

database/seeders/WebSocketDialogsTableSeeder.php

@@ -218,6 +218,6 @@ class WebSocketDialogsTableSeeder extends Seeder
         User::botGetOrCreate('ai-claude');
 
         $userids = User::whereBot(0)->whereNull('disable_at')->pluck('userid')->toArray();
-        WebSocketDialog::createGroup("全体成员 All members", $userids, 'all');
+        WebSocketDialog::createGroup(WebSocketDialog::ALL_GROUP_DEFAULT_NAME, $userids, 'all');
     }
 }

resources/assets/js/pages/manage/components/DialogGroupInfo.vue

@@ -6,7 +6,7 @@
                 <div class="quick-edit">
                     <div class="quick-text" :title="dialogData.name">{{dialogData.name}}</div>
                     <Icon
-                        v-if="isOwnerOrDeputy"
+                        v-if="isOwnerOrDeputy || (dialogData.group_type === 'all' && userIsAdmin)"
                         class="quick-icon"
                         type="ios-create-outline"
                         @click.stop="onEditName"/>

resources/assets/js/pages/manage/components/DialogWrapper.vue

@@ -1028,6 +1028,10 @@ export default {
             if (this.modifyData.userid) {
                 return true
             }
+            if (this.dialogData.group_type === 'all') {
+                // 全员群仅系统管理员可改名
+                return this.userIsAdmin
+            }
             return this.dialogData.group_type === 'user'
         },
 
@@ -2873,6 +2877,10 @@ export default {
                         avatar: this.dialogData.avatar,
                         name: this.dialogData.name
                     }
+                    if (this.dialogData.group_type === 'all') {
+                        // 全员群走系统管理员权限校验
+                        this.modifyData.admin = 1
+                    }
                     if (this.dialogData.type === 'user') {
                         // 机器人
                         this.modifyData = Object.assign(this.modifyData, {