fix(admin-frontend): 修复节点权限组保存与协议默认值

统一将节点编辑和批量修改的 group_ids、route_ids
序列化为字符串 ID，避免保存权限组后订阅侧无法命中节点

后端新增 whereGroupId 兼容历史字符串与数字 JSON 值，
并补齐 TUIC 版本、ALPN 选项及 AnyTLS 默认 Padding 配置

docs: 新增 HelloAGENTS 通用与工作流避坑指南

app/Services/NodeSyncService.php

@@ -39,7 +39,7 @@ class NodeSyncService
      */
     public static function notifyUsersUpdatedByGroup(int $groupId): void
     {
-        $servers = Server::whereJsonContains('group_ids', (string) $groupId)
+        $servers = Server::whereGroupId($groupId)
             ->get();
 
         foreach ($servers as $server) {
@@ -59,7 +59,7 @@ class NodeSyncService
         if (!$user->group_id)
             return;
 
-        $servers = Server::whereJsonContains('group_ids', (string) $user->group_id)->get();
+        $servers = Server::whereGroupId($user->group_id)->get();
         foreach ($servers as $server) {
             if (!self::isNodeOnline($server->id))
                 continue;
@@ -90,7 +90,7 @@ class NodeSyncService
      */
     public static function notifyUserRemovedFromGroup(int $userId, int $groupId): void
     {
-        $servers = Server::whereJsonContains('group_ids', (string) $groupId)
+        $servers = Server::whereGroupId($groupId)
             ->get();
 
         foreach ($servers as $server) {