feat(api): 新增节点墙检测自动托管与显隐

新增定时墙检测命令与节点托管字段，自动为开启托管的父
节点创建检测任务，并在 blocked 时自动隐藏节点、normal
时仅恢复由墙检测自动隐藏的节点

更新自动上线服务以尊重 blocked 与自动隐藏状态，避免疑
似被墙节点被重新发布；同时补齐管理端墙检测托管开关、
刷新入口、批量设置与相关测试和知识库同步

app/Console/Commands/SyncServerGfwChecks.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace App\Console\Commands;
+
+use App\Services\ServerGfwCheckService;
+use Illuminate\Console\Command;
+
+class SyncServerGfwChecks extends Command
+{
+    protected $signature = 'sync:server-gfw-checks {--limit= : Maximum number of nodes to enqueue}';
+
+    protected $description = 'Create automated GFW check tasks for managed parent nodes';
+
+    public function handle(ServerGfwCheckService $service): int
+    {
+        $limit = $this->option('limit');
+        $result = $service->startAutomaticChecks(
+            is_numeric($limit) ? (int) $limit : null
+        );
+
+        $this->info(sprintf(
+            'Server GFW checks synced: total=%d started=%d skipped=%d active=%d',
+            $result['total'],
+            count($result['started']),
+            count($result['skipped']),
+            $result['active']
+        ));
+
+        return self::SUCCESS;
+    }
+}