feat: introduce WebSocket sync for XBoard nodes

- Implement Workerman-based `xboard:ws-server` for real-time node synchronization.
- Support custom routes, outbounds, and certificate configurations via JSON.
- Optimize scheduled tasks with `lazyById` to minimize memory footprint.
- Enhance reactivity using Observers for `Plan`, `Server`, and `ServerRoute`.
- Expand protocol support for `httpupgrade`, `h2`, and `mieru`.

app/Http/Controllers/V2/Admin/Server/RouteController.php

@@ -23,7 +23,7 @@ class RouteController extends Controller
         $params = $request->validate([
             'remarks' => 'required',
             'match' => 'required|array',
-            'action' => 'required|in:block,dns',
+            'action' => 'required|in:block,direct,dns,proxy',
             'action_value' => 'nullable'
         ], [
             'remarks.required' => '备注不能为空',