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/Observers/PlanObserver.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace App\Observers;
+
+use App\Models\Plan;
+use App\Models\User;
+use App\Services\TrafficResetService;
+
+class PlanObserver
+{
+    /**
+     * reset user  next_reset_at
+     */
+    public function updated(Plan $plan): void
+    {
+        if (!$plan->isDirty('reset_traffic_method')) {
+            return;
+        }
+        $trafficResetService = app(TrafficResetService::class);
+        User::where('plan_id', $plan->id)
+            ->where('banned', 0)
+            ->where(function ($query) {
+                $query->where('expired_at', '>', time())
+                    ->orWhereNull('expired_at');
+            })
+            ->lazyById(500)
+            ->each(function (User $user) use ($trafficResetService) {
+                $nextResetTime = $trafficResetService->calculateNextResetTime($user);
+                $user->update([
+                    'next_reset_at' => $nextResetTime?->timestamp,
+                ]);
+            });
+    }
+}
+