feat: initial commit — UniFi snap-in package

Full UniFi dashboard snap-in including:
- WiFi/client/device stats with time-series snapshots
- Client Dashboard with traffic, satisfaction, signal, download charts
- Webhook alerting with debounced offline/online detection
- AP snapshot collection, client snapshot collection
- Device classification (type and OS) from OUI/hostname heuristics
- Webhook cooldown, templates, and multi-platform delivery

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/Console/CheckWebhooks.php

@@ -0,0 +1,22 @@
+<?php
+
+namespace Dashboard\Unifi\Console;
+
+use Dashboard\Unifi\Services\UnifiApiClient;
+use Dashboard\Unifi\Services\WebhookCheckService;
+use Illuminate\Console\Command;
+
+class CheckWebhooks extends Command
+{
+    protected $signature   = 'unifi:check-webhooks';
+    protected $description = 'Evaluate UniFi webhook conditions and fire alerts';
+
+    public function handle(WebhookCheckService $service, UnifiApiClient $unifi): int
+    {
+        $fired = $service->checkAll($unifi);
+        if ($fired > 0) {
+            $this->info("Fired {$fired} webhook(s).");
+        }
+        return self::SUCCESS;
+    }
+}