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/UnifiServiceProvider.php

@@ -0,0 +1,34 @@
+<?php
+
+namespace Dashboard\Unifi;
+
+use Illuminate\Support\ServiceProvider;
+
+class UnifiServiceProvider extends ServiceProvider
+{
+    public function register(): void
+    {
+        $this->mergeConfigFrom(__DIR__ . '/../config/unifi.php', 'unifi');
+
+        $this->app->singleton(Services\UnifiApiClient::class, function ($app) {
+            return new Services\UnifiApiClient();
+        });
+    }
+
+    public function boot(): void
+    {
+        $this->loadRoutesFrom(__DIR__ . '/routes/unifi.php');
+        $this->loadMigrationsFrom(__DIR__ . '/../database/migrations');
+
+        if ($this->app->runningInConsole()) {
+            $this->commands([
+                Console\CheckWebhooks::class,
+                Console\CaptureSnapshots::class,
+                Console\CleanupSnapshots::class,
+            ]);
+            $this->publishes([
+                __DIR__ . '/../config/unifi.php' => config_path('unifi.php'),
+            ], 'unifi-config');
+        }
+    }
+}