feat: web, webhook and telegram channel drivers

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BCrwHHnGCB5XH968Nxokqw

core/app/Providers/AppServiceProvider.php

@@ -16,6 +16,12 @@ class AppServiceProvider extends ServiceProvider
             config('hado.fallback_hour_minutes'),
             config('hado.fallback_hours'),
         ));
+
+        $this->app->singleton(\App\Channels\WebhookChannel::class, fn () => new \App\Channels\WebhookChannel(config('hado.presence_timeout')));
+        $this->app->singleton(\App\Channels\TelegramChannel::class, fn () => new \App\Channels\TelegramChannel(
+            config('hado.telegram.token'),
+            config('hado.telegram.seen_ttl'),
+        ));
     }
 
     /**