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/Delivery/EventActions.php

@@ -2,6 +2,7 @@
 
 namespace App\Delivery;
 
+use App\Channels\ChannelRegistry;
 use App\Enums\EventState;
 use App\Models\Event;
 use App\Scheduling\DueResolver;
@@ -12,6 +13,7 @@ final class EventActions
     public function __construct(
         private readonly DueResolver $due,
         private readonly QuietRule $quiet,
+        private readonly ChannelRegistry $channels,
     ) {}
 
     /** «Помню»: молчать до следующей контрольной точки текущего состояния. */
@@ -35,5 +37,9 @@ final class EventActions
         $event->state = EventState::Done;
         $event->done_at = now();
         $event->save();
+
+        foreach ($event->deliveries()->with('channel')->get() as $delivery) {
+            $this->channels->for($delivery->channel->type)->onDone($event, $delivery);
+        }
     }
 }