Separate webinars from meetings and add conference billing.

Add restart meeting actions, a dedicated webinar sidebar flow billed at GHS 0.30 per participant, and reserve speaker-line space with a placeholder to prevent layout shift.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/Http/Controllers/Meet/MeetingRoomController.php

@@ -79,8 +79,11 @@ class MeetingRoomController extends Controller
 
         $this->sessions->end($session, $participant->user_ref ?? $participant->uuid);
 
-        return redirect()->route('meet.rooms.show', $session->room)
-            ->with('success', 'Meeting ended.');
+        $room = $session->room;
+        $route = $room->isWebinar() ? 'meet.webinars.show' : 'meet.rooms.show';
+
+        return redirect()->route($route, $room)
+            ->with('success', $room->isWebinar() ? 'Webinar ended.' : 'Meeting ended.');
     }
 
     public function leave(Request $request, Session $session): RedirectResponse