feat: Move Trello card to Packing when inspection is passed

- Create InspectionPassed event
- Create MoveCardToPackingOnInspectionPassed listener
- Register event listener in EventServiceProvider
- Dispatch event when markInspectionPassed() is called

Now when an order passes inspection on the ops page, the Trello card
automatically moves from Inspection to Packing list.

app/Http/Controllers/OpsController.php

@@ -119,7 +119,7 @@ class OpsController extends Controller
             ], 409);
         }
 
-        // Update status and emit event
+        // Update status
         $order->update(['status' => 'packing']);
 
         Log::info('Inspection passed via QR', [
@@ -127,8 +127,8 @@ class OpsController extends Controller
             'marked_by' => auth()->user()->name,
         ]);
 
-        // Emit event for listeners to handle Slack/Trello updates
-        // TODO: Create InspectionPassed event
+        // Emit event to trigger Slack/Trello updates
+        \App\Events\InspectionPassed::dispatch($order);
 
         return response()->json([
             'success' => true,