feat: Update Order/CustomOrder models and controllers with event integration

- Add integration fields to Order model: packing_*, courier_*, trello_card_id, qr_token
- Add integration fields to CustomOrder model: packing_*, proof_approved_*, courier_*, trello_card_id, qr_token
- Update Order model fillable array and add relationships (packedBy)
- Update CustomOrder model fillable array, casts, and add relationships (packedBy)
- Add isCustomOrder() method to both models for type checking
- Update OrderController to emit OrderCreated and DepositPaid events on successful payment
- For standard orders: full payment -> prep status, emit events
- For custom orders: deposit -> design status, balance -> printing status, emit respective events
- Add approveProof() method to CustomOrderController (POST /custom-orders/{id}/approve-proof)
- Add requestChanges() method to CustomOrderController (POST /custom-orders/{id}/request-changes)
- Add markBalancePaid() method to CustomOrderController (POST /custom-orders/{id}/pay-balance)
- All new methods emit appropriate events (ProofApproved, ProofRevisionRequested, BalancePaid)
- Add database migration for proof_approved and proof_approved_at fields on custom_orders
- Add routes for new custom order endpoints with UUID binding
- Import all required event classes in both controllers

routes/web.php

@@ -61,6 +61,9 @@ Route::middleware('auth')->group(function () {
     Route::get('/custom-orders/create', 'App\Http\Controllers\CustomOrderController@create')->name('custom-orders.create');
     Route::post('/custom-orders', 'App\Http\Controllers\CustomOrderController@store')->name('custom-orders.store');
     Route::get('/custom-orders/{customOrder:uuid}', 'App\Http\Controllers\CustomOrderController@show')->name('custom-orders.show');
+    Route::post('/custom-orders/{customOrder:uuid}/approve-proof', [CustomOrderController::class, 'approveProof'])->name('custom-orders.approve-proof');
+    Route::post('/custom-orders/{customOrder:uuid}/request-changes', [CustomOrderController::class, 'requestChanges'])->name('custom-orders.request-changes');
+    Route::post('/custom-orders/{customOrder:uuid}/pay-balance', [CustomOrderController::class, 'markBalancePaid'])->name('custom-orders.pay-balance');
     Route::post('/payment/yoco/custom/deposit', [CustomOrderController::class, 'depositPayment'])->name('yoco-custom-deposit');
     Route::get('/payment/yoco/custom/deposit/success/{customOrder:uuid}', [CustomOrderController::class, 'depositSuccess'])->name('yoco-custom-deposit-success');