Complete Payment module: initiate/webhook/confirm/refund actions, Filament resources (T5.8-T5.13)

- InitiatePaymentAction + POST /api/v1/payments/{booking}/initiate
- Generic KBZ webhook (POST /api/v1/webhooks/{method}/{encryptBookingId?}),
  signature verification per KBZ's real callback spec, PaymentGatewayInterface::handleWebhook()
- ConfirmPaymentAction: idempotent confirmation, PaymentCompleted/PaymentFailed events,
  MarkBookingPaid listener
- RefundBookingAction + POST /api/v1/bookings/{booking}/refund: partial refunds validated
  against remaining balance, RefundProcessed event, MarkBookingRefunded listener
- CancelBookingAction now refunds confirmed bookings instead of rejecting; BookingPolicy::cancel
  requires process_refunds for confirmed bookings
- PaymentPlugin + PaymentResource/RefundResource Filament admin UI (read-only payments,
  refund list + Process action)
- Booking detail page now shows related payments
- Fix CACHE_STORE mismatch (database -> redis) so tagged route caching works
- CLAUDE.md: never run migrate:fresh/migrate:refresh/db:wipe on dev without being asked

app-modules/booking/tests/Unit/CancelBookingActionTest.php

@@ -4,35 +4,84 @@ use Modules\Booking\Actions\CancelBookingAction;
 use Modules\Booking\Enums\BookingStatus;
 use Modules\Booking\Exceptions\BookingCannotBeCancelledException;
 use Modules\Booking\Models\Booking;
+use Modules\Payment\Contracts\PaymentGatewayInterface;
+use Modules\Payment\Data\PaymentRequestData;
+use Modules\Payment\Data\PaymentResultData;
+use Modules\Payment\Data\RefundResultData;
+use Modules\Payment\Enums\PaymentMethod;
+use Modules\Payment\Enums\RefundStatus;
+use Modules\Payment\Factories\PaymentGatewayFactory;
+use Modules\Payment\Models\Payment;
 
-test('it cancels a pending_payment booking', function () {
+/**
+ * Never calls the real KBZ refund API in tests.
+ */
+class FakeCancelRefundGateway implements PaymentGatewayInterface
+{
+    public static ?string $lastAmount = null;
+
+    public function initiate(PaymentRequestData $data): PaymentResultData
+    {
+        throw new RuntimeException('not needed for this test');
+    }
+
+    public function verify(string $gatewayTransactionId): PaymentResultData
+    {
+        throw new RuntimeException('not needed for this test');
+    }
+
+    public function refund(string $gatewayTransactionId, string $amount, string $reason): RefundResultData
+    {
+        self::$lastAmount = $amount;
+
+        return new RefundResultData(status: RefundStatus::Completed, gatewayRefundId: 'REFUND123', gatewayPayload: []);
+    }
+
+    public function handleWebhook(array $payload): PaymentResultData
+    {
+        throw new RuntimeException('not needed for this test');
+    }
+}
+
+beforeEach(function () {
+    FakeCancelRefundGateway::$lastAmount = null;
+    app(PaymentGatewayFactory::class)->register(PaymentMethod::KbzMiniApp, FakeCancelRefundGateway::class);
+});
+
+test('it cancels a pending_payment booking directly', function () {
     $booking = Booking::factory()->create(['status' => BookingStatus::PendingPayment]);
 
-    $cancelled = (new CancelBookingAction)->handle($booking);
+    $cancelled = app(CancelBookingAction::class)->handle($booking);
 
     expect($cancelled->status)->toBe(BookingStatus::Cancelled)
         ->and($booking->refresh()->status)->toBe(BookingStatus::Cancelled);
 });
 
-test('it guards against cancelling a confirmed booking', function () {
-    $booking = Booking::factory()->create(['status' => BookingStatus::Confirmed]);
+test('it cancels a confirmed booking by refunding it in full', function () {
+    $booking = Booking::factory()->create(['status' => BookingStatus::Confirmed, 'price' => 15000]);
+    Payment::factory()->completed()->create([
+        'booking_id' => $booking->id,
+        'gateway' => PaymentMethod::KbzMiniApp,
+        'amount' => 15000,
+        'gateway_transaction_id' => 'EVB-CANCEL-TEST-1',
+    ]);
 
-    expect(fn () => (new CancelBookingAction)->handle($booking))
-        ->toThrow(BookingCannotBeCancelledException::class);
+    $cancelled = app(CancelBookingAction::class)->handle($booking);
 
-    expect($booking->refresh()->status)->toBe(BookingStatus::Confirmed);
+    expect($cancelled->status)->toBe(BookingStatus::Cancelled)
+        ->and(FakeCancelRefundGateway::$lastAmount)->toBe('15000.00');
 });
 
 test('it guards against cancelling an already cancelled booking', function () {
     $booking = Booking::factory()->create(['status' => BookingStatus::Cancelled]);
 
-    expect(fn () => (new CancelBookingAction)->handle($booking))
+    expect(fn () => app(CancelBookingAction::class)->handle($booking))
         ->toThrow(BookingCannotBeCancelledException::class);
 });
 
 test('it guards against cancelling an expired booking', function () {
     $booking = Booking::factory()->create(['status' => BookingStatus::Expired]);
 
-    expect(fn () => (new CancelBookingAction)->handle($booking))
+    expect(fn () => app(CancelBookingAction::class)->handle($booking))
         ->toThrow(BookingCannotBeCancelledException::class);
 });