Add Booking module: model, create/read/cancel API, Filament resource (T4.1-T4.7)

- Booking model with booking_vehicle_options line items (supports mixing
  vehicle options like front_seat + back_seat in one booking), price
  snapshot, status machine, and driver/car assignment fields
- BookingService: front-seat max, disabled-option toggles, duplicate-option
  and whole-vehicle-exclusivity guards
- CreateBookingAction, CancelBookingAction, AssignDriverAction
- BookingRefGenerator: sequential EVB-AAAAA1-style refs via row lock
- POST/GET/cancel booking API endpoints (Sanctum, ownership + admin policy)
- BookingPlugin + Filament BookingResource: list, detail view, Cancel and
  Assign Driver actions (shared between table and detail page)
- domain.md updated for multi-vehicle-option bookings (§2) and driver/
  vehicle assignment (§5a)

app-modules/booking/src/Data/CreateBookingData.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace Modules\Booking\Data;
+
+use Modules\Booking\Enums\BookingChannel;
+
+readonly class CreateBookingData
+{
+    /**
+     * @param  list<VehicleSelectionData>  $selections  One or more Vehicle Option
+     *                                                  selections (e.g. front_seat + back_seat) — domain.md §2.
+     */
+    public function __construct(
+        public int $evRouteId,
+        public int $departureTimeSlotId,
+        public string $travelDate,
+        public array $selections,
+        public string $passengerName,
+        public string $passengerPhone,
+        public string $pickupAddress,
+        public string $dropoffAddress,
+        public BookingChannel $createdByChannel,
+        public ?int $userId = null,
+        public ?string $openid = null,
+        public ?float $pickupLat = null,
+        public ?float $pickupLng = null,
+        public ?float $dropoffLat = null,
+        public ?float $dropoffLng = null,
+        public bool $isRoundTrip = false,
+        public ?string $returnTravelDate = null,
+    ) {}
+}