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/tests/Feature/BookingReadApiTest.php

@@ -0,0 +1,71 @@
+<?php
+
+use App\Models\User;
+use Modules\Booking\Models\Booking;
+use Spatie\Permission\Models\Permission;
+
+beforeEach(function () {
+    Permission::findOrCreate('view_bookings', 'web');
+
+    $this->owner = User::factory()->create();
+    $this->token = $this->owner->createToken('test-token')->plainTextToken;
+});
+
+test('index lists only the authenticated user\'s own bookings, latest first', function () {
+    $mine = Booking::factory()->create(['user_id' => $this->owner->id, 'created_at' => now()->subMinute()]);
+    $mineNewer = Booking::factory()->create(['user_id' => $this->owner->id]);
+    Booking::factory()->create(['user_id' => User::factory()->create()->id]);
+
+    $this->withHeader('Authorization', "Bearer {$this->token}")
+        ->getJson('/api/v1/bookings')
+        ->assertSuccessful()
+        ->assertJsonCount(2, 'data')
+        ->assertJsonPath('data.0.id', $mineNewer->id)
+        ->assertJsonPath('data.1.id', $mine->id);
+});
+
+test('index rejects unauthenticated requests', function () {
+    $this->getJson('/api/v1/bookings')->assertUnauthorized();
+});
+
+test('show allows the owner to view their own booking', function () {
+    $booking = Booking::factory()->create(['user_id' => $this->owner->id]);
+
+    $this->withHeader('Authorization', "Bearer {$this->token}")
+        ->getJson("/api/v1/bookings/{$booking->booking_ref}")
+        ->assertSuccessful()
+        ->assertJsonPath('data.id', $booking->id);
+});
+
+test('show rejects a non-owner without the view_bookings permission', function () {
+    $booking = Booking::factory()->create(['user_id' => User::factory()->create()->id]);
+
+    $this->withHeader('Authorization', "Bearer {$this->token}")
+        ->getJson("/api/v1/bookings/{$booking->booking_ref}")
+        ->assertForbidden();
+});
+
+test('show allows an admin/support user (view_bookings permission) to view someone else\'s booking', function () {
+    $admin = User::factory()->create();
+    $admin->givePermissionTo('view_bookings');
+    $adminToken = $admin->createToken('admin-token')->plainTextToken;
+
+    $booking = Booking::factory()->create(['user_id' => $this->owner->id]);
+
+    $this->withHeader('Authorization', "Bearer {$adminToken}")
+        ->getJson("/api/v1/bookings/{$booking->booking_ref}")
+        ->assertSuccessful()
+        ->assertJsonPath('data.id', $booking->id);
+});
+
+test('show rejects unauthenticated requests', function () {
+    $booking = Booking::factory()->create();
+
+    $this->getJson("/api/v1/bookings/{$booking->id}")->assertUnauthorized();
+});
+
+test('show 404s for a booking that does not exist', function () {
+    $this->withHeader('Authorization', "Bearer {$this->token}")
+        ->getJson('/api/v1/bookings/EVB-DOES-NOT-EXIST')
+        ->assertNotFound();
+});