Add truck booking SPA flow (API, DTOs, Angular view/controller)

[Ajaygoel]

Motivation

• Provide a simple truck booking workflow so trucks can be reserved independently of containers and drivers.
• Deliver a minimal end-to-end demo with an in-memory backend and a single-page Angular UI to exercise common booking actions.

Description

• Added DTOs domain/DTO/Truck.cs, domain/DTO/TruckBooking.cs, and domain/DTO/TruckBookingRequest.cs to model trucks and bookings.
• Implemented a new API controller DemoCargoClix/Controllers/TruckBookingsController.cs exposing GetTrucks, GetBookings, GetBooking, and CreateBooking backed by in-memory lists.
• Added an Angular route /truck-bookings in DemoCargoClix/Scripts/app/app.js, a TruckBookingsCtrl in DemoCargoClix/Scripts/app/controllers.js, and the UI in DemoCargoClix/Views/TruckBookings.cshtml to list trucks, create bookings, and show recent bookings.
• Updated project files (domain/domain.csproj, DemoCargoClix/DemoCargoClix.csproj) to include the new DTOs, controller, and view, and added lightweight styles to DemoCargoClix/Content/app.css.

Testing

• No automated tests were executed against these changes.
• No CI/build verification was run in this environment.

---

Codex Task