feat(booking-service): add shop-wide staff schedules endpoint

Add GET /api/v1/schedules?shopId= to return all staff schedules
for a shop. Existing per-staff endpoint unchanged. BFF needs this
to display all schedules on the admin dashboard.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

services/booking-service-net/src/BookingService.API/Application/Queries/GetSchedulesByShopQuery.cs

@@ -0,0 +1,11 @@
+// EN: Query to get all staff schedules for a shop.
+// VI: Query lấy tất cả lịch làm việc nhân viên cho một shop.
+
+using BookingService.API.Application.DTOs;
+using MediatR;
+
+namespace BookingService.API.Application.Queries;
+
+public record GetSchedulesByShopQuery(
+    Guid ShopId
+) : IRequest<List<StaffScheduleDto>>;

services/booking-service-net/src/BookingService.API/Application/Queries/GetSchedulesByShopQueryHandler.cs

@@ -0,0 +1,33 @@
+// EN: Handler for GetSchedulesByShopQuery.
+// VI: Handler cho GetSchedulesByShopQuery.
+
+using BookingService.API.Application.DTOs;
+using BookingService.Infrastructure.Repositories;
+using MediatR;
+
+namespace BookingService.API.Application.Queries;
+
+public class GetSchedulesByShopQueryHandler : IRequestHandler<GetSchedulesByShopQuery, List<StaffScheduleDto>>
+{
+    private readonly IStaffScheduleRepository _staffScheduleRepository;
+
+    public GetSchedulesByShopQueryHandler(IStaffScheduleRepository staffScheduleRepository)
+    {
+        _staffScheduleRepository = staffScheduleRepository ?? throw new ArgumentNullException(nameof(staffScheduleRepository));
+    }
+
+    public async Task<List<StaffScheduleDto>> Handle(GetSchedulesByShopQuery request, CancellationToken cancellationToken)
+    {
+        var schedules = await _staffScheduleRepository.GetByShopIdAsync(request.ShopId, cancellationToken);
+
+        return schedules.Select(s => new StaffScheduleDto
+        {
+            Id = s.Id,
+            StaffId = s.StaffId,
+            ShopId = s.ShopId,
+            DayOfWeek = s.DayOfWeek,
+            StartTime = s.StartTime,
+            EndTime = s.EndTime
+        }).ToList();
+    }
+}

services/booking-service-net/src/BookingService.API/Controllers/SchedulesController.cs

@@ -0,0 +1,47 @@
+// EN: Schedules Controller - Shop-wide staff schedule queries.
+// VI: Controller Schedules - Truy vấn lịch làm việc nhân viên theo shop.
+
+using Asp.Versioning;
+using BookingService.API.Application.DTOs;
+using BookingService.API.Application.Queries;
+using BookingService.API.Models.Responses;
+using MediatR;
+using Microsoft.AspNetCore.Mvc;
+
+namespace BookingService.API.Controllers;
+
+[ApiController]
+[ApiVersion("1.0")]
+[Route("api/v{version:apiVersion}/schedules")]
+[Produces("application/json")]
+public class SchedulesController : ControllerBase
+{
+    private readonly IMediator _mediator;
+    private readonly ILogger<SchedulesController> _logger;
+
+    public SchedulesController(IMediator mediator, ILogger<SchedulesController> logger)
+    {
+        _mediator = mediator ?? throw new ArgumentNullException(nameof(mediator));
+        _logger = logger ?? throw new ArgumentNullException(nameof(logger));
+    }
+
+    /// <summary>
+    /// EN: Get all staff schedules for a shop.
+    /// VI: Lấy tất cả lịch làm việc nhân viên cho một shop.
+    /// </summary>
+    [HttpGet]
+    [ProducesResponseType(typeof(ApiResponse<List<StaffScheduleDto>>), StatusCodes.Status200OK)]
+    [ProducesResponseType(StatusCodes.Status400BadRequest)]
+    public async Task<ActionResult<ApiResponse<List<StaffScheduleDto>>>> GetSchedulesByShop(
+        [FromQuery] Guid shopId,
+        CancellationToken cancellationToken = default)
+    {
+        if (shopId == Guid.Empty)
+            return BadRequest(ApiResponse<List<StaffScheduleDto>>.Fail("Shop ID is required"));
+
+        var query = new GetSchedulesByShopQuery(shopId);
+        var result = await _mediator.Send(query, cancellationToken);
+
+        return Ok(ApiResponse<List<StaffScheduleDto>>.Ok(result));
+    }
+}

services/booking-service-net/src/BookingService.Infrastructure/Repositories/IStaffScheduleRepository.cs

@@ -14,4 +14,5 @@ public interface IStaffScheduleRepository
     void Remove(StaffSchedule schedule);
     Task<List<StaffSchedule>> GetByStaffIdAsync(Guid staffId, Guid shopId, CancellationToken cancellationToken = default);
     Task<List<StaffSchedule>> GetByShopIdAndDayAsync(Guid shopId, int dayOfWeek, CancellationToken cancellationToken = default);
+    Task<List<StaffSchedule>> GetByShopIdAsync(Guid shopId, CancellationToken cancellationToken = default);
 }

services/booking-service-net/src/BookingService.Infrastructure/Repositories/StaffScheduleRepository.cs

@@ -46,4 +46,13 @@ public class StaffScheduleRepository : IStaffScheduleRepository
             .Where(s => s.ShopId == shopId && s.DayOfWeek == dayOfWeek)
             .ToListAsync(cancellationToken);
     }
+
+    public async Task<List<StaffSchedule>> GetByShopIdAsync(Guid shopId, CancellationToken cancellationToken = default)
+    {
+        return await _context.StaffSchedules
+            .Where(s => s.ShopId == shopId)
+            .OrderBy(s => s.StaffId)
+            .ThenBy(s => s.DayOfWeek)
+            .ToListAsync(cancellationToken);
+    }
 }