Add ReadProfileViewQuery and handler for profile views

Introduce CQRS/MediatR query and handler to fetch ProfileView by Id,
optionally including related Actions. Uses repository and AutoMapper,
throws NotFoundException if profile is missing, and returns ProfileViewDto.

src/ReC.Application/Profile/Queries/ReadProfileViewQuery.cs

@@ -0,0 +1,33 @@
+using AutoMapper;
+using DigitalData.Core.Abstraction.Application.Repository;
+using DigitalData.Core.Exceptions;
+using MediatR;
+using Microsoft.EntityFrameworkCore;
+using ReC.Application.Common.Dto;
+using ReC.Domain.Views;
+
+namespace ReC.Application.Profile.Queries;
+
+public record ReadProfileViewQuery : IRequest<ProfileViewDto>
+{
+    public long Id { get; init; }
+
+    public bool IncludeActions { get; init; } = true;
+}
+
+public class ReadProfileViewQueryHandler(IRepository<ProfileView> repo, IMapper mapper)
+    : IRequestHandler<ReadProfileViewQuery, ProfileViewDto>
+{
+    public async Task<ProfileViewDto> Handle(ReadProfileViewQuery request, CancellationToken cancel)
+    {
+        var query = request.IncludeActions
+            ? repo.Query.Include(p => p.Actions)
+            : repo.Query;
+
+        var profile = await query.SingleOrDefaultAsync(p => p.Id == request.Id, cancel);
+
+        return profile is null
+            ? throw new NotFoundException($"Profile {request.Id} not found.")
+            : mapper.Map<ProfileViewDto>(profile);
+    }
+}