add architecture skeleton

GymLogAI.Persistence/Repositories/WorkoutRepository.cs

@@ -0,0 +1,28 @@
+using GymLogAI.Application.Interfaces;
+using GymLogAI.Core.Entities;
+using Microsoft.EntityFrameworkCore;
+
+namespace GymLogAI.Persistence.Repositories;
+
+public sealed class WorkoutRepository(AppDbContext dbContext) : IWorkoutRepository
+{
+    public async Task<Workout> AddAsync(Workout workout, CancellationToken cancellationToken)
+    {
+        dbContext.Workouts.Add(workout);
+        await dbContext.SaveChangesAsync(cancellationToken);
+        return workout;
+    }
+
+    public async Task<IReadOnlyCollection<Workout>> GetHistoryAsync(Guid userId, CancellationToken cancellationToken)
+    {
+        return await dbContext.Workouts
+            .AsNoTracking()
+            .Include(x => x.WorkoutExercises)
+            .ThenInclude(x => x.Exercise)
+            .Include(x => x.WorkoutExercises)
+            .ThenInclude(x => x.Sets)
+            .Where(x => x.UserId == userId)
+            .OrderByDescending(x => x.PerformedAtUtc)
+            .ToListAsync(cancellationToken);
+    }
+}