Add action gathering functionality: implement ActionGathered model and repository, update Pet model and services, and enhance GameItemsRepository with item retrieval methods.

Services/PetActionBackgroundService.cs

@@ -0,0 +1,26 @@
+namespace PetCompanion.Services
+{
+    public class PetActionBackgroundService : BackgroundService
+    {
+        private readonly IServiceProvider _serviceProvider;
+
+        public PetActionBackgroundService(IServiceProvider serviceProvider)
+        {
+            _serviceProvider = serviceProvider;
+        }
+
+        protected override async Task ExecuteAsync(CancellationToken stoppingToken)
+        {
+            while (!stoppingToken.IsCancellationRequested)
+            {
+                using (var scope = _serviceProvider.CreateScope())
+                {
+                    var petActionService = scope.ServiceProvider.GetRequiredService<PetActionService>();
+                    petActionService.LoopPetActions();
+                }
+
+                await Task.Delay(TimeSpan.FromMinutes(1), stoppingToken);
+            }
+        }
+    }
+}