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

Repositories/ActionGatheredRepository.cs

@@ -0,0 +1,47 @@
+using PetCompanion.Data;
+using PetCompanion.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace PetCompanion.Repositories
+{
+    public class ActionGatheredRepository
+    {
+        private readonly ApplicationDbContext _context;
+
+        public ActionGatheredRepository(ApplicationDbContext context)
+        {
+            _context = context;
+        }
+
+        public IEnumerable<ActionGathered> GetAllActionGatheredByPetId(string petId)
+        {
+            return _context.ActionGathered
+                .Where(ag => ag.PetId == petId)
+                .Include(ag => ag.GameItem)
+                .ToList();
+        }
+
+        public ActionGathered CreateActionGathered(ActionGathered actionGathered)
+        {
+            var entry = _context.ActionGathered.Add(actionGathered);
+            _context.SaveChanges();
+            return entry.Entity;
+        }
+
+        public ActionGathered UpdateActionGathered(ActionGathered actionGathered)
+        {
+            var entry = _context.ActionGathered.Update(actionGathered);
+            _context.SaveChanges();
+            return entry.Entity;
+        }
+
+        public void DeleteAllActionGatheredByPetId(string petId)
+        {
+            var actionsToDelete = _context.ActionGathered
+                .Where(ag => ag.PetId == petId);
+
+            _context.ActionGathered.RemoveRange(actionsToDelete);
+            _context.SaveChanges();
+        }
+    }
+}