Refactor pet action management: rename PetAction to PetActionGather, update related models and services, and enhance resource gathering logic.

Program.cs

@@ -26,6 +26,8 @@ namespace pet_companion_api
             builder.Services.AddDbContext<ApplicationDbContext>(options =>
                 options.UseSqlite(connectionString));
 
+            builder.Services.AddScoped<PetClassRepository>();
+            builder.Services.AddScoped<PetClassService>();
             builder.Services.AddScoped<PetRepository>();
             builder.Services.AddScoped<PetService>();