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

Models/PetClassInfo.cs

@@ -5,8 +5,25 @@ namespace pet_companion_api.Models
     {
         public string Name { get; set; }
         public string Description { get; set; }
-        public string[] Modifiers { get; set; }
+        public List<Modifier> Modifiers { get; set; }
         public string Color { get; set; }
         public string Emoji { get; set; }
+        public PetClass Class { get; set; }
+    }
+
+    public class Modifier
+    {
+        public string Description { get; set; }
+
+        /// <summary>
+        /// Other property (unused atm)
+        /// </summary>
+        public string? Misc { get; set; }
+
+        /// <summary>
+        /// Either `intelligence`, `strength` or `charisma`
+        /// </summary>
+        public string? Attribute { get; set; } // The attribute that the modifier affects (used by reflection)
+        public float? Value { get; set; }
     }
 }