Add quick slot and consumables (health and mana potions)

src/core/config/Items.ts

@@ -0,0 +1,29 @@
+import type { Item } from "../types";
+
+export const ITEMS: Record<string, Item> = {
+  "health_potion": {
+    id: "health_potion",
+    name: "Health Potion",
+    type: "Consumable",
+    icon: "potion_red",
+    stats: {} // Special logic for usage
+  },
+  "iron_sword": {
+    id: "iron_sword",
+    name: "Iron Sword",
+    type: "Weapon",
+    icon: "sword_iron",
+    stats: {
+      attack: 2
+    }
+  },
+  "leather_armor": {
+    id: "leather_armor",
+    name: "Leather Armor",
+    type: "BodyArmour",
+    icon: "armor_leather",
+    stats: {
+      defense: 2
+    }
+  }
+};