(Feat) add crafting discovery + notification + inventory tool tips

Assets/GAME/Script/Crafting/IngredientSlotUI.cs

@@ -5,21 +5,45 @@ using Ashwild.Inventory;
 
 namespace Ashwild.Crafting
 {
+    /// <summary>
+    /// A single ingredient cell in the crafting detail panel. Renders either a known ingredient
+    /// (icon + required quantity, tinted by whether the player has enough) or a mystery placeholder
+    /// ("?") for an ingredient the player has not discovered yet.
+    /// </summary>
     public class IngredientSlotUI : MonoBehaviour
     {
         [SerializeField] private Image iconImage;
         [SerializeField] private TextMeshProUGUI quantityText;
 
+        [Header("Mystery (undiscovered ingredient)")]
+        [Tooltip("Icon shown for an ingredient the player hasn't discovered yet (a question mark).")]
+        [SerializeField] private Sprite mysteryIcon;
+
         [Header("Colors")]
         [SerializeField] private Color enoughColor = Color.white;
         [SerializeField] private Color missingColor = new Color(1f, 0.3f, 0.3f, 1f);
 
+        /// <summary>
+        /// Renders a known ingredient: its icon and required amount, dimmed/red when the player lacks it.
+        /// </summary>
         public void Setup(ItemData item, int required, int playerHas)
         {
+            quantityText.gameObject.SetActive(true);
             iconImage.sprite = item.Icon;
             quantityText.text = "x" + required;
             quantityText.color = playerHas >= required ? enoughColor : missingColor;
             iconImage.color = playerHas >= required ? Color.white : new Color(1f, 1f, 1f, 0.5f);
         }
+
+        /// <summary>
+        /// Renders an undiscovered ingredient as a mystery: the "?" icon with no quantity text, so the
+        /// player knows a craft exists but must still find what it needs and how much.
+        /// </summary>
+        public void SetupMystery()
+        {
+            iconImage.sprite = mysteryIcon;
+            iconImage.color = new Color(1f, 1f, 1f, 0.5f);
+            quantityText.gameObject.SetActive(false);
+        }
     }
 }