[Add] Universal modifier system, shop, inventory & persistence

Replace hardcoded BonusForOnes/MultiplierForSixes with data-driven
modifier system supporting 2 scopes (SelectedCategory, AnyCategoryClosed),
4 effect types, durability modes (Permanent, LimitedUses), and
configurable targets via ScriptableObject (ModifierData).

- Modifier domain: ModifierEnums, ModifierTarget, ModifierData,
  ModifierRuntime, ModifierEffect (dict-based strategy), ModifierPipeline
  (4-pass: cat-additive → cat-multiplicative → final-additive → final-multiplicative)
- ScoringSystem: replaced old modifier list with ModifierPipeline integration,
  added OnCategoryConfirmed event
- Shop MVC: ShopCatalog (SO), ShopModel, ShopView, ShopItemView, ShopController
- Inventory MVC: InventoryModel (activate/deactivate/sell/durability),
  InventoryView, InventorySlotView, InventoryController
- CurrencyBank: editor-adjustable balance with events
- Persistence: SaveData + SaveSystem (Newtonsoft JSON + PlayerPrefs)
- Editor: ModifierAssetCreator menu item to generate 6 example modifiers + catalog
- Tests: 6 test classes covering effects, pipeline, scoring, shop, inventory, save
- GameController: wired shop/inventory/save lifecycle
- GameInfoView: added currency display, shop/inventory toggle buttons

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Assets/Scripts/UI/GameInfoView.cs

@@ -8,17 +8,31 @@ public sealed class GameInfoView : MonoBehaviour
     [Header("Turn Info")]
     [SerializeField] private TMP_Text turnText;
 
+    [Header("Currency")]
+    [SerializeField] private TMP_Text currencyText;
+
+    [Header("Navigation")]
+    [SerializeField] private Button shopButton;
+    [SerializeField] private Button inventoryButton;
+
     [Header("Game Over Overlay")]
     [SerializeField] private GameObject gameOverPanel;
     [SerializeField] private TMP_Text finalScoreText;
     [SerializeField] private Button newGameButton;
 
     public event Action OnNewGameClicked;
+    public event Action OnShopClicked;
+    public event Action OnInventoryClicked;
 
     private void Awake()
     {
         newGameButton.onClick.AddListener(() => OnNewGameClicked?.Invoke());
         gameOverPanel.SetActive(false);
+
+        if (shopButton != null)
+            shopButton.onClick.AddListener(() => OnShopClicked?.Invoke());
+        if (inventoryButton != null)
+            inventoryButton.onClick.AddListener(() => OnInventoryClicked?.Invoke());
     }
 
     public void SetTurnText(int turn, int maxTurns)
@@ -26,6 +40,12 @@ public sealed class GameInfoView : MonoBehaviour
         turnText.text = $"Ход {turn} / {maxTurns}";
     }
 
+    public void SetCurrencyText(int amount)
+    {
+        if (currencyText != null)
+            currencyText.text = amount.ToString();
+    }
+
     public void ShowGameOver(int finalScore)
     {
         gameOverPanel.SetActive(true);
@@ -40,5 +60,10 @@ public sealed class GameInfoView : MonoBehaviour
     private void OnDestroy()
     {
         newGameButton.onClick.RemoveAllListeners();
+
+        if (shopButton != null)
+            shopButton.onClick.RemoveAllListeners();
+        if (inventoryButton != null)
+            inventoryButton.onClick.RemoveAllListeners();
     }
 }