[Update] Split CategoryRowView scoreText into preview and recorded fields

Separate the single scoreText into previewText (potential score) and
recordedScoreText (committed value) so both are visible simultaneously.
Public API preserved — no changes needed in ScoreCardView or GameController.

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

Assets/Scripts/UI/CategoryRowView.cs

@@ -7,7 +7,8 @@ public sealed class CategoryRowView : MonoBehaviour
 {
     [Header("UI Elements")]
     [SerializeField] private TMP_Text categoryNameText;
-    [SerializeField] private TMP_Text scoreText;
+    [SerializeField] private TMP_Text previewText;
+    [SerializeField] private TMP_Text recordedScoreText;
     [SerializeField] private Button selectButton;
     [SerializeField] private Image background;
 
@@ -27,7 +28,8 @@ public sealed class CategoryRowView : MonoBehaviour
         category = cat;
         isUsed = false;
         categoryNameText.text = displayName;
-        scoreText.text = "";
+        previewText.text = "";
+        recordedScoreText.text = "-";
         selectButton.onClick.AddListener(HandleClick);
         SetInteractable(false);
         background.color = normalColor;
@@ -36,21 +38,22 @@ public sealed class CategoryRowView : MonoBehaviour
     public void ShowPreview(int previewScore)
     {
         if (isUsed) return;
-        scoreText.text = previewScore.ToString();
+        previewText.text = previewScore.ToString();
         background.color = previewScore > 0 ? previewPositiveColor : previewZeroColor;
     }
 
     public void HidePreview()
     {
         if (isUsed) return;
-        scoreText.text = "";
+        previewText.text = "";
         background.color = normalColor;
     }
 
     public void SetRecordedScore(int score)
     {
         isUsed = true;
-        scoreText.text = score.ToString();
+        recordedScoreText.text = score.ToString();
+        previewText.text = "";
         SetInteractable(false);
         background.color = usedColor;
     }
@@ -68,7 +71,8 @@ public sealed class CategoryRowView : MonoBehaviour
     public void ResetRow()
     {
         isUsed = false;
-        scoreText.text = "";
+        previewText.text = "";
+        recordedScoreText.text = "-";
         SetInteractable(false);
         background.color = normalColor;
     }