AX Agent 도구·스킬 정합성 재구성 및 실행 품질 보강

변경 목적:
- AX Agent의 도구 이름, 내부 설정, 스킬 정책, 실행 루프 사이의 불일치를 줄이고 전체 동작 품질을 높인다.
- claw-code 수준의 일관된 동작 품질을 참고하되 AX 구조에 맞는 고유한 카탈로그·정규화 레이어로 재구성한다.

핵심 수정사항:
- 도구 canonical id, legacy alias, 탭 노출, 설정 카테고리, read-only 분류를 중앙 카탈로그로 통합했다.
- ToolRegistry, AgentLoopService, 병렬 실행 분류, 권한 처리, 훅 처리, 스킬 allowed-tools 해석이 같은 이름 체계를 사용하도록 정리했다.
- Agent 설정/일반 설정/도움말의 도구 카드와 훅 편집기, 스킬 설명을 현재 런타임 구조에 맞게 갱신했다.
- 컨텍스트 압축, intent gate, spawn agents, session learning, model prompt adapter, workspace context 관련 변경과 테스트 추가를 함께 반영했다.
- 문서 이력과 비교/로드맵 문서를 최신 상태로 갱신했다.

검증 결과:
- dotnet build src/AxCopilot/AxCopilot.csproj -c Release -v minimal -p:OutputPath=bin\verify_toolcat\ -p:IntermediateOutputPath=obj\verify_toolcat\ : 경고 0 / 오류 0
- dotnet test src/AxCopilot.Tests/AxCopilot.Tests.csproj -c Release -v minimal --filter AgentToolCatalogTests -p:OutputPath=bin\verify_toolcat_tests\ -p:IntermediateOutputPath=obj\verify_toolcat_tests\ : 통과 8

src/AxCopilot/Views/ToolApprovalWindow.cs

@@ -19,7 +19,7 @@ internal sealed class ToolApprovalWindow : Window
 
     private ToolApprovalWindow(string message, List<string> options)
     {
-        Width = 480;
+        Width = 500;
         MinWidth = 400;
         MaxWidth = 600;
         SizeToContent = SizeToContent.Height;
@@ -40,6 +40,10 @@ internal sealed class ToolApprovalWindow : Window
         var border = Application.Current.TryFindResource("BorderColor") as Brush ?? Brushes.Gray;
         var itemBg = Application.Current.TryFindResource("ItemBackground") as Brush
                      ?? new SolidColorBrush(Color.FromRgb(0x2A, 0x2B, 0x40));
+        var errorBrush = Application.Current.TryFindResource("ErrorColor") as Brush
+                         ?? new SolidColorBrush(Color.FromRgb(0xDC, 0x26, 0x26));
+        var hoverBg = Application.Current.TryFindResource("ItemHoverBackground") as Brush
+                      ?? new SolidColorBrush(Color.FromArgb(0x20, 0xFF, 0xFF, 0xFF));
 
         var root = new Border
         {
@@ -108,7 +112,7 @@ internal sealed class ToolApprovalWindow : Window
             },
         };
         close.MouseLeftButtonUp += (_, _) => { _result = "취소"; Close(); };
-        close.MouseEnter += (_, _) => close.Background = new SolidColorBrush(Color.FromArgb(0x20, 0xFF, 0xFF, 0xFF));
+        close.MouseEnter += (_, _) => close.Background = hoverBg;
         close.MouseLeave += (_, _) => close.Background = Brushes.Transparent;
         header.Children.Add(close);
         stack.Children.Add(header);
@@ -117,7 +121,7 @@ internal sealed class ToolApprovalWindow : Window
         var msgBorder = new Border
         {
             Background = itemBg,
-            CornerRadius = new CornerRadius(10),
+            CornerRadius = new CornerRadius(12),
             Padding = new Thickness(14, 11, 14, 11),
             Margin = new Thickness(0, 0, 0, 14),
         };
@@ -125,11 +129,11 @@ internal sealed class ToolApprovalWindow : Window
         var msgText = new TextBlock
         {
             Text = message,
-            FontSize = 12.5,
+            FontSize = 13,
             FontFamily = new FontFamily("Segoe UI"),
             Foreground = primary,
             TextWrapping = TextWrapping.Wrap,
-            LineHeight = 19,
+            LineHeight = 20,
         };
         msgBorder.Child = msgText;
         stack.Children.Add(msgBorder);
@@ -143,7 +147,7 @@ internal sealed class ToolApprovalWindow : Window
 
         foreach (var option in options)
         {
-            var btn = CreateOptionButton(option, primary, secondary, accent, bg);
+            var btn = CreateOptionButton(option, primary, secondary, accent, bg, errorBrush);
             btn.MouseLeftButtonUp += (_, _) => { _result = option; Close(); };
             btnPanel.Children.Add(btn);
         }
@@ -182,7 +186,7 @@ internal sealed class ToolApprovalWindow : Window
         };
     }
 
-    private Border CreateOptionButton(string label, Brush primary, Brush secondary, Brush accent, Brush bg)
+    private Border CreateOptionButton(string label, Brush primary, Brush secondary, Brush accent, Brush bg, Brush errorBrush)
     {
         Brush foreground, background, borderBrush;
         switch (label)
@@ -195,9 +199,9 @@ internal sealed class ToolApprovalWindow : Window
                 break;
             case "취소":
             case "중단":
-                foreground = new SolidColorBrush(Color.FromRgb(0xDC, 0x26, 0x26));
+                foreground = errorBrush;
                 background = Brushes.Transparent;
-                borderBrush = new SolidColorBrush(Color.FromRgb(0xDC, 0x26, 0x26));
+                borderBrush = errorBrush;
                 break;
             default:
                 foreground = primary;
@@ -206,18 +210,26 @@ internal sealed class ToolApprovalWindow : Window
                 break;
         }
 
-        var btn = new Border
+        var isDestructive = label == "취소" || label == "중단";
+
+        // Build inner content: optional left accent bar + label
+        FrameworkElement child;
+        if (isDestructive)
         {
-            MinWidth = 70,
-            Height = 32,
-            CornerRadius = new CornerRadius(8),
-            Background = background,
-            BorderBrush = borderBrush,
-            BorderThickness = new Thickness(1),
-            Padding = new Thickness(14, 0, 14, 0),
-            Margin = new Thickness(6, 0, 0, 0),
-            Cursor = Cursors.Hand,
-            Child = new TextBlock
+            var grid = new Grid();
+            grid.ColumnDefinitions.Add(new ColumnDefinition { Width = GridLength.Auto });
+            grid.ColumnDefinitions.Add(new ColumnDefinition { Width = new GridLength(1, GridUnitType.Star) });
+            var accentBar = new Border
+            {
+                Width = 4,
+                CornerRadius = new CornerRadius(2),
+                Background = errorBrush,
+                Margin = new Thickness(0, 4, 8, 4),
+                VerticalAlignment = VerticalAlignment.Stretch,
+            };
+            Grid.SetColumn(accentBar, 0);
+            grid.Children.Add(accentBar);
+            var txt = new TextBlock
             {
                 Text = label,
                 FontSize = 12,
@@ -225,7 +237,36 @@ internal sealed class ToolApprovalWindow : Window
                 Foreground = foreground,
                 HorizontalAlignment = HorizontalAlignment.Center,
                 VerticalAlignment = VerticalAlignment.Center,
-            },
+            };
+            Grid.SetColumn(txt, 1);
+            grid.Children.Add(txt);
+            child = grid;
+        }
+        else
+        {
+            child = new TextBlock
+            {
+                Text = label,
+                FontSize = 12,
+                FontWeight = FontWeights.SemiBold,
+                Foreground = foreground,
+                HorizontalAlignment = HorizontalAlignment.Center,
+                VerticalAlignment = VerticalAlignment.Center,
+            };
+        }
+
+        var btn = new Border
+        {
+            MinWidth = 84,
+            Height = 36,
+            CornerRadius = new CornerRadius(10),
+            Background = background,
+            BorderBrush = borderBrush,
+            BorderThickness = new Thickness(1),
+            Padding = new Thickness(14, 0, 14, 0),
+            Margin = new Thickness(10, 0, 0, 0),
+            Cursor = Cursors.Hand,
+            Child = child,
         };
 
         btn.MouseEnter += (_, _) => btn.Opacity = 0.85;
@@ -236,6 +277,13 @@ internal sealed class ToolApprovalWindow : Window
 
     /// <summary>도구 승인 다이얼로그를 표시하고 결과를 반환합니다.</summary>
     internal static string? Show(Window? owner, string message, List<string> options)
+        => Show(owner, message, options, CancellationToken.None);
+
+    /// <summary>
+    /// 도구 승인 다이얼로그를 표시합니다. cancellationToken이 트리거되면 창을 자동으로 닫고 null을 반환합니다.
+    /// 장시간 미응답 시 타임아웃으로 에이전트 루프가 멈추는 것을 방지하기 위해 사용합니다.
+    /// </summary>
+    internal static string? Show(Window? owner, string message, List<string> options, CancellationToken cancellationToken)
     {
         var dialog = new ToolApprovalWindow(message, options);
         if (owner != null && IsWindowAlive(owner))
@@ -244,7 +292,29 @@ internal sealed class ToolApprovalWindow : Window
             dialog.Owner = owner;
         }
 
-        dialog.ShowDialog();
+        CancellationTokenRegistration reg = default;
+        if (cancellationToken.CanBeCanceled)
+        {
+            reg = cancellationToken.Register(() =>
+            {
+                // UI 스레드에서 안전하게 닫기
+                dialog.Dispatcher.BeginInvoke(new Action(() =>
+                {
+                    try { if (dialog.IsVisible) dialog.Close(); }
+                    catch { /* 이미 닫혀있거나 파괴 중 — 무시 */ }
+                }));
+            });
+        }
+
+        try
+        {
+            dialog.ShowDialog();
+        }
+        finally
+        {
+            reg.Dispose();
+        }
+
         return dialog._result;
     }