에이전트 선택적 탐색 구조 개선과 경고 정리 반영

- claude-code 선택적 탐색 흐름을 참고해 Cowork/Code 시스템 프롬프트에서 folder_map 상시 선행 지시를 완화하고 glob/grep 기반 좁은 탐색을 우선하도록 조정함

- FolderMapTool 기본 depth를 2로, include_files 기본값을 false로 낮추고 MultiReadTool 최대 파일 수를 8개로 줄여 초기 과탐색 폭을 보수적으로 조정함

- AgentLoopExplorationPolicy partial을 추가해 탐색 범위 분류, broad-scan corrective hint, exploration_breadth 성능 로그를 연결함

- AgentLoopService에 탐색 범위 가이드 주입과 실행 중 탐색 폭 추적을 추가하고, 좁은 질문에서 반복적인 folder_map/대량 multi_read를 교정하도록 정리함

- DocxToHtmlConverter nullable 경고를 수정해 Release 빌드 경고 0 / 오류 0 기준을 다시 충족함

- README와 docs/DEVELOPMENT.md에 2026-04-09 10:36 (KST) 기준 개발 이력을 반영함

src/AxCopilot/Views/ChatWindow.PermissionPresentation.cs

@@ -14,9 +14,91 @@ namespace AxCopilot.Views;
 
 public partial class ChatWindow
 {
+    // ── A-2: PermissionItems 이벤트 위임 ──
+    private bool _permPanelDelegationInitialized;
+
+    private sealed class PermissionItemTag
+    {
+        public required string Level { get; init; }
+        public required bool IsActive { get; init; }
+        public required Brush SelectedBackground { get; init; }
+        public required Brush HoverBackground { get; init; }
+    }
+
+    private void InitPermissionPanelDelegation()
+    {
+        if (_permPanelDelegationInitialized || PermissionItems == null)
+            return;
+        _permPanelDelegationInitialized = true;
+
+        PermissionItems.MouseMove += PermissionItems_DelegatedMouseMove;
+        PermissionItems.MouseLeave += PermissionItems_DelegatedMouseLeave;
+        PermissionItems.PreviewMouseLeftButtonDown += PermissionItems_DelegatedLeftButtonDown;
+        PermissionItems.PreviewKeyDown += PermissionItems_DelegatedKeyDown;
+    }
+
+    private Border? _lastHoveredPermBorder;
+
+    private void PermissionItems_DelegatedMouseMove(object sender, MouseEventArgs e)
+    {
+        var border = FindAncestorWithTag<Border>(e.OriginalSource as DependencyObject);
+        if (ReferenceEquals(border, _lastHoveredPermBorder))
+            return;
+
+        if (_lastHoveredPermBorder?.Tag is PermissionItemTag prevTag)
+            _lastHoveredPermBorder.Background = prevTag.IsActive ? prevTag.SelectedBackground : Brushes.Transparent;
+        _lastHoveredPermBorder = border;
+
+        if (border?.Tag is PermissionItemTag tag)
+            border.Background = tag.IsActive ? tag.SelectedBackground : tag.HoverBackground;
+    }
+
+    private void PermissionItems_DelegatedMouseLeave(object sender, MouseEventArgs e)
+    {
+        if (_lastHoveredPermBorder?.Tag is PermissionItemTag prevTag)
+            _lastHoveredPermBorder.Background = prevTag.IsActive ? prevTag.SelectedBackground : Brushes.Transparent;
+        _lastHoveredPermBorder = null;
+    }
+
+    private void PermissionItems_DelegatedLeftButtonDown(object sender, MouseButtonEventArgs e)
+    {
+        var border = FindAncestorWithTag<Border>(e.OriginalSource as DependencyObject);
+        if (border?.Tag is PermissionItemTag tag)
+        {
+            e.Handled = true;
+            ApplyPermissionLevel(tag.Level);
+        }
+    }
+
+    private void PermissionItems_DelegatedKeyDown(object sender, KeyEventArgs e)
+    {
+        if (e.Key is not (Key.Enter or Key.Space))
+            return;
+        var border = FindAncestorWithTag<Border>(e.OriginalSource as DependencyObject);
+        if (border?.Tag is PermissionItemTag tag)
+        {
+            e.Handled = true;
+            ApplyPermissionLevel(tag.Level);
+        }
+    }
+
+    private void ApplyPermissionLevel(string level)
+    {
+        _settings.Settings.Llm.FilePermission = PermissionModeCatalog.NormalizeGlobalMode(level);
+        try { _settings.Save(); } catch { }
+        _appState.LoadFromSettings(_settings);
+        UpdatePermissionUI();
+        SaveConversationSettings();
+        RefreshInlineSettingsPanel();
+        RefreshOverlayModeButtons();
+        PermissionPopup.IsOpen = false;
+    }
+
     private void BtnPermission_Click(object sender, RoutedEventArgs e)
     {
         if (PermissionPopup == null) return;
+        InitPermissionPanelDelegation();
+        _lastHoveredPermBorder = null;
         PermissionItems.Children.Clear();
 
         ChatConversation? currentConversation;
@@ -96,30 +178,14 @@ public partial class ChatWindow
                 row.Children.Add(check);
 
                 rowBorder.Child = row;
-                rowBorder.MouseEnter += (_, _) => rowBorder.Background = isActive ? selectedBackground : hoverBackground;
-                rowBorder.MouseLeave += (_, _) => rowBorder.Background = isActive ? selectedBackground : Brushes.Transparent;
 
-                var capturedLevel = level;
-                void ApplyPermission()
+                // A-2: 이벤트 위임 — 개별 람다 대신 Tag에 메타 저장
+                rowBorder.Tag = new PermissionItemTag
                 {
-                    _settings.Settings.Llm.FilePermission = PermissionModeCatalog.NormalizeGlobalMode(capturedLevel);
-                    try { _settings.Save(); } catch { }
-                    _appState.LoadFromSettings(_settings);
-                    UpdatePermissionUI();
-                    SaveConversationSettings();
-                    RefreshInlineSettingsPanel();
-                    RefreshOverlayModeButtons();
-                    PermissionPopup.IsOpen = false;
-                }
-
-                rowBorder.MouseLeftButtonDown += (_, _) => ApplyPermission();
-                rowBorder.KeyDown += (_, ke) =>
-                {
-                    if (ke.Key is Key.Enter or Key.Space)
-                    {
-                        ke.Handled = true;
-                        ApplyPermission();
-                    }
+                    Level = level,
+                    IsActive = isActive,
+                    SelectedBackground = selectedBackground,
+                    HoverBackground = hoverBackground,
                 };
 
                 container.Children.Add(rowBorder);