재구성 AX Agent 설정과 채팅 UI를 Claude형 구조로

src/AxCopilot/Views/ChatWindow.xaml.cs

@@ -15,6 +15,7 @@ namespace AxCopilot.Views;
 /// <summary>AX Agent 창. 데스크톱 코파일럿 스타일 — 사이드바 + 카테고리 분류 + 타임라인.</summary>
 public partial class ChatWindow : Window
 {
+    private const string UnifiedAdminPassword = "axgo123!";
     private readonly SettingsService _settings;
     private readonly ChatStorageService _storage;
     private readonly DraftQueueProcessorService _draftQueueProcessor = new();
@@ -76,7 +77,7 @@ public partial class ChatWindow : Window
     private readonly DispatcherTimer _typingTimer;
     private int _displayedLength; // 현재 화면에 표시된 글자 수
     private ResourceDictionary? _agentThemeDictionary;
-    private AgentSettingsWindow? _agentSettingsWindow;
+    private bool _isOverlaySettingsSyncing;
 
     private sealed class ConversationMeta
     {
@@ -984,6 +985,15 @@ public partial class ChatWindow : Window
         ApplyAgentThemeResources();
         ApplyExpressionLevelUi();
         ApplySidebarStateForActiveTab(animated: false);
+        if (CurrentTabTitle != null)
+        {
+            CurrentTabTitle.Text = _activeTab switch
+            {
+                "Cowork" => "AX Agent · Cowork",
+                "Code" => "AX Agent · Code",
+                _ => "AX Agent · Chat",
+            };
+        }
 
         // 폴더 바는 Cowork/Code 탭에서만 표시
         if (FolderBar != null)
@@ -1892,9 +1902,9 @@ public partial class ChatWindow : Window
                     return button;
                 }
 
-                actionRow.Children.Add(CreateActionButton("활용하지 않음", "#FEF2F2", "#991B1B", () => SetToolPermissionOverride(latestDenied.ToolName!, PermissionModeCatalog.Deny)));
-                actionRow.Children.Add(CreateActionButton("소극 활용", "#EEF2FF", "#1D4ED8", () => SetToolPermissionOverride(latestDenied.ToolName!, PermissionModeCatalog.Default)));
-                actionRow.Children.Add(CreateActionButton("적극 활용", "#ECFDF5", "#166534", () => SetToolPermissionOverride(latestDenied.ToolName!, PermissionModeCatalog.AcceptEdits)));
+                actionRow.Children.Add(CreateActionButton("읽기 전용", "#FEF2F2", "#991B1B", () => SetToolPermissionOverride(latestDenied.ToolName!, PermissionModeCatalog.Deny)));
+                actionRow.Children.Add(CreateActionButton("권한 요청", "#EEF2FF", "#1D4ED8", () => SetToolPermissionOverride(latestDenied.ToolName!, PermissionModeCatalog.Default)));
+                actionRow.Children.Add(CreateActionButton("편집 자동 승인", "#ECFDF5", "#166534", () => SetToolPermissionOverride(latestDenied.ToolName!, PermissionModeCatalog.AcceptEdits)));
                 actionRow.Children.Add(CreateActionButton("예외 해제", "#F3F4F6", "#374151", () => SetToolPermissionOverride(latestDenied.ToolName!, null)));
                 deniedStack.Children.Add(actionRow);
             }
@@ -2117,7 +2127,6 @@ public partial class ChatWindow : Window
         BtnPermission_Click(this, new RoutedEventArgs());
     }
 
-    private bool _permissionTopBannerDismissed; // 상단 권한 배너 닫힘 상태
     private string _lastPermissionBannerMode = "";
 
     private bool GetPermissionPopupSectionExpanded(string sectionKey, bool defaultValue = false)
@@ -2137,7 +2146,6 @@ public partial class ChatWindow : Window
 
     private void BtnPermissionTopBannerClose_Click(object sender, RoutedEventArgs e)
     {
-        _permissionTopBannerDismissed = true;
         if (PermissionTopBanner != null)
             PermissionTopBanner.Visibility = Visibility.Collapsed;
     }
@@ -2167,7 +2175,6 @@ public partial class ChatWindow : Window
 
         if (!string.Equals(_lastPermissionBannerMode, perm, StringComparison.OrdinalIgnoreCase))
         {
-            _permissionTopBannerDismissed = false;
             _lastPermissionBannerMode = perm;
         }
 
@@ -2182,10 +2189,10 @@ public partial class ChatWindow : Window
                 PermissionTopBanner.BorderBrush = BrushFromHex("#86EFAC");
                 PermissionTopBannerIcon.Text = "\uE73E";
                 PermissionTopBannerIcon.Foreground = activeColor;
-                PermissionTopBannerTitle.Text = "현재 권한 모드 · 적극 활용";
+                PermissionTopBannerTitle.Text = "현재 권한 모드 · 편집 자동 승인";
                 PermissionTopBannerTitle.Foreground = BrushFromHex("#166534");
-                PermissionTopBannerText.Text = "파일 편집 도구는 자동 승인하고, 명령 실행은 계속 확인합니다.";
-                PermissionTopBanner.Visibility = _permissionTopBannerDismissed ? Visibility.Collapsed : Visibility.Visible;
+                PermissionTopBannerText.Text = "모든 파일 편집을 자동 승인합니다. 명령 실행은 계속 확인합니다.";
+                PermissionTopBanner.Visibility = Visibility.Collapsed;
             }
         }
         else if (perm == PermissionModeCatalog.Deny)
@@ -2198,10 +2205,10 @@ public partial class ChatWindow : Window
                 PermissionTopBanner.BorderBrush = BrushFromHex("#86EFAC");
                 PermissionTopBannerIcon.Text = "\uE73E";
                 PermissionTopBannerIcon.Foreground = denyColor;
-                PermissionTopBannerTitle.Text = "현재 권한 모드 · 활용하지 않음";
+                PermissionTopBannerTitle.Text = "현재 권한 모드 · 읽기 전용";
                 PermissionTopBannerTitle.Foreground = denyColor;
                 PermissionTopBannerText.Text = "파일 읽기만 허용하고 생성/수정/삭제는 차단합니다.";
-                PermissionTopBanner.Visibility = _permissionTopBannerDismissed ? Visibility.Collapsed : Visibility.Visible;
+                PermissionTopBanner.Visibility = Visibility.Collapsed;
             }
         }
         else if (perm == PermissionModeCatalog.BypassPermissions)
@@ -2214,10 +2221,10 @@ public partial class ChatWindow : Window
                 PermissionTopBanner.BorderBrush = BrushFromHex("#FDBA74");
                 PermissionTopBannerIcon.Text = "\uE814";
                 PermissionTopBannerIcon.Foreground = autoColor;
-                PermissionTopBannerTitle.Text = "현재 권한 모드 · 완전 자동";
+                PermissionTopBannerTitle.Text = "현재 권한 모드 · 권한 건너뛰기";
                 PermissionTopBannerTitle.Foreground = autoColor;
-                PermissionTopBannerText.Text = "권한 확인을 대부분 생략합니다. 민감한 작업 전에는 설정을 다시 확인하세요.";
-                PermissionTopBanner.Visibility = _permissionTopBannerDismissed ? Visibility.Collapsed : Visibility.Visible;
+                PermissionTopBannerText.Text = "모든 권한을 허용합니다. 민감한 작업 전에는 설정을 다시 확인하세요.";
+                PermissionTopBanner.Visibility = Visibility.Collapsed;
             }
         }
         else if (perm == PermissionModeCatalog.DontAsk)
@@ -2233,7 +2240,7 @@ public partial class ChatWindow : Window
                 PermissionTopBannerTitle.Text = "현재 권한 모드 · 질문 없이 진행";
                 PermissionTopBannerTitle.Foreground = dangerColor;
                 PermissionTopBannerText.Text = "권한 확인을 거의 생략합니다. 민감한 작업 전에는 설정을 다시 확인하세요.";
-                PermissionTopBanner.Visibility = _permissionTopBannerDismissed ? Visibility.Collapsed : Visibility.Visible;
+                PermissionTopBanner.Visibility = Visibility.Collapsed;
             }
         }
         else
@@ -2253,20 +2260,20 @@ public partial class ChatWindow : Window
                     PermissionTopBanner.BorderBrush = BrushFromHex("#C7D2FE");
                     PermissionTopBannerIcon.Text = "\uE7C3";
                     PermissionTopBannerIcon.Foreground = BrushFromHex("#4338CA");
-                    PermissionTopBannerTitle.Text = "현재 권한 모드 · 계획 중심";
+                    PermissionTopBannerTitle.Text = "현재 권한 모드 · 계획 모드";
                     PermissionTopBannerTitle.Foreground = BrushFromHex("#4338CA");
-                    PermissionTopBannerText.Text = "쓰기 작업은 제한하고, 먼저 계획과 승인 흐름을 우선합니다.";
-                    PermissionTopBanner.Visibility = _permissionTopBannerDismissed ? Visibility.Collapsed : Visibility.Visible;
+                    PermissionTopBannerText.Text = "변경 전에 계획을 먼저 만들고 승인 흐름을 우선합니다.";
+                    PermissionTopBanner.Visibility = Visibility.Collapsed;
                 }
                 else if (perm == PermissionModeCatalog.Default)
                 {
                     PermissionTopBanner.BorderBrush = BrushFromHex("#BFDBFE");
                     PermissionTopBannerIcon.Text = "\uE8D7";
                     PermissionTopBannerIcon.Foreground = BrushFromHex("#1D4ED8");
-                    PermissionTopBannerTitle.Text = "현재 권한 모드 · 소극 활용";
+                    PermissionTopBannerTitle.Text = "현재 권한 모드 · 권한 요청";
                     PermissionTopBannerTitle.Foreground = BrushFromHex("#1D4ED8");
-                    PermissionTopBannerText.Text = "변경 전 확인하고, 필요한 경우에만 파일 접근을 진행합니다.";
-                    PermissionTopBanner.Visibility = _permissionTopBannerDismissed ? Visibility.Collapsed : Visibility.Visible;
+                    PermissionTopBannerText.Text = "변경하기 전에 항상 확인합니다.";
+                    PermissionTopBanner.Visibility = Visibility.Collapsed;
                 }
                 else
                 {
@@ -5667,8 +5674,20 @@ public partial class ChatWindow : Window
         if (!_slashVisibleItemByAbsoluteIndex.TryGetValue(_slashPalette.SelectedIndex, out var item))
             return;
 
-        var bounds = item.TransformToAncestor(SlashScrollViewer)
-            .TransformBounds(new Rect(0, 0, item.ActualWidth, item.ActualHeight));
+        if (!IsVisualDescendantOf(item, SlashScrollViewer))
+            return;
+
+        Rect bounds;
+        try
+        {
+            bounds = item.TransformToAncestor(SlashScrollViewer)
+                .TransformBounds(new Rect(0, 0, item.ActualWidth, item.ActualHeight));
+        }
+        catch
+        {
+            // 렌더 트리 갱신 중에는 transform이 실패할 수 있어 조용히 무시.
+            return;
+        }
 
         if (bounds.Top < 0)
             SlashScrollViewer.ScrollToVerticalOffset(SlashScrollViewer.VerticalOffset + bounds.Top - 8);
@@ -5676,6 +5695,22 @@ public partial class ChatWindow : Window
             SlashScrollViewer.ScrollToVerticalOffset(SlashScrollViewer.VerticalOffset + (bounds.Bottom - SlashScrollViewer.ViewportHeight) + 8);
     }
 
+    private static bool IsVisualDescendantOf(DependencyObject? child, DependencyObject? parent)
+    {
+        if (child == null || parent == null)
+            return false;
+
+        var current = child;
+        while (current != null)
+        {
+            if (ReferenceEquals(current, parent))
+                return true;
+            current = VisualTreeHelper.GetParent(current);
+        }
+
+        return false;
+    }
+
     private void UpdateSlashSelectionVisualState()
     {
         if (_slashVisibleItemByAbsoluteIndex.Count == 0)
@@ -12997,66 +13032,17 @@ public partial class ChatWindow : Window
 
     private void OpenAgentSettingsWindow()
     {
-        if (_agentSettingsWindow != null)
+        RefreshOverlaySettingsPanel();
+        AgentSettingsOverlay.Visibility = Visibility.Visible;
+        InlineSettingsPanel.Visibility = Visibility.Collapsed;
+        SetOverlaySection("common");
+        Dispatcher.BeginInvoke(() =>
         {
-            try
-            {
-                if (_agentSettingsWindow.IsVisible)
-                {
-                    _agentSettingsWindow.Activate();
-                    return;
-                }
-            }
-            catch
-            {
-                // ignore stale window instance
-            }
-            _agentSettingsWindow = null;
-        }
-
-        var win = new AgentSettingsWindow(_settings);
-        if (IsLoaded && IsVisible)
-            win.Owner = this;
-        _agentSettingsWindow = win;
-        win.Closed += (_, _) => _agentSettingsWindow = null;
-        try
-        {
-            win.Resources.MergedDictionaries.Insert(0, new ResourceDictionary
-            {
-                Source = BuildAgentThemeDictionaryUri(),
-            });
-        }
-        catch
-        {
-            // 테마 사전 로드 실패 시에도 설정창 자체는 열리도록 유지
-        }
-
-        bool changed;
-        try
-        {
-            changed = win.ShowDialog() == true;
-        }
-        catch
-        {
-            // 모달 창 오픈에 실패하면 일반 창으로라도 설정 접근을 보장
-            try
-            {
-                win.Show();
-                win.Activate();
-            }
-            catch { }
-            return;
-        }
-        if (!changed)
-            return;
-
-        _appState.LoadFromSettings(_settings);
-        ApplyAgentThemeResources();
-        UpdateSidebarModeMenu();
-        UpdateModelLabel();
-        RefreshInlineSettingsPanel();
-        UpdateTabUI();
-        ShowToast("AX Agent 설정이 저장되었습니다.");
+            if (CmbOverlayModel.Items.Count > 0)
+                CmbOverlayModel.Focus();
+            else
+                InputBox.Focus();
+        }, DispatcherPriority.Input);
     }
 
     public void OpenAgentSettingsFromExternal()
@@ -13069,6 +13055,515 @@ public partial class ChatWindow : Window
         }, DispatcherPriority.Input);
     }
 
+    private void BtnOverlaySettingsClose_Click(object sender, RoutedEventArgs e)
+    {
+        AgentSettingsOverlay.Visibility = Visibility.Collapsed;
+        InputBox.Focus();
+    }
+
+    private void OverlayNav_Checked(object sender, RoutedEventArgs e)
+    {
+        if (sender is not RadioButton rb || rb.Tag is not string tag)
+            return;
+
+        SetOverlaySection(tag);
+    }
+
+    private void SetOverlaySection(string tag)
+    {
+        if (OverlaySectionService == null || OverlaySectionQuick == null || OverlaySectionDetail == null)
+            return;
+
+        var section = string.IsNullOrWhiteSpace(tag) ? "common" : tag.Trim().ToLowerInvariant();
+
+        OverlaySectionService.Visibility = section == "service" ? Visibility.Visible : Visibility.Collapsed;
+        OverlaySectionQuick.Visibility = section == "permission" ? Visibility.Visible : Visibility.Collapsed;
+        OverlaySectionDetail.Visibility = section == "service" ? Visibility.Collapsed : Visibility.Visible;
+
+        var showCommon = section == "common";
+        var showPermission = section == "permission";
+        var showAdvanced = section == "advanced";
+
+        if (OverlayAiEnabledRow != null)
+            OverlayAiEnabledRow.Visibility = showCommon ? Visibility.Visible : Visibility.Collapsed;
+        if (OverlayThemePanel != null)
+            OverlayThemePanel.Visibility = showCommon ? Visibility.Visible : Visibility.Collapsed;
+        if (OverlayModelEditorPanel != null)
+            OverlayModelEditorPanel.Visibility = showCommon ? Visibility.Visible : Visibility.Collapsed;
+        if (OverlayAnchorPermission != null)
+            OverlayAnchorPermission.Visibility = showPermission ? Visibility.Visible : Visibility.Collapsed;
+        if (OverlayFolderDataUsageRow != null)
+            OverlayFolderDataUsageRow.Visibility = showCommon || showPermission ? Visibility.Visible : Visibility.Collapsed;
+        if (OverlayTlsRow != null)
+            OverlayTlsRow.Visibility = showCommon || showPermission ? Visibility.Visible : Visibility.Collapsed;
+        if (OverlayAnchorAdvanced != null)
+            OverlayAnchorAdvanced.Visibility = showAdvanced ? Visibility.Visible : Visibility.Collapsed;
+        if (OverlayMaxContextTokensRow != null)
+            OverlayMaxContextTokensRow.Visibility = showAdvanced ? Visibility.Visible : Visibility.Collapsed;
+        if (OverlayMaxRetryRow != null)
+            OverlayMaxRetryRow.Visibility = showAdvanced ? Visibility.Visible : Visibility.Collapsed;
+        if (OverlayAdvancedTogglePanel != null)
+            OverlayAdvancedTogglePanel.Visibility = showAdvanced ? Visibility.Visible : Visibility.Collapsed;
+    }
+
+    private void RefreshOverlaySettingsPanel()
+    {
+        if (CmbOverlayService == null || CmbOverlayModel == null)
+            return;
+
+        var llm = _settings.Settings.Llm;
+        var service = (llm.Service ?? "ollama").ToLowerInvariant();
+        var models = GetModelCandidates(service);
+
+        _isOverlaySettingsSyncing = true;
+        try
+        {
+            CmbOverlayService.Items.Clear();
+            foreach (var svc in new[] { "ollama", "vllm", "gemini", "claude" })
+            {
+                CmbOverlayService.Items.Add(new ComboBoxItem
+                {
+                    Content = ServiceLabel(svc),
+                    Tag = svc
+                });
+            }
+            CmbOverlayService.SelectedItem = CmbOverlayService.Items
+                .OfType<ComboBoxItem>()
+                .FirstOrDefault(i => string.Equals(i.Tag as string, service, StringComparison.OrdinalIgnoreCase));
+
+            CmbOverlayModel.Items.Clear();
+            foreach (var model in models)
+            {
+                CmbOverlayModel.Items.Add(new ComboBoxItem
+                {
+                    Content = model.Label,
+                    Tag = model.Id
+                });
+            }
+            CmbOverlayModel.SelectedItem = CmbOverlayModel.Items
+                .OfType<ComboBoxItem>()
+                .FirstOrDefault(i => string.Equals(i.Tag as string, llm.Model, StringComparison.OrdinalIgnoreCase));
+            if (CmbOverlayModel.SelectedItem == null && CmbOverlayModel.Items.Count > 0)
+                CmbOverlayModel.SelectedIndex = 0;
+
+            if (TxtOverlayModelInput != null)
+                TxtOverlayModelInput.Text = llm.Model ?? "";
+            if (ChkOverlayAiEnabled != null)
+                ChkOverlayAiEnabled.IsChecked = _settings.Settings.AiEnabled;
+            if (TxtOverlayServiceEndpoint != null)
+                TxtOverlayServiceEndpoint.Text = GetOverlayServiceEndpoint(service);
+            if (TxtOverlayServiceApiKey != null)
+                TxtOverlayServiceApiKey.Password = GetOverlayServiceApiKey(service);
+            if (ChkOverlayVllmAllowInsecureTls != null)
+                ChkOverlayVllmAllowInsecureTls.IsChecked = llm.VllmAllowInsecureTls;
+            if (TxtOverlayContextCompactTriggerPercent != null)
+                TxtOverlayContextCompactTriggerPercent.Text = Math.Clamp(llm.ContextCompactTriggerPercent, 10, 95).ToString();
+            if (TxtOverlayMaxContextTokens != null)
+                TxtOverlayMaxContextTokens.Text = Math.Max(1024, llm.MaxContextTokens).ToString();
+            if (TxtOverlayMaxRetryOnError != null)
+                TxtOverlayMaxRetryOnError.Text = Math.Clamp(llm.MaxRetryOnError, 0, 10).ToString();
+            if (ChkOverlayEnableProactiveCompact != null)
+                ChkOverlayEnableProactiveCompact.IsChecked = llm.EnableProactiveContextCompact;
+            if (ChkOverlayEnableSkillSystem != null)
+                ChkOverlayEnableSkillSystem.IsChecked = llm.EnableSkillSystem;
+            if (ChkOverlayEnableToolHooks != null)
+                ChkOverlayEnableToolHooks.IsChecked = llm.EnableToolHooks;
+            if (ChkOverlayEnableHookInputMutation != null)
+                ChkOverlayEnableHookInputMutation.IsChecked = llm.EnableHookInputMutation;
+            if (ChkOverlayEnableHookPermissionUpdate != null)
+                ChkOverlayEnableHookPermissionUpdate.IsChecked = llm.EnableHookPermissionUpdate;
+            if (ChkOverlayEnableCoworkVerification != null)
+                ChkOverlayEnableCoworkVerification.IsChecked = llm.EnableCoworkVerification;
+            if (ChkOverlayEnableCodeVerification != null)
+                ChkOverlayEnableCodeVerification.IsChecked = llm.Code.EnableCodeVerification;
+            if (ChkOverlayEnableParallelTools != null)
+                ChkOverlayEnableParallelTools.IsChecked = llm.EnableParallelTools;
+
+            RefreshOverlayThemeCards();
+            RefreshOverlayServiceCards();
+            RefreshOverlayModeButtons();
+            RefreshOverlayServiceFieldLabels(service);
+            BuildOverlayModelChips(service);
+        }
+        finally
+        {
+            _isOverlaySettingsSyncing = false;
+        }
+    }
+
+    private void CmbOverlayService_SelectionChanged(object sender, SelectionChangedEventArgs e)
+    {
+        if (_isOverlaySettingsSyncing || CmbOverlayService.SelectedItem is not ComboBoxItem serviceItem || serviceItem.Tag is not string service)
+            return;
+
+        var llm = _settings.Settings.Llm;
+        llm.Service = service;
+        var candidates = GetModelCandidates(service);
+        if (candidates.Count > 0 && !candidates.Any(m => m.Id == llm.Model))
+            llm.Model = candidates[0].Id;
+
+        _settings.Save();
+        _appState.LoadFromSettings(_settings);
+        UpdateModelLabel();
+        RefreshInlineSettingsPanel();
+        RefreshOverlaySettingsPanel();
+    }
+
+    private void CmbOverlayModel_SelectionChanged(object sender, SelectionChangedEventArgs e)
+    {
+        if (_isOverlaySettingsSyncing || CmbOverlayModel.SelectedItem is not ComboBoxItem modelItem || modelItem.Tag is not string modelId)
+            return;
+
+        _settings.Settings.Llm.Model = modelId;
+        _settings.Save();
+        _appState.LoadFromSettings(_settings);
+        UpdateModelLabel();
+        RefreshInlineSettingsPanel();
+    }
+
+    private void RefreshOverlayThemeCards()
+    {
+        var selected = (_settings.Settings.Llm.AgentTheme ?? "system").ToLowerInvariant();
+        SetOverlayCardSelection(OverlayThemeSystemCard, selected == "system");
+        SetOverlayCardSelection(OverlayThemeLightCard, selected == "light");
+        SetOverlayCardSelection(OverlayThemeDarkCard, selected == "dark");
+    }
+
+    private void RefreshOverlayServiceCards()
+    {
+        var service = (_settings.Settings.Llm.Service ?? "ollama").ToLowerInvariant();
+        SetOverlayCardSelection(OverlaySvcOllamaCard, service == "ollama");
+        SetOverlayCardSelection(OverlaySvcVllmCard, service == "vllm");
+        SetOverlayCardSelection(OverlaySvcGeminiCard, service == "gemini");
+        SetOverlayCardSelection(OverlaySvcClaudeCard, service is "claude" or "sigmoid");
+    }
+
+    private void RefreshOverlayModeButtons()
+    {
+        var llm = _settings.Settings.Llm;
+        BtnOverlayOperationMode.Content = OperationModePolicy.Normalize(_settings.Settings.OperationMode) == OperationModePolicy.ExternalMode
+            ? "사외 모드"
+            : "사내 모드";
+        BtnOverlayFolderDataUsage.Content = _folderDataUsage switch
+        {
+            "active" => "적극 활용",
+            "passive" => "소극 활용",
+            _ => "활용하지 않음",
+        };
+        BtnOverlayPermission.Content = PermissionModeCatalog.ToDisplayLabel(PermissionModeCatalog.NormalizeGlobalMode(llm.FilePermission));
+        BtnOverlayPlanMode.Content = PlanModeLabel(llm.PlanMode);
+        BtnOverlayReasoning.Content = ReasoningLabel(llm.AgentDecisionLevel);
+    }
+
+    private void RefreshOverlayServiceFieldLabels(string service)
+    {
+        if (OverlayEndpointLabel == null || OverlayEndpointHint == null || OverlayApiKeyLabel == null || OverlayApiKeyHint == null)
+            return;
+
+        switch (service)
+        {
+            case "ollama":
+                OverlayEndpointLabel.Text = "Ollama 서버 주소";
+                OverlayEndpointHint.Text = "사내 로컬 Ollama 기본 주소를 입력합니다.";
+                OverlayApiKeyLabel.Text = "Ollama API 키";
+                OverlayApiKeyHint.Text = "사내 게이트웨이를 쓰는 경우에만 입력합니다.";
+                break;
+            case "vllm":
+                OverlayEndpointLabel.Text = "vLLM 서버 주소";
+                OverlayEndpointHint.Text = "OpenAI 호환 엔드포인트 주소를 입력합니다.";
+                OverlayApiKeyLabel.Text = "vLLM API 키";
+                OverlayApiKeyHint.Text = "사내 인증 게이트웨이를 쓰는 경우에만 입력합니다.";
+                break;
+            case "gemini":
+                OverlayEndpointLabel.Text = "기본 서버 주소";
+                OverlayEndpointHint.Text = "Gemini는 기본 주소를 사용합니다. 비워두면 기본값을 사용합니다.";
+                OverlayApiKeyLabel.Text = "Gemini API 키";
+                OverlayApiKeyHint.Text = "외부 호출에 필요한 키를 입력합니다.";
+                break;
+            default:
+                OverlayEndpointLabel.Text = "기본 서버 주소";
+                OverlayEndpointHint.Text = "Claude는 기본 주소를 사용합니다. 비워두면 기본값을 사용합니다.";
+                OverlayApiKeyLabel.Text = "Claude API 키";
+                OverlayApiKeyHint.Text = "외부 호출에 필요한 키를 입력합니다.";
+                break;
+        }
+    }
+
+    private string GetOverlayServiceEndpoint(string service)
+    {
+        var llm = _settings.Settings.Llm;
+        return service switch
+        {
+            "ollama" => llm.OllamaEndpoint ?? "",
+            "vllm" => llm.VllmEndpoint ?? "",
+            "gemini" => llm.Endpoint ?? "",
+            "claude" or "sigmoid" => llm.Endpoint ?? "",
+            _ => llm.Endpoint ?? ""
+        };
+    }
+
+    private string GetOverlayServiceApiKey(string service)
+    {
+        var llm = _settings.Settings.Llm;
+        return service switch
+        {
+            "ollama" => llm.OllamaApiKey ?? "",
+            "vllm" => llm.VllmApiKey ?? "",
+            "gemini" => llm.GeminiApiKey ?? "",
+            "claude" or "sigmoid" => llm.ClaudeApiKey ?? "",
+            _ => llm.ApiKey ?? ""
+        };
+    }
+
+    private void BuildOverlayModelChips(string service)
+    {
+        if (OverlayModelChipPanel == null)
+            return;
+
+        OverlayModelChipPanel.Children.Clear();
+        foreach (var model in GetModelCandidates(service))
+        {
+            var captured = model.Id;
+            var border = new Border
+            {
+                Cursor = Cursors.Hand,
+                CornerRadius = new CornerRadius(10),
+                BorderThickness = new Thickness(1),
+                BorderBrush = TryFindResource("BorderColor") as Brush ?? Brushes.Gray,
+                Background = Brushes.Transparent,
+                Padding = new Thickness(10, 6, 10, 6),
+                Margin = new Thickness(0, 0, 8, 8),
+                Child = new TextBlock
+                {
+                    Text = model.Label,
+                    FontSize = 11,
+                    Foreground = TryFindResource("PrimaryText") as Brush ?? Brushes.Black,
+                }
+            };
+            border.MouseLeftButtonUp += (_, _) =>
+            {
+                if (TxtOverlayModelInput != null)
+                    TxtOverlayModelInput.Text = captured;
+            };
+            OverlayModelChipPanel.Children.Add(border);
+        }
+    }
+
+    private void SetOverlayCardSelection(Border border, bool selected)
+    {
+        var accent = TryFindResource("AccentColor") as Brush ?? Brushes.DodgerBlue;
+        var normal = TryFindResource("BorderColor") as Brush ?? Brushes.Gray;
+        border.BorderBrush = selected ? accent : normal;
+        border.Background = selected
+            ? (TryFindResource("HintBackground") as Brush ?? Brushes.Transparent)
+            : Brushes.Transparent;
+    }
+
+    private void OverlayThemeSystemCard_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
+    {
+        _settings.Settings.Llm.AgentTheme = "system";
+        RefreshOverlayThemeCards();
+    }
+
+    private void OverlayThemeLightCard_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
+    {
+        _settings.Settings.Llm.AgentTheme = "light";
+        RefreshOverlayThemeCards();
+    }
+
+    private void OverlayThemeDarkCard_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
+    {
+        _settings.Settings.Llm.AgentTheme = "dark";
+        RefreshOverlayThemeCards();
+    }
+
+    private void OverlaySvcOllamaCard_MouseLeftButtonUp(object sender, MouseButtonEventArgs e) => SetOverlayService("ollama");
+    private void OverlaySvcVllmCard_MouseLeftButtonUp(object sender, MouseButtonEventArgs e) => SetOverlayService("vllm");
+    private void OverlaySvcGeminiCard_MouseLeftButtonUp(object sender, MouseButtonEventArgs e) => SetOverlayService("gemini");
+    private void OverlaySvcClaudeCard_MouseLeftButtonUp(object sender, MouseButtonEventArgs e) => SetOverlayService("claude");
+
+    private void SetOverlayService(string service)
+    {
+        _settings.Settings.Llm.Service = service;
+        RefreshOverlaySettingsPanel();
+    }
+
+    private void BtnOverlayOperationMode_Click(object sender, RoutedEventArgs e)
+    {
+        var next = OperationModePolicy.Normalize(_settings.Settings.OperationMode) == OperationModePolicy.ExternalMode
+            ? OperationModePolicy.InternalMode
+            : OperationModePolicy.ExternalMode;
+
+        if (!PromptOverlayPasswordDialog("운영 모드 변경", "사내/사외 모드 변경", "비밀번호를 입력하세요."))
+            return;
+
+        _settings.Settings.OperationMode = next;
+        RefreshOverlayModeButtons();
+    }
+
+    private void BtnOverlayFolderDataUsage_Click(object sender, RoutedEventArgs e)
+    {
+        _folderDataUsage = _folderDataUsage switch
+        {
+            "none" => "passive",
+            "passive" => "active",
+            _ => "none",
+        };
+        RefreshOverlayModeButtons();
+    }
+
+    private void BtnOverlaySave_Click(object sender, RoutedEventArgs e)
+    {
+        var llm = _settings.Settings.Llm;
+        var service = (llm.Service ?? "ollama").Trim().ToLowerInvariant();
+        var endpoint = TxtOverlayServiceEndpoint?.Text.Trim() ?? "";
+        var apiKey = TxtOverlayServiceApiKey?.Password ?? "";
+
+        _settings.Settings.AiEnabled = ChkOverlayAiEnabled?.IsChecked == true;
+        llm.Model = TxtOverlayModelInput?.Text.Trim() ?? llm.Model;
+        llm.VllmAllowInsecureTls = ChkOverlayVllmAllowInsecureTls?.IsChecked == true;
+        llm.EnableProactiveContextCompact = ChkOverlayEnableProactiveCompact?.IsChecked == true;
+        llm.ContextCompactTriggerPercent = ParseOverlayInt(TxtOverlayContextCompactTriggerPercent?.Text, 80, 10, 95);
+        llm.MaxContextTokens = ParseOverlayInt(TxtOverlayMaxContextTokens?.Text, 4096, 1024, 200000);
+        llm.MaxRetryOnError = ParseOverlayInt(TxtOverlayMaxRetryOnError?.Text, 3, 0, 10);
+        llm.EnableSkillSystem = ChkOverlayEnableSkillSystem?.IsChecked == true;
+        llm.EnableToolHooks = ChkOverlayEnableToolHooks?.IsChecked == true;
+        llm.EnableHookInputMutation = ChkOverlayEnableHookInputMutation?.IsChecked == true;
+        llm.EnableHookPermissionUpdate = ChkOverlayEnableHookPermissionUpdate?.IsChecked == true;
+        llm.EnableCoworkVerification = ChkOverlayEnableCoworkVerification?.IsChecked == true;
+        llm.Code.EnableCodeVerification = ChkOverlayEnableCodeVerification?.IsChecked == true;
+        llm.EnableParallelTools = ChkOverlayEnableParallelTools?.IsChecked == true;
+        llm.FolderDataUsage = _folderDataUsage;
+        llm.AgentUiExpressionLevel = "rich";
+
+        switch (service)
+        {
+            case "ollama":
+                llm.OllamaEndpoint = endpoint;
+                llm.OllamaApiKey = apiKey;
+                llm.Endpoint = endpoint;
+                llm.ApiKey = apiKey;
+                llm.OllamaModel = llm.Model;
+                break;
+            case "vllm":
+                llm.VllmEndpoint = endpoint;
+                llm.VllmApiKey = apiKey;
+                llm.Endpoint = endpoint;
+                llm.ApiKey = apiKey;
+                llm.VllmModel = llm.Model;
+                break;
+            case "gemini":
+                llm.Endpoint = endpoint;
+                llm.GeminiApiKey = apiKey;
+                llm.ApiKey = apiKey;
+                llm.GeminiModel = llm.Model;
+                break;
+            case "claude":
+            case "sigmoid":
+                llm.Endpoint = endpoint;
+                llm.ClaudeApiKey = apiKey;
+                llm.ApiKey = apiKey;
+                llm.ClaudeModel = llm.Model;
+                break;
+        }
+
+        _settings.Save();
+        _appState.LoadFromSettings(_settings);
+        ApplyAgentThemeResources();
+        UpdatePermissionUI();
+        UpdateDataUsageUI();
+        SaveConversationSettings();
+        RefreshInlineSettingsPanel();
+        UpdateModelLabel();
+        UpdateTabUI();
+        AgentSettingsOverlay.Visibility = Visibility.Collapsed;
+        ShowToast("AX Agent 설정이 저장되었습니다.");
+    }
+
+    private void BtnOpenFullSettings_Click(object sender, RoutedEventArgs e)
+    {
+        if (System.Windows.Application.Current is App app)
+            app.OpenSettingsFromChat();
+    }
+
+    private bool PromptOverlayPasswordDialog(string title, string header, string message)
+    {
+        var bgBrush = TryFindResource("LauncherBackground") as Brush ?? Brushes.White;
+        var fgBrush = TryFindResource("PrimaryText") as Brush ?? Brushes.Black;
+        var subFgBrush = TryFindResource("SecondaryText") as Brush ?? Brushes.Gray;
+        var borderBrush = TryFindResource("BorderColor") as Brush ?? Brushes.Gray;
+        var itemBg = TryFindResource("ItemBackground") as Brush ?? Brushes.WhiteSmoke;
+
+        var dlg = new Window
+        {
+            Title = title,
+            Width = 340,
+            SizeToContent = SizeToContent.Height,
+            WindowStartupLocation = WindowStartupLocation.CenterOwner,
+            Owner = this,
+            ResizeMode = ResizeMode.NoResize,
+            WindowStyle = WindowStyle.None,
+            AllowsTransparency = true,
+            Background = Brushes.Transparent,
+            ShowInTaskbar = false,
+        };
+
+        var border = new Border
+        {
+            Background = bgBrush,
+            CornerRadius = new CornerRadius(12),
+            BorderBrush = borderBrush,
+            BorderThickness = new Thickness(1),
+            Padding = new Thickness(20),
+        };
+
+        var stack = new StackPanel();
+        stack.Children.Add(new TextBlock { Text = header, FontSize = 15, FontWeight = FontWeights.SemiBold, Foreground = fgBrush, Margin = new Thickness(0, 0, 0, 12) });
+        stack.Children.Add(new TextBlock { Text = message, FontSize = 12, Foreground = subFgBrush, Margin = new Thickness(0, 0, 0, 6) });
+
+        var pwBox = new PasswordBox
+        {
+            FontSize = 14,
+            Padding = new Thickness(8, 6, 8, 6),
+            Background = itemBg,
+            Foreground = fgBrush,
+            BorderBrush = borderBrush,
+            PasswordChar = '*',
+        };
+        stack.Children.Add(pwBox);
+
+        var btnRow = new StackPanel { Orientation = Orientation.Horizontal, HorizontalAlignment = HorizontalAlignment.Right, Margin = new Thickness(0, 16, 0, 0) };
+        var cancelBtn = new Button { Content = "취소", Padding = new Thickness(16, 6, 16, 6), Margin = new Thickness(0, 0, 8, 0) };
+        cancelBtn.Click += (_, _) => dlg.DialogResult = false;
+        btnRow.Children.Add(cancelBtn);
+
+        var okBtn = new Button { Content = "확인", Padding = new Thickness(16, 6, 16, 6), IsDefault = true };
+        okBtn.Click += (_, _) =>
+        {
+            if (pwBox.Password == UnifiedAdminPassword)
+                dlg.DialogResult = true;
+            else
+            {
+                pwBox.Clear();
+                pwBox.Focus();
+            }
+        };
+        btnRow.Children.Add(okBtn);
+        stack.Children.Add(btnRow);
+
+        border.Child = stack;
+        dlg.Content = border;
+        dlg.Loaded += (_, _) => pwBox.Focus();
+        return dlg.ShowDialog() == true;
+    }
+
+    private static int ParseOverlayInt(string? text, int fallback, int min, int max)
+    {
+        if (!int.TryParse(text, out var value))
+            value = fallback;
+        return Math.Clamp(value, min, max);
+    }
+
     private void BtnInlineSettingsClose_Click(object sender, RoutedEventArgs e)
         => InlineSettingsPanel.Visibility = Visibility.Collapsed;
 
@@ -13108,6 +13603,7 @@ public partial class ChatWindow : Window
         _settings.Save();
         _appState.LoadFromSettings(_settings);
         RefreshInlineSettingsPanel();
+        RefreshOverlaySettingsPanel();
     }
 
     private void BtnInlineReasoning_Click(object sender, RoutedEventArgs e)
@@ -13117,6 +13613,7 @@ public partial class ChatWindow : Window
         _settings.Save();
         _appState.LoadFromSettings(_settings);
         RefreshInlineSettingsPanel();
+        RefreshOverlaySettingsPanel();
     }
 
     private void BtnInlinePlanMode_Click(object sender, RoutedEventArgs e)
@@ -13126,6 +13623,7 @@ public partial class ChatWindow : Window
         _settings.Save();
         _appState.LoadFromSettings(_settings);
         RefreshInlineSettingsPanel();
+        RefreshOverlaySettingsPanel();
     }
 
     private void BtnInlinePermission_Click(object sender, RoutedEventArgs e)
@@ -13137,6 +13635,7 @@ public partial class ChatWindow : Window
         UpdatePermissionUI();
         SaveConversationSettings();
         RefreshInlineSettingsPanel();
+        RefreshOverlaySettingsPanel();
     }
 
     private void BtnInlineSkill_Click(object sender, RoutedEventArgs e)