빌드 부산물 추적 해제와 AX Agent 대기열·composer UI 정리

- .gitignore에 bin/obj/publish 및 IDE/OS/비밀정보 패턴 추가
- Git 인덱스에서 publish 및 src 하위 bin/obj 빌드 부산물 추적을 해제하여 저장소 노이즈를 정리
- DraftQueue를 실행 대기/최근 결과 섹션과 상태 요약 pill 구조로 재정리
- composer 상단 모델/컨텍스트/프리셋 줄과 하단 작업 위치 칩 UI를 더 평평한 시각 언어로 통일
- 워크스페이스·브랜치·워크트리 패널에 공통 row 및 요약 strip을 적용해 panel UX를 정돈
- README.md와 docs/DEVELOPMENT.md, docs/AGENT_ROADMAP.md, AGENTS.md 이력을 갱신

검증
- dotnet build src/AxCopilot/AxCopilot.csproj -c Release -v minimal -p:OutputPath=bin\\verify\\ -p:IntermediateOutputPath=obj\\verify\\
- 경고 0개, 오류 0개

src/AxCopilot/Views/AgentSettingsWindow.xaml.cs

@@ -19,6 +19,7 @@ public partial class AgentSettingsWindow : Window
     private string _reasoningMode = "detailed";
     private string _folderDataUsage = "active";
     private string _operationMode = OperationModePolicy.InternalMode;
+    private string _selectedModel = string.Empty;
 
     public AgentSettingsWindow(SettingsService settings)
     {
@@ -30,14 +31,14 @@ public partial class AgentSettingsWindow : Window
 
     private void LoadFromSettings()
     {
-        ModelInput.Text = _llm.Model ?? "";
+        _selectedModel = _llm.Model ?? "";
+        ModelInput.Text = _selectedModel;
         _permissionMode = PermissionModeCatalog.NormalizeGlobalMode(_llm.FilePermission);
         _planMode = string.IsNullOrWhiteSpace(_llm.PlanMode) ? "off" : _llm.PlanMode;
         _reasoningMode = string.IsNullOrWhiteSpace(_llm.AgentDecisionLevel) ? "detailed" : _llm.AgentDecisionLevel;
         _folderDataUsage = string.IsNullOrWhiteSpace(_llm.FolderDataUsage) ? "active" : _llm.FolderDataUsage;
         _operationMode = OperationModePolicy.Normalize(_settings.Settings.OperationMode);
 
-        ChkVllmAllowInsecureTls.IsChecked = _llm.VllmAllowInsecureTls;
         ChkEnableProactiveCompact.IsChecked = _llm.EnableProactiveContextCompact;
         TxtContextCompactTriggerPercent.Text = Math.Clamp(_llm.ContextCompactTriggerPercent, 10, 95).ToString();
         TxtMaxContextTokens.Text = Math.Max(1024, _llm.MaxContextTokens).ToString();
@@ -154,7 +155,13 @@ public partial class AgentSettingsWindow : Window
                     Foreground = TryFindResource("PrimaryText") as Brush ?? Brushes.White,
                 },
             };
-            border.MouseLeftButtonUp += (_, _) => ModelInput.Text = captured;
+            SetCardSelection(border, string.Equals(captured, _selectedModel, StringComparison.OrdinalIgnoreCase));
+            border.MouseLeftButtonUp += (_, _) =>
+            {
+                _selectedModel = captured;
+                ModelInput.Text = captured;
+                BuildModelChips();
+            };
             ModelChipPanel.Children.Add(border);
         }
     }
@@ -328,7 +335,7 @@ public partial class AgentSettingsWindow : Window
             PermissionModeCatalog.Default => PermissionModeCatalog.AcceptEdits,
             PermissionModeCatalog.AcceptEdits => PermissionModeCatalog.Plan,
             PermissionModeCatalog.Plan => PermissionModeCatalog.BypassPermissions,
-            // 기본 순환에서는 코어 모드만 순환하고 dontAsk는 명시 선택으로만 진입.
+            // 권한 표면 모드는 코어 4단계만 순환합니다.
             PermissionModeCatalog.BypassPermissions => PermissionModeCatalog.Deny,
             PermissionModeCatalog.DontAsk => PermissionModeCatalog.Deny,
             _ => PermissionModeCatalog.Deny,
@@ -371,14 +378,13 @@ public partial class AgentSettingsWindow : Window
 
     private void BtnSave_Click(object sender, RoutedEventArgs e)
     {
-        _llm.Model = ModelInput.Text.Trim();
+        _llm.Model = string.IsNullOrWhiteSpace(_selectedModel) ? (_llm.Model ?? "") : _selectedModel.Trim();
         _llm.FilePermission = _permissionMode;
         _llm.PlanMode = _planMode;
         _llm.AgentDecisionLevel = _reasoningMode;
         _llm.FolderDataUsage = _folderDataUsage;
         _llm.AgentUiExpressionLevel = "rich";
 
-        _llm.VllmAllowInsecureTls = ChkVllmAllowInsecureTls.IsChecked == true;
         _llm.EnableProactiveContextCompact = ChkEnableProactiveCompact.IsChecked == true;
         _llm.ContextCompactTriggerPercent = ParseInt(TxtContextCompactTriggerPercent.Text, 80, 10, 95);
         _llm.MaxContextTokens = ParseInt(TxtMaxContextTokens.Text, 4096, 1024, 200000);