AX Agent 코워크·코드 흐름과 컨텍스트 관리를 claude-code 기준으로 대폭 정리

- 코워크·코드 프롬프트, 도구 선택, 문서 생성/검증 흐름을 claude-code 동등 품질 기준으로 재정렬함

- OpenAI/vLLM 경로의 오래된 tool history를 평탄화하고 최근 이력만 구조화해 컨텍스트 직렬화를 경량화함

- AX Agent UI를 테마 기준으로 재구성하고 플랜 승인/오버레이/이벤트 렌더링/명령 입력 상호작용을 개선함

- 파일 후보 제안, 반복 경로 정체 복구, LSP 보강, 문서·PPT 처리 개선, 설정/서비스 인터페이스 정리를 함께 반영함

- README.md 및 docs/DEVELOPMENT.md를 작업 시점별로 갱신함

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

src/AxCopilot/Themes/AgentCodexLight.xaml

@@ -1,7 +1,7 @@
 <ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
-    <SolidColorBrush x:Key="LauncherBackground" Color="#F3F4F6"/>
-    <SolidColorBrush x:Key="ItemBackground" Color="#FCFCFD"/>
+    <SolidColorBrush x:Key="LauncherBackground" Color="#FFFFFF"/>
+    <SolidColorBrush x:Key="ItemBackground" Color="#F3F4F6"/>
     <SolidColorBrush x:Key="ItemSelectedBackground" Color="#E4E7EC"/>
     <SolidColorBrush x:Key="ItemHoverBackground" Color="#ECEFF3"/>
     <SolidColorBrush x:Key="PrimaryText" Color="#181A1F"/>

src/AxCopilot/Themes/AgentEmberLight.xaml

@@ -1,7 +1,7 @@
 <ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
-    <SolidColorBrush x:Key="LauncherBackground" Color="#FAF6EF"/>
-    <SolidColorBrush x:Key="ItemBackground" Color="#FFFDFC"/>
+    <SolidColorBrush x:Key="LauncherBackground" Color="#FFFFFF"/>
+    <SolidColorBrush x:Key="ItemBackground" Color="#FAF6EF"/>
     <SolidColorBrush x:Key="ItemSelectedBackground" Color="#F3E5D5"/>
     <SolidColorBrush x:Key="ItemHoverBackground" Color="#F6ECE0"/>
     <SolidColorBrush x:Key="PrimaryText" Color="#2B2118"/>

src/AxCopilot/Themes/AgentLight.xaml

@@ -1,7 +1,7 @@
 <ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
-    <SolidColorBrush x:Key="LauncherBackground" Color="#F8FAFC"/>
-    <SolidColorBrush x:Key="ItemBackground" Color="#FFFFFF"/>
+    <SolidColorBrush x:Key="LauncherBackground" Color="#FFFFFF"/>
+    <SolidColorBrush x:Key="ItemBackground" Color="#F8FAFC"/>
     <SolidColorBrush x:Key="ItemSelectedBackground" Color="#E2E8F0"/>
     <SolidColorBrush x:Key="ItemHoverBackground" Color="#EAF2FF"/>
     <SolidColorBrush x:Key="PrimaryText" Color="#0F172A"/>

src/AxCopilot/Themes/AgentNordLight.xaml

@@ -1,7 +1,7 @@
 <ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
-    <SolidColorBrush x:Key="LauncherBackground" Color="#ECEFF4"/>
-    <SolidColorBrush x:Key="ItemBackground" Color="#FFFFFF"/>
+    <SolidColorBrush x:Key="LauncherBackground" Color="#FFFFFF"/>
+    <SolidColorBrush x:Key="ItemBackground" Color="#ECEFF4"/>
     <SolidColorBrush x:Key="ItemSelectedBackground" Color="#E5E9F0"/>
     <SolidColorBrush x:Key="ItemHoverBackground" Color="#E5E9F0"/>
     <SolidColorBrush x:Key="PrimaryText" Color="#2E3440"/>

src/AxCopilot/Themes/AgentSlateLight.xaml

@@ -1,7 +1,7 @@
 <ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
-    <SolidColorBrush x:Key="LauncherBackground" Color="#F8FAFC"/>
-    <SolidColorBrush x:Key="ItemBackground" Color="#FFFFFF"/>
+    <SolidColorBrush x:Key="LauncherBackground" Color="#FFFFFF"/>
+    <SolidColorBrush x:Key="ItemBackground" Color="#F0F2F8"/>
     <SolidColorBrush x:Key="ItemSelectedBackground" Color="#E2E8F0"/>
     <SolidColorBrush x:Key="ItemHoverBackground" Color="#EEF2F7"/>
     <SolidColorBrush x:Key="PrimaryText" Color="#0F172A"/>

src/AxCopilot/Themes/Converters.cs

@@ -107,6 +107,28 @@ public class HexToColorConverter : IValueConverter
         throw new NotImplementedException();
 }
 
+/// <summary>"#RRGGBB" 헥스 문자열 → SolidColorBrush. DataTemplate 아이콘 색상에 사용.</summary>
+public class HexToBrushConverter : IValueConverter
+{
+    public object Convert(object value, Type t, object p, CultureInfo c)
+    {
+        if (value is string hex && !string.IsNullOrEmpty(hex))
+        {
+            try
+            {
+                var color = (Color)ColorConverter.ConvertFromString(hex);
+                var brush = new SolidColorBrush(color);
+                brush.Freeze();
+                return brush;
+            }
+            catch { /* 잘못된 값이면 기본 반환 */ }
+        }
+        return new SolidColorBrush(Color.FromRgb(0x6B, 0x72, 0x80));
+    }
+    public object ConvertBack(object v, Type t, object p, CultureInfo c) =>
+        throw new NotImplementedException();
+}
+
 /// <summary>null 또는 빈 문자열이면 Collapsed, 값이 있으면 Visible.</summary>
 public class NullToCollapsedConverter : IValueConverter
 {