AX Agent 레거시 plan 도구와 상태 배지 노출을 추가 정리

- code 탭에서 enter_plan_mode/exit_plan_mode 도구를 항상 비활성화해 레거시 설정값이 런타임을 흔들지 않도록 정리

- queue/재시도 대기만 남은 상태에서는 RuntimeActivityBadge와 상단 strip이 기본 노출되지 않게 조정

- idle Cowork/Code 헤더 소음을 줄이도록 ChatWindow 상태 표시 조건을 추가 보정

- README와 DEVELOPMENT 문서에 2026-04-05 20:48 (KST) 기준 변경 내역 반영

- 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/Services/Agent/AgentTabSettingsResolver.cs

@@ -21,11 +21,10 @@ internal static class AgentTabSettingsResolver
 
     public static IEnumerable<string> EnumerateCodeTabDisabledTools(CodeSettings code)
     {
-        if (!code.EnablePlanModeTools)
-        {
-            yield return "enter_plan_mode";
-            yield return "exit_plan_mode";
-        }
+        // Plan mode tools are legacy compatibility only and stay disabled
+        // regardless of any persisted value.
+        yield return "enter_plan_mode";
+        yield return "exit_plan_mode";
 
         if (!code.EnableWorktreeTools)
         {

src/AxCopilot/Services/AppStateService.cs

@@ -544,9 +544,7 @@ public sealed class AppStateService
         var latestDeniedPermission = GetLatestDeniedPermission();
 
         var showRuntimeBadge = taskSummary.HasActiveTasks
-                              || queueSummary.QueuedCount > 0
-                              || queueSummary.RunningCount > 0
-                              || queueSummary.BlockedCount > 0
+                              || taskSummary.PendingPermissionCount > 0
                               || backgroundSummary.ActiveCount > 0;
 
         var runtimeLabel = taskSummary.PendingPermissionCount > 0
@@ -582,20 +580,6 @@ public sealed class AppStateService
             stripKind = "failed_run";
             stripText = $"최근 실패 {FormatDate(taskSummary.LatestFailedRun.UpdatedAt)}";
         }
-        else if (queueSummary.RunningCount > 0 || queueSummary.QueuedCount > 0)
-        {
-            stripKind = "queue";
-            stripText = queueSummary.RunningCount > 0
-                ? $"큐 실행 중 {queueSummary.RunningCount} · 다음 {Truncate(queueSummary.NextItem?.Text, 24)}"
-                : $"대기열 {queueSummary.QueuedCount} · 다음 {Truncate(queueSummary.NextItem?.Text, 24)}";
-        }
-        else if (queueSummary.BlockedCount > 0)
-        {
-            stripKind = "queue_blocked";
-            stripText = queueSummary.NextReadyAt.HasValue
-                ? $"재시도 대기 {queueSummary.BlockedCount} · {FormatDate(queueSummary.NextReadyAt.Value)}"
-                : $"재시도 대기 {queueSummary.BlockedCount}";
-        }
         else if (backgroundSummary.ActiveCount > 0)
         {
             stripKind = "background";

src/AxCopilot/Views/ChatWindow.xaml.cs

@@ -9275,9 +9275,11 @@ public partial class ChatWindow : Window
     private void UpdateTaskSummaryIndicators()
     {
         var status = _appState.GetOperationalStatus(_activeTab);
+        var hasLiveRuntimeActivity = !string.Equals(_activeTab, "Chat", StringComparison.OrdinalIgnoreCase)
+                                     && (_runningConversationCount > 0 || _appState.ActiveTasks.Count > 0);
 
         if (RuntimeActivityBadge != null)
-            RuntimeActivityBadge.Visibility = status.ShowRuntimeBadge
+            RuntimeActivityBadge.Visibility = status.ShowRuntimeBadge && hasLiveRuntimeActivity
                 ? Visibility.Visible
                 : Visibility.Collapsed;
 
@@ -17913,8 +17915,6 @@ public partial class ChatWindow : Window
 
     private void UpdateAgentProgressBar(AgentEvent evt)
     {
-        var isDebugLogLevel = string.Equals(_settings.Settings.Llm.AgentLogLevel, "debug", StringComparison.OrdinalIgnoreCase);
-
         switch (evt.Type)
         {
             case AgentEventType.Planning when evt.Steps is { Count: > 0 }: