핵심 엔진을 claude-code 기준으로 정렬하고 스트리밍 재시도 경계를 정리한다

- StreamingToolExecutionCoordinator에서 조기 실행 대상을 file_read/document_read 중심으로 축소하고 folder_map 등 구조 탐색 도구를 prefetch 대상에서 제거함

- 스트리밍 재시도 전에 RetryReset 이벤트를 추가해 중간 응답 미리보기 누적을 끊고 AgentLoopService가 재시도 경계를 명확히 표시하도록 조정함

- AxAgentExecutionEngine의 Cowork/Code 빈 응답 합성을 보수적으로 바꿔 실행 근거가 있을 때만 완료 요약을 만들고 근거가 없으면 로그 확인 안내를 반환하도록 정리함

- Code 루프의 post-tool verification과 completion gate도 직전 수정에서 함께 정리해 일반 수정의 과검증을 줄였음

- README.md, docs/DEVELOPMENT.md에 2026-04-09 21:03 (KST) 기준 변경 이력과 검증 결과를 반영함

검증 결과: 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/AgentLoopTransitions.Verification.cs

@@ -5,7 +5,7 @@ namespace AxCopilot.Services.Agent;
 public partial class AgentLoopService
 {
     private void ApplyCodeQualityFollowUpTransition(
-        LlmService.ContentBlock call,
+        ContentBlock call,
         ToolResult result,
         List<ChatMessage> messages,
         TaskTypePolicy taskPolicy,
@@ -13,9 +13,9 @@ public partial class AgentLoopService
         ref string? lastModifiedCodeFilePath)
     {
         var highImpactCodeChange = IsHighImpactCodeModification(ActiveTab ?? "", call.ToolName, result);
-        if (ShouldInjectCodeQualityFollowUp(ActiveTab ?? "", call.ToolName, result))
+        requireHighImpactCodeVerification = highImpactCodeChange;
+        if (highImpactCodeChange && ShouldInjectCodeQualityFollowUp(ActiveTab ?? "", call.ToolName, result))
         {
-            requireHighImpactCodeVerification = highImpactCodeChange;
             lastModifiedCodeFilePath = result.FilePath;
             messages.Add(new ChatMessage
             {
@@ -52,8 +52,12 @@ public partial class AgentLoopService
         var hasCodeVerificationEvidence = HasCodeVerificationEvidenceAfterLastModification(
             messages,
             requireHighImpactCodeVerification);
+        var hasDiffEvidence = HasDiffEvidenceAfterLastModification(messages);
+        var hasRecentBuildOrTestEvidence = HasBuildOrTestEvidenceAfterLastModification(messages);
+        var hasSuccessfulBuildAndTestEvidence = HasSuccessfulBuildAndTestAfterLastModification(messages);
         if (executionPolicy.CodeVerificationGateMaxRetries > 0
             && !hasCodeVerificationEvidence
+            && !(hasDiffEvidence && hasRecentBuildOrTestEvidence && !requireHighImpactCodeVerification)
             && runState.CodeVerificationGateRetry < executionPolicy.CodeVerificationGateMaxRetries)
         {
             runState.CodeVerificationGateRetry++;
@@ -89,7 +93,10 @@ public partial class AgentLoopService
             return true;
         }
 
+        var hasBlockingCodeEvidenceGap = !hasCodeVerificationEvidence
+            || (requireHighImpactCodeVerification && !hasSuccessfulBuildAndTestEvidence);
         if (executionPolicy.FinalReportGateMaxRetries > 0
+            && !hasBlockingCodeEvidenceGap
             && !HasSufficientFinalReportEvidence(textResponse, taskPolicy, requireHighImpactCodeVerification, messages)
             && runState.FinalReportGateRetry < executionPolicy.FinalReportGateMaxRetries)
         {