claw-code 대조 기반 AX Agent 품질 향상 3트랙 계획을 수립한다

- 사용자 체감 UI/UX, LLM·작업 처리, 유지보수·추가기능 구조의 3트랙으로 남은 품질 향상 과제를 재정리했다.

- docs/claw-code-parity-plan.md에 참조 파일, AX 적용 위치, 완료 조건, 품질 기준, 권장 실행 순서를 고정했다.

- README와 DEVELOPMENT 문서에 2026-04-06 09:27 (KST) 기준 계획 변경 이력을 반영했다.

- 이번 변경은 문서화 작업으로 코드 변경이 없어 별도 빌드는 생략했다.

docs/DEVELOPMENT.md

@@ -1,5 +1,8 @@
 # AX Copilot - 媛쒕컻 臾몄꽌
 
+- Document update: 2026-04-06 09:27 (KST) - Re-framed the remaining `claw-code` parity work into three explicit tracks: user-facing UI/UX quality, LLM/task-handling quality, and maintainability/extensibility structure. This separates visible polish from runtime truth and from architectural cleanup.
+- Document update: 2026-04-06 09:27 (KST) - Captured the new track plan in `docs/claw-code-parity-plan.md` with reference files, AX apply targets, completion criteria, quality criteria, and recommended execution order so future work can be prioritized more deliberately.
+
 - Document update: 2026-04-06 09:14 (KST) - Split worktree-selection popup rendering into `ChatWindow.SelectionPopupPresentation.cs`. The current workspace/worktree chooser and the shared selected-row popup card renderer now live outside `ChatWindow.xaml.cs`, reducing footer selection UI density in the main window file.
 - Document update: 2026-04-06 09:14 (KST) - This keeps branch/worktree/footer chooser UX on the same presentation side of the codebase and leaves the main chat window more focused on runtime orchestration and conversation flow.