내부 설정 Gemini API 키 입력 문제 수정

- AX Agent 내부 설정 공통 탭의 서비스 API 키 입력 필드를 PasswordBox에서 TextBox로 변경

- Gemini/Claude 키 입력 시 오버레이 동기화 중에도 입력이 끊기지 않도록 보완

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

docs/DEVELOPMENT.md

@@ -1,4 +1,6 @@
-- Document update: 2026-04-07 02:03 (KST) - Fixed broken Korean strings in Cowork preset selection, composer guidance, and live progress/process-feed rendering. Rewrote ChatWindow.TopicPresetPresentation, normalized live progress copy, and cleaned up loop gate guidance strings that had become mojibake.
+- Document update: 2026-04-07 02:11 (KST) - Replaced the AX Agent internal-settings service API key input from PasswordBox to TextBox so Gemini/Claude keys can be entered reliably even while the overlay is resyncing service state.
+
+- Document update: 2026-04-07 02:03 (KST) - Fixed broken Korean strings in Cowork preset selection, composer guidance, and live progress/process-feed rendering. Rewrote ChatWindow.TopicPresetPresentation, normalized live progress copy, and cleaned up loop gate guidance strings that had become mojibake.
 - Document update: 2026-04-07 02:03 (KST) - Adjusted AX Agent progress visibility so Cowork/Code now shows an immediate live hint when a run starts and no longer clears that hint on every intermediate agent event. Neutralized cancellation wording to 작업이 중단되었습니다 for non-user interruption paths.
 
 # AX Copilot - 媛쒕컻 臾몄꽌
@@ -5281,3 +5283,4 @@ ow + toggle ?쒓컖 ?몄뼱濡??ㅼ떆 ?뺣젹?덈떎.
 - [AgentLoopService.cs](/E:/AX%20Copilot%20-%20Codex/src/AxCopilot/Services/Agent/AgentLoopService.cs)
   - 내부 중단/취소가 발생했을 때 사용자 취소로 단정하는 문구를 중립적으로 조정해 오탐성 `사용자가 작업을 취소했습니다` 표시를 줄였다.
 
+