fix(chat): 모바일 읽음 상태와 배지 조회 동기화

[minbros]

변경 내용

• 모바일 채팅을 보고 있을 때 읽지 않은 메시지 개수를 재조회하지 않도록 수정했습니다.
• 읽음 처리 전에 시작한 조회를 취소해, 늦게 도착한 응답으로 배지가 다시 나타나지 않게 했습니다.

변경 이유

• 모바일에서 메시지를 주고받은 뒤에도 읽지 않은 메시지 배지가 남는 문제를 해결합니다.

테스트

• npm run lint
• npm test
• npm run build
• 그 외 수동 검증:

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Project	Deployment	Actions	Updated
frontend-server	Ready	Preview	Sep 11, 2026 4:55am UTC

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📥 Commits

Reviewing files that changed from the base of the PR and between eba4b76 and 0f8c61c.

📒 Files selected for processing (6)

• src/components/layout/MainRoomGate.tsx
• src/hooks/useChatPanelOpen.ts
• src/hooks/useRoomUnreadCount.test.tsx
• src/hooks/useRoomUnreadCount.ts
• src/lib/chat/message-read.test.ts
• src/lib/chat/message-read.ts

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud