feat: Docker 기반 배포 구성

[leeyunbo]

Summary

• Houseping 앱을 Docker 컨테이너로 실행할 수 있도록 Dockerfile 추가
• docker-compose.yml에 앱 서비스 정의 (PostgreSQL + Houseping App)
• Jenkins CI/CD 파이프라인 연동을 위한 기반 작업

Test plan

• docker build -t houseping:latest . 로 이미지 빌드 확인
• docker compose -f docker/docker-compose.yml up -d 로 앱 기동 확인
• http://localhost:10030/actuator/health 정상 응답 확인

🤖 Generated with Claude Code

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