feat: 마음 기록 전면 카메라 사진 등록 기능 추가 (사진 2개 등록 가능하도록)

[Neibce]

Summary by CodeRabbit

• New Features

  • 마음로그 업로드 시 앞면과 뒷면 파일을 각각 등록할 수 있도록 기능이 확장되었습니다.
  • presigned URL 발급 시 앞면과 뒷면 파일 각각에 대해 파일명과 URL이 제공됩니다.

• Bug Fixes

  • 파일명 중복 검사 및 저장 로직이 앞면/뒷면 파일별로 정확하게 동작하도록 개선되었습니다.

[coderabbitai]

Walkthrough

마음로그 기능에서 단일 파일(이름 및 확장자) 기반 처리 구조를 프론트/백 두 개의 파일 이름과 presigned URL을 개별적으로 다루는 방식으로 전환하였습니다. 이에 따라 DTO, 엔티티, 레포지토리, 서비스 계층의 필드, 메서드 시그니처 및 검증 로직이 모두 두 파일 체계에 맞게 변경되었습니다.

Changes

Cohort / File(s)	Change Summary
Presigned Response DTO 구조 변경 backend/ongi/src/main/java/ongi/maum_log/dto/MaumLogPresignedResponseDto.java	presignedUrl, fileName → frontFileName, frontPresignedUrl, backFileName, backPresignedUrl 네 필드로 교체; 정적 팩토리 메서드도 이에 맞춰 파라미터 및 반환 구조 변경
Upload Request DTO 구조 변경 backend/ongi/src/main/java/ongi/maum_log/dto/MaumLogUploadRequestDto.java	fileName, fileExtension → frontFileName, backFileName 두 필드로 교체; 각 필드에 @NotNull 적용
엔티티 구조 변경 backend/ongi/src/main/java/ongi/maum_log/entity/MaumLog.java	fileName → frontFileName으로 필드명 및 어노테이션 변경, fileExtension 필드 제거, backFileName 필드 추가 및 unique 제약 부여
레포지토리 메서드 분리 backend/ongi/src/main/java/ongi/maum_log/repository/MaumLogRepository.java	existsByFileName(String) → existsByFrontFileName(String), existsByBackFileName(String) 두 메서드로 분리
서비스 계층 주요 로직 변경 backend/ongi/src/main/java/ongi/maum_log/service/MaumLogService.java	단일 파일 처리 → front/back 파일명 각각의 존재 검증, presigned URL 발급 및 엔티티 저장; 관련 메서드 시그니처 및 내부 로직 전면 수정

Sequence Diagram(s)

sequenceDiagram
    participant Client
    participant Service
    participant Repository
    participant S3

    Client->>Service: getPresignedPutUrl()
    Service->>S3: generatePresignedUrl(front)
    Service->>S3: generatePresignedUrl(back)
    Service-->>Client: return frontFileName, frontPresignedUrl, backFileName, backPresignedUrl

    Client->>Service: createMaumLog(frontFileName, backFileName, ...)
    Service->>Repository: existsByFrontFileName(frontFileName)
    Service->>Repository: existsByBackFileName(backFileName)
    Service->>S3: check frontFile existence
    Service->>S3: check backFile existence
    Service->>Repository: save MaumLog(frontFileName, backFileName, ...)
    Service-->>Client: 완료 응답

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Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Poem

🐇
앞면, 뒷면 두 파일로
마음로그 새단장!
presigned URL도
한 쌍씩 번쩍 번쩍.
토끼는 귀를 쫑긋 세워
코드 변화에 깡충깡충,
두 배로 안전해진 로그에
당근 한 입, 만세!
🥕

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📜 Recent review details

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📥 Commits

Reviewing files that changed from the base of the PR and between 078e1e8 and 9de9ccc.

📒 Files selected for processing (5)

• backend/ongi/src/main/java/ongi/maum_log/dto/MaumLogPresignedResponseDto.java (1 hunks)
• backend/ongi/src/main/java/ongi/maum_log/dto/MaumLogUploadRequestDto.java (1 hunks)
• backend/ongi/src/main/java/ongi/maum_log/entity/MaumLog.java (1 hunks)
• backend/ongi/src/main/java/ongi/maum_log/repository/MaumLogRepository.java (1 hunks)
• backend/ongi/src/main/java/ongi/maum_log/service/MaumLogService.java (3 hunks)

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