코스발견 배너 Firestore → 서버 API 전환

[unam98]

작업 배경

• Android/iOS로 분리돼 있던 Firebase 프로젝트를 runnect-ios 단일 프로젝트로 통합하는 과정에서, 새 프로젝트에 Firestore API가 비활성화돼 있어 코스발견 배너가 안 뜨는 회귀가 발생함
• 원인 파악 결과 RemoteBannerDataSource가 아직 Firestore를 직접 참조하는 구코드였고, 이를 자체 서버 API로 전환하는 작업이 feature/banner-server-api-migration 브랜치에 이미 완성돼 있었지만 develop에 머지되지 않은 상태였음
• 해당 브랜치 커밋(77b6e0ec)을 최신 develop 기준으로 cherry-pick하여 반영, Firestore 의존성 자체를 제거

변경 사항

영역	내용
BannerService.kt (신규)	/api/banner 서버 엔드포인트 Retrofit 인터페이스
ResponseGetBanner.kt (신규)	배너 응답 DTO
RemoteBannerDataSource.kt	Firestore addSnapshotListener 대신 BannerService.getBanners() 호출로 교체
ServiceModule.kt	FirebaseFirestore DI 프로바이더 제거, BannerService 프로바이더 추가

영향 범위

• 코스발견 탭 배너 데이터 소스 전체 변경 (실시간 Firestore 구독 → 1회성 REST 호출)
• Firestore 관련 코드/의존성이 이 기능에서 완전히 제거됨 (Firebase 프로젝트가 무엇이든 영향 없음)

Test Plan

• ./gradlew :app:assembleDebug 빌드 성공
• 실기기 설치 후 logcat으로 GET https://api.runnect.site/api/banner 200 응답 및 배너 3건 정상 파싱 확인
• 실기기 코스발견 탭에서 배너 정상 노출 육안 확인

🤖 Generated with Claude Code

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📥 Commits

Reviewing files that changed from the base of the PR and between d7cb241 and b6539c3.

📒 Files selected for processing (4)

• app/src/main/java/com/runnect/runnect/data/dto/response/ResponseGetBanner.kt
• app/src/main/java/com/runnect/runnect/data/service/BannerService.kt
• app/src/main/java/com/runnect/runnect/data/source/remote/RemoteBannerDataSource.kt
• app/src/main/java/com/runnect/runnect/di/ServiceModule.kt

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