refactor: member relink and member_team initiation

[BlackBean99]

Summary

• 관련 있는 Issue를 태그해주세요.

Tasks

• 해당 PR에 포함된 작업을 작성해주세요.
• 해당 PR에 포함된 작업을 작성해주세요.

ETC

Screenshot

Summary by CodeRabbit

릴리스 노트

• 새로운 기능

  • OAuth 계정 복구 및 재연결 기능 추가
  • 멤버 팀 자동 초기화 및 기본 팀 할당 기능 추가

• 개선사항

  • 로그인 프로세스에서 멤버 팀 초기화 로직 강화
  • 로그인 후보자 선택 로직 개선으로 안정성 향상

[coderabbitai]

Caution

Review failed

Pull request was closed or merged during review

Walkthrough

회원 로그인 및 가입 흐름에 회원 팀 초기화를 추가하고, 고아 상태의 OAuth 회원에 대한 복구 로직을 도입하며, 삭제된 회원을 제외하도록 회원 선택 로직을 정제하고, OAuth 제공자 재연결 기능을 추가합니다.

Changes

Cohort / File(s)	Summary
Member Login and Authentication Services MemberLoginService.kt, AppleAuthService.kt, EmailPasswordAuthService.kt, MemberCommandService.kt	MemberTeamService 의존성을 추가하고 로그인/가입 시 회원 팀 초기화를 수행. 로그인 후보 선택에서 논리적으로 삭제된 회원(deletedAt != null)을 필터링. AppleAuthService와 MemberLoginService에서 고아 상태의 OAuth 회원 복구 로직 추가(recoverOrCreateMemberForOrphanedOAuth).
Member Team Service MemberTeamService.kt	MemberPersistencePort 의존성과 configurable defaultTeamId를 추가. 새로운 ensureMemberTeamInitialized(memberId) 메서드로 회원을 기본 팀에 자동 할당.
OAuth Service Layer MemberOAuthService.kt, MemberOAuthPersistencePort.kt	MemberOAuthService에 새로운 public 메서드 relinkMemberOAuthProvider(member, authAttribute) 추가. 포트 인터페이스에 relinkToMember(provider, externalId, member) 메서드 정의.
OAuth Persistence MemberOAuthRepository.kt	relinkToMember 메서드 구현으로 기존 OAuth 링크의 회원을 변경하는 기능 제공. 기존 id, externalId, provider는 유지하면서 member만 업데이트.

Sequence Diagram

sequenceDiagram
    participant Client
    participant AuthService as Auth Service
    participant MemberLoginSvc as Member Login Service
    participant MemberOAuthSvc as Member OAuth Service
    participant MemberTeamSvc as Member Team Service
    participant DB as Database

    Client->>AuthService: Login with OAuth Credentials
    AuthService->>MemberLoginSvc: selectLoginCandidate()
    MemberLoginSvc->>DB: Query member by email (exclude deletedAt != null)
    DB-->>MemberLoginSvc: Member or null
    alt Member not found
        MemberLoginSvc->>MemberLoginSvc: recoverOrCreateMemberForOrphanedOAuth()
        MemberLoginSvc->>DB: Create or find member
        DB-->>MemberLoginSvc: Member
        MemberLoginSvc->>MemberOAuthSvc: relinkMemberOAuthProvider()
        MemberOAuthSvc->>DB: Relink OAuth to member
        DB-->>MemberOAuthSvc: Success
    end
    MemberLoginSvc->>MemberTeamSvc: ensureMemberTeamInitialized(memberId)
    MemberTeamSvc->>DB: Check member's team assignment
    DB-->>MemberTeamSvc: Team or none
    alt No team assigned and default team configured
        MemberTeamSvc->>DB: Create MemberTeam with default team
        DB-->>MemberTeamSvc: Success
    end
    MemberTeamSvc-->>MemberLoginSvc: Initialization complete
    MemberLoginSvc-->>AuthService: Login successful
    AuthService-->>Client: Auth token

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Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~25 minutes

🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 11.54% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	PR 제목이 변경 사항의 주요 내용을 명확하게 요약합니다. 멤버 재연결 및 멤버 팀 초기화라는 두 가지 핵심 기능 추가를 정확하게 나타냅니다.

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✨ Finishing Touches

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• Commit unit tests in branch feat/#422

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