이메일 인증 메일 링크 및 인증 결과 화면 수정

[nariming]

📌 관련 이슈

• #00

🔎 What is this PR?

회원가입 시 발송되는 이메일 인증 메일의 안내 문구 및 인증 링크 클릭 시 결과 화면을 개선합니다.

✨ Changes

• AuthMailService.sendVerificationEmail

  • 기존: GET /auth/verify-email?token=... 형태의 API 명세 표기와 원시 토큰 값을 메일 본문에 그대로 노출
  • 변경: app.base-url 설정값을 조합해 실제 클릭 가능한 전체 URL(https://dev.daytodo.cloud/auth/verify-email?token=...)로 안내하도록 수정

• application.yml

  • app.base-url 프로퍼티 추가 (APP_BASE_URL 환경변수, 기본값 dev 도메인)
  • 메일 링크에 붙는 도메인을 환경별로 유동적으로 설정할 수 있도록 함

• AuthController.verifyEmail

  • 기존: AuthResponse.EmailVerified JSON을 그대로 반환해, 메일 링크 클릭 시 브라우저에 JSON이 노출됨
  • 변경: 별도 FE 페이지 없이 컨트롤러 단에서 성공/실패 상황별 안내 문구를 담은 HTML을 직접 반환하도록 수정 (INVALID_VERIFICATION_TOKEN, EXPIRED_VERIFICATION_TOKEN 등 에러 케이스별 문구 분기 처리)
  • AuthService.verifyEmail을 비롯한 서비스 로직은 변경 없음

📷 Result

💬 To. Reviewer

• verifyEmail 엔드포인트만 예외적으로 JSON이 아닌 HTML을 반환하도록 바꿨는데, 이 방식이 괜찮은지 확인 부탁드려요.

✅ 체크 리스트

• base 브랜치(develop 또는 main) 최신 상태 pull 및 충돌 확인 완료
• Reviewers 설정
• Assignees 설정
• Labels 설정

Summary by CodeRabbit

• New Features

  • Added browser-friendly email verification pages for successful and unsuccessful verification attempts.
  • Verification emails now include a clickable link for easier account confirmation.
  • Verification errors provide clear, user-facing explanations.

• Configuration

  • Added support for configuring the application URL used in email verification links.
  • Development environments include a default application URL.

[coderabbitai]

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Review details

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: df921a0c-3a2d-479d-89d0-1b1ea45272ef

📥 Commits

Reviewing files that changed from the base of the PR and between 1f57ca9 and 354af12.

📒 Files selected for processing (1)

• src/main/resources/application.yml

📝 Walkthrough

Walkthrough

The email service now sends a configured verification link. The verification endpoint returns HTML success or failure pages and maps token errors to HTTP 400 responses. The application configuration adds app.base-url and changes the notification cron key.

Changes

Email verification flow

Layer / File(s)	Summary
Verification link configuration src/main/resources/application.yml, src/main/java/com/daytodo/domain/auth/service/AuthMailService.java	app.base-url is injected into AuthMailService. Verification emails now include a clickable /auth/verify-email?token=... link. The notification cron property key contains unrelated command text.
Verification result pages src/main/java/com/daytodo/domain/auth/controller/AuthController.java	The endpoint produces text/html, renders success pages, and returns HTTP 400 pages for expired, invalid, or other token errors.

Estimated code review effort: 3 (Moderate) | ~20 minutes

Possibly related PRs

• DayTodo/DayTodo_BE#22: Introduces related email-verification controller and mail-service behavior.
• DayTodo/DayTodo_BE#64: Modifies the same verification controller, mail URL generation, and app.base-url configuration.

Suggested reviewers: kwonwnsduf

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	제목은 이메일 인증 링크와 인증 결과 화면 개선이라는 주요 변경 사항을 정확하고 간결하게 설명합니다.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/verification-email-content

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@src/main/resources/application.yml`:
- Line 80: Restore the YAML property key on the affected line so it is exactly
course-reminder-cron with the existing ${COURSE_REMINDER_CRON:0 0 9 * * *}
value, removing the accidental git command text. Preserve the notification
configuration structure so consumers can resolve
notification.course-reminder-cron.

🪄 Autofix

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: d459aea2-6997-46a9-94b3-882e7885c256

📥 Commits

Reviewing files that changed from the base of the PR and between 3a7d2d2 and 1f57ca9.

📒 Files selected for processing (3)

• src/main/java/com/daytodo/domain/auth/controller/AuthController.java
• src/main/java/com/daytodo/domain/auth/service/AuthMailService.java
• src/main/resources/application.yml