fix: 리뷰 목록이 cursor null을 첫 페이지로 처리

[chanwoo7]

배경

• 이슈 #483입니다. productReviews·storeReviews의 cursor는 SDL에서 nullable인데, cursor: null을 보내면 첫 페이지 대신 400(INVALID_CURSOR·INVALID_LIKES_CURSOR)이 났습니다.
• service가 input.cursor를 그대로 넘기고 아래에서 !== undefined로만 걸러, null이 커서 파싱으로 들어갔습니다.
• 구매자 FE는 첫 페이지에 cursor를 보내지 않아 지금 깨진 화면은 없습니다.

변경

• review-listing.service.ts에서 input.cursor ?? undefined로 정규화했습니다.
• 두 DTO의 cursor를 string | null로 선언했습니다(정규화가 빠지면 tsc가 막도록).

테스트

• 두 범위(상품·매장) × 두 정렬(LATEST·LIKES)에서 cursor: null이면 첫 페이지를 돌려주는 4건을 추가했습니다.
  • 수정을 되돌리면 4건 모두 커서 형식 오류로 실패하는 것을 확인했습니다.

플랜 대조

플랜 1번 불릿	상태
cursorRaw: input.cursor ?? undefined	한 것
회귀: 두 쿼리 × LATEST·LIKES에서 cursor null → 첫 페이지	한 것

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[github-actions]

🧹 knip — dead-code 리포트

Unused exported types (1)

전체 리포트

Unused exported types (1)
RateLimitPolicy  type  src/global/rate-limit/index.ts:4:8

청소 후보(오탐 가능) · 기준 docs/guide/architecture-conventions.md

[github-actions]

🩺 NestJS Doctor — 90/100 (Excellent)

진단 470건 (error 12).

Category	error	warning	info
architecture	1	1	42
correctness	0	261	0
performance	0	30	28
schema	0	0	75
security	11	21	0

architecture / security 상위 항목

• error architecture/architecture/no-manual-instantiation: Manual instantiation of 'OutboxRepository' detected. Use dependency injection instead.
• info architecture/architecture/no-barrel-export-internals: Barrel file re-exports internal type 'IAuditLogRepository'.
• warning security/security/no-exposed-env-vars: Direct 'process.env.NODE_ENV' access in 'AuthController'. Use ConfigService instead.
• warning security/security/require-guards-on-endpoints: Endpoint 'start' has no @UseGuards() at class or method level.
• warning security/security/require-guards-on-endpoints: Endpoint 'callback' has no @UseGuards() at class or method level.
• warning security/security/require-guards-on-endpoints: Endpoint 'refresh' has no @UseGuards() at class or method level.
• warning security/security/require-guards-on-endpoints: Endpoint 'logout' has no @UseGuards() at class or method level.
• warning security/security/require-guards-on-endpoints: Endpoint 'sellerLogin' has no @UseGuards() at class or method level.
• warning security/security/require-guards-on-endpoints: Endpoint 'sellerRefresh' has no @UseGuards() at class or method level.
• warning security/security/require-guards-on-endpoints: Endpoint 'sellerLogout' has no @UseGuards() at class or method level.
• warning security/security/require-guards-on-endpoints: Endpoint 'devIssueToken' has no @UseGuards() at class or method level.
• warning security/security/require-guards-on-endpoints: Endpoint 'adminLogin' has no @UseGuards() at class or method level.
• warning security/security/require-guards-on-endpoints: Endpoint 'adminRefresh' has no @UseGuards() at class or method level.
• warning security/security/require-guards-on-endpoints: Endpoint 'adminLogout' has no @UseGuards() at class or method level.
• warning security/security/require-guards-on-endpoints: Endpoint 'getJwks' has no @UseGuards() at class or method level.

오탐 포함 가능 · 기준 docs/guide/architecture-conventions.md

[github-actions]

Coverage report

St.❔	Category	Percentage	Covered / Total
🟢	Statements	97.9%	10043/10258
🟢	Branches	92.41%	3785/4096
🟢	Functions	97.4%	2020/2074
🟢	Lines	98.5%	9137/9276

Test suite run success

3727 tests passing in 355 suites.

Report generated by 🧪jest coverage report action from 9c5a685

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Codecov Report

✅ All modified and coverable lines are covered by tests.

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