docs: record governance changes for REQ-008/017/023 defect fixes and add REQ-029

- REQ-017 CHG-20260518-01: document get_portfolio_by_name_and_user postgres
  defect fix; status Implemented preserved
- REQ-008 CHG-20260518-01: document insert_ledger_trade postgres defect fix
  (HTTP 500 on ledger write-back); status Approved, re-verification required
- REQ-023 CHG-20260518-01: add AC-5 (portfolio update --daemon-id CLI) and
  AC-6 (portfolio list daemon-id display); expand Impacted Area
- REQ-029: new Interface REQ for portfolio list borderless output format;
  status Approved, minor-change fast path
- SRS index: register REQ-029, advance Next ID to REQ-030, update Recent
  Change Log Summary

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

docs/srs/Interface/req-017_portfolio-cli-name-user-identification.md

@@ -43,6 +43,41 @@
 
 ## Change Log
 
+### CHG-20260518-01
+- Date: 2026-05-18
+- Author: repository-maintainers
+
+#### Change Summary
+- `get_portfolio_by_name_and_user()` 미구현 결함 수정 — PostgresPortfolioRepository에 메서드가 존재하지 않아 실 DB 환경에서 모든 name+user 식별 경로가 AttributeError로 실패하던 결함을 수정. Status Implemented 유지.
+
+#### Intent
+- REQ-017 AC-2~4(name+user 조합으로 portfolio 조회)를 구현한 CLI 코드와 FakeRepo는 완성되어 있었으나, PostgresPortfolioRepository에 `get_portfolio_by_name_and_user()`가 누락되어 실 DB 환경에서 AttributeError가 발생했다. 결함을 수정해 Implemented 근거를 복원한다.
+
+#### Acceptance Criteria Delta
+- Added: 없음
+- Updated: 없음
+- Removed: 없음
+
+#### Impacted Area Delta
+- Docs: 없음
+- Modules:
+  - `app/repositories/postgres.py`: `get_portfolio_by_name_and_user(owner_user_id, name)` 추가 (`_SELECT_PORTFOLIO WHERE owner_user_id = %s AND name = %s`)
+  - `app/repositories/portfolio_repository.py`: Protocol에 `get_portfolio_by_name_and_user` 선언 추가
+- Tests: `tests/test_portfolio_uuid.py` 14 passed (기존 FakeRepo 기반 테스트는 영향 없음)
+
+#### Delivery Trace Delta
+- Batches: BAT-006 (release-candidate) — 결함 수정이 BAT-006 delivery scope에 포함
+- Releases: REL-006 (draft) — 배포 전 결함 수정 완료
+
+#### Revalidation Impact
+- Reverification Needed: no
+- Existing Implementation Invalidated: no
+- Status Recommendation: keep-current (Implemented)
+- Follow-up Action: 없음 (실 DB 통합 테스트로 AC-2~4 재확인 권장)
+
+#### Validation Plan
+- `pfhub portfolio status <name> --user <user>`, `pfhub portfolio buy <name> --user <user>` 등 name+user 식별 명령이 실 DB 환경에서 정상 응답하는지 확인
+
 ### CHG-20260511-01
 - Date: 2026-05-11
 - Author: repository-maintainers