docs: add rel-002 release and transition REQ-011, REQ-012, REQ-015 to Implemented

Release: rel-002_20260511_operator-cli-tooling-and-baseline-docs-sync

Requirements Completed:
- REQ-011: baseline docs update for trex-basic contract (BAT-008 verification passed)
- REQ-012: service-token rotate CLI command (BAT-002 verification passed)
- REQ-015: broker credential CLI command group (BAT-005 verification passed)

Release Contents:
- Operator CLI tooling with service-token rotate and broker credential management
- Baseline documentation synchronized with trex-basic interface contract
- Complete v1 API and portfolio ownership model documentation

Documentation Updates:
- Create rel-002 release document with included batches and deployment notes
- Update docs/releases/index.md with release entry
- Add implementation evidence to REQ-011, REQ-012, REQ-015
- Update SRS index with Implemented status transitions and change log

docs/srs/Interface/req-012_service-token-rotate-cli.md

@@ -1,6 +1,6 @@
 # req-012: service-token rotate CLI 명령 구현
 
-- Status: Approved
+- Status: Implemented
 - Type: Interface
 - Priority: Medium
 - Owner: repository-maintainers
@@ -54,6 +54,41 @@
 
 ## Change Log
 
+### CHG-20260511-02
+- Date: 2026-05-11
+- Author: repository-maintainers
+
+#### Change Summary
+- Implemented 전환 — BAT-002 verification passed, confirm-req-implemented 게이트 통과
+
+#### Intent
+- BAT-002 verification.md에서 REQ-012 AC-1~6이 모두 PASS이고 blocking issue가 없음을 근거로 Implemented로 승격한다.
+
+#### Acceptance Criteria Delta
+- Added: none
+- Updated: none
+- Removed: none
+
+#### Impacted Area Delta
+- Docs: none
+- Modules: none
+- Tests: none
+
+#### Delivery Trace Delta
+- Batches:
+  - BAT-002 (release-candidate)
+- Releases:
+  - none
+
+#### Revalidation Impact
+- Reverification Needed: no
+- Existing Implementation Invalidated: no
+- Status Recommendation: implemented
+- Follow-up Action: tooling release에 포함 시 rotate 후 runtime_id 재조회 운영 메모 반영
+
+#### Validation Plan
+- BAT-002 verification.md의 REQ-012 AC-1~6 evidence와 Ready for Release: true 확인
+
 ### CHG-20260511-01
 - Date: 2026-05-11
 - Author: repository-maintainers

docs/srs/Interface/req-015_broker-credential-cli.md

@@ -1,6 +1,6 @@
 # req-015: CLI `credential` 명령 그룹 구현 (브로커 인증 정보 관리)
 
-- Status: Approved
+- Status: Implemented
 - Type: Interface
 - Priority: Medium
 - Owner: repository-maintainers
@@ -38,6 +38,41 @@
 
 ## Change Log
 
+### CHG-20260511-01
+- Date: 2026-05-11
+- Author: repository-maintainers
+
+#### Change Summary
+- Implemented 전환 — BAT-005 verification passed, confirm-req-implemented 게이트 통과
+
+#### Intent
+- BAT-005 verification.md에서 REQ-015 AC-1~5가 모두 passed이고 regression 없음이 확인되어 Implemented로 승격한다.
+
+#### Acceptance Criteria Delta
+- Added: none
+- Updated: none
+- Removed: none
+
+#### Impacted Area Delta
+- Docs: none
+- Modules: none
+- Tests: none
+
+#### Delivery Trace Delta
+- Batches:
+  - BAT-005 (release-candidate)
+- Releases:
+  - none
+
+#### Revalidation Impact
+- Reverification Needed: no
+- Existing Implementation Invalidated: no
+- Status Recommendation: implemented
+- Follow-up Action: tooling release에 포함 시 credential smoke 절차 포함
+
+#### Validation Plan
+- BAT-005 verification.md의 AC-1~5 passed evidence와 residual risk 없음 확인
+
 ### CHG-20260503-02
 - Date: 2026-05-03
 - Author: repository-maintainers