docs: dcy-034 거버넌스 마감 — REQ-102~108 Implemented, BAT-050/051 release-candidate

BAT-050(PR #31 ced7eda, core-A) + BAT-051(PR #32 07b393d, core-B) origin/main
머지 완료 및 QC(opus) PASS + 팀장 confirm-batch-verification 반영.

- REQ-102~108: Approved → Implemented (상태 필드 + CHG-20260626-01 Change Log)
- docs/srs/index.md: Register 상태 7건 갱신, Recent Change Log Summary 마감 1줄 추가
- docs/batches/index.md: BAT-050 in-delivery → release-candidate, BAT-051 행 신규 추가
- bat-050/index.md, bat-051/index.md: in-delivery → release-candidate
- 코드 변경 없음 (문서 상태 필드만)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VHtM5Ws1HKCKQ4JGi6GRb5

docs/batches/index.md

@@ -57,4 +57,5 @@
 | BAT-047 | standard | released | REQ-091, REQ-092, REQ-093, REQ-094 | dcy-031 | [bat-047](./bat-047_20260619_event-publisher-connection-reliability/) |
 | BAT-048 | standard | released | REQ-095, REQ-096, REQ-097 | dcy-032 | [bat-048](./bat-048_20260621_fill-price-backfill-guard-logging-alert-spike/) |
 | BAT-049 | standard | released | REQ-098, REQ-099, REQ-100, REQ-101 | dcy-033 | [bat-049](./bat-049_20260621_alarm-system-dcy-033/) |
-| BAT-050 | standard | in-delivery | REQ-102, REQ-103, REQ-104, REQ-107, REQ-108 | dcy-034 (core-A) | [bat-050](./bat-050_20260626_reconcile-warning-blocking-gate-core-a/) |
+| BAT-050 | standard | release-candidate | REQ-102, REQ-103, REQ-104, REQ-107, REQ-108 | dcy-034 (core-A) | [bat-050](./bat-050_20260626_reconcile-warning-blocking-gate-core-a/) |
+| BAT-051 | standard | release-candidate | REQ-105, REQ-106 | dcy-034 (core-B) | [bat-051](./bat-051_20260626_sync-verify-cli-cold-start-core-b/) |