docs(rel-003): M3 daemon-scoped 크레덴셜 릴리즈 문서 + Step2 ops 런북

REL-003(dcy-010/011 + WAC #15 동반) draft + Step2 마이그레이션 핸드오프(프리체크·롤백·go/no-go).
내일 ops 윈도우용. 미푸시(사장님 결재 시 release와 함께 push).

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

docs/releases/index.md

@@ -10,3 +10,4 @@
 | --- | --- | --- | --- | --- | --- |
 | REL-001 | app-service | released | BAT-001~016 (전체 통합) | 2026-05-21 | [rel-001](./rel-001_20260521_v1-api-full-surface.md) |
 | REL-002 | app-service | feedback-captured | BAT-017 (dcy-007 M1: 거래내역+실현PnL API) | 2026-06-19 | [rel-002](./rel-002_20260619_trade-history-and-pnl-api.md) |
+| REL-003 | app-service | draft | BAT-018~022 (dcy-008/009/010/011: WAC조회+데몬목록+daemon-scoped 인증정보+관리API) | 2026-06-28 | [rel-003](./rel-003_20260628_daemon-credential-and-admin-api.md) |