batch drift 정합 — REL-001(BAT-001~016)·REL-002(BAT-017) released에 맞춰 batches/index 및 개별 index 상태를 release-candidate→released 동기화(17건). README: bootstrap 문구 제거, dcy-007 엔드포인트(GET /trades·/pnl/realized) 추가, planned-next 현행화. 코드 무변경. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01VHtM5Ws1HKCKQ4JGi6GRb5