feat(documents): hier 절 char_start offset (Path B) — md_content 점프 builder offset
플랜 ds-outline-anchor-b5 (g1~g6 코드). 핵심 ASME/법령 windowed 절의 0% 점프를
서버계산 char_start(builder offset)로 100% deterministic 점프로 전환.
- g1 migration 318: document_chunks.char_start INTEGER NULL (단일 statement, 멱등)
- g2 builder: char_start emit = FE 라인/offset 모델 미러(split('\n')+UTF-16 code unit+코드펜스 skip).
window-child=NULL, split-parent=heading offset, preamble=NULL, CR 미strip, NFC=telemetry.
node.text 보존(라인모델 hash-neutral) → hash_stable doc 보존. 단위테스트 7건.
- g3 persist+backfill 하이브리드:
* persist INSERT char_start
* update-char-start (g3-tU): hash_stable doc 비파괴 — 100% jump-target VERIFY(NEW-1) +
position-aligned PK UPDATE(NEW-2), 미달 doc DEMOTE → re-decompose 합류(NEW-4)
* --reprocess (g3-t2): md_content 출처(g0-t1) + jump-target-set 완료마커(B1) + B_jumptarget>=1(B3),
--doc 필수 else REFUSE. self-heal sweep(g3-t3).
- g4 /sections: char_start inner+outer SELECT + split-parent 노출(is_leaf OR %_split)
- g5 FE: resolveAnchorMap(BE-first, NEW-5 jump-target-candidate-scoped 폴백, C1 OR-exclude),
per-render-site basis guard(C3), endsWith('_split') 정정 + collapseWindows split-parent 흡수(C2).
단위테스트 25건(NEW-5/B4/C1/C2 포함).
- g6 hier_outline_quality_gate.py: read-only g-measure(verdict/B_jumptarget/hash_stable/dup/fence)
배포(g7: --no-deps, 스냅샷, UPDATE-only 32 + re-decompose 230∪demote, 정확도 게이트)는 별 ops 단계.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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