extract-refs

참조 ID 추출/매핑 (U1)

입력: 파일 또는 디렉토리 ($ARGUMENTS)

추출 패턴: US-NNN, BR-NNN, FR-NNN, AC-NNN, ADR-NNN, TC-NNN, TASK-NNN

출력

reference_index:
  {ID}: { source: "{문서}", section: "{섹션}", text: "{내용}" }

cross_references:
  - from: "{문서} > {위치}"
    to: "{ID}"
    type: "implements" | "verifies"

orphan_references:
  - location: "{문서} > {위치}"
    references: "{ID}"
    issue: "정의되지 않음"

next_available_ids:
  {접두사}: "{다음 번호}"

저장: specs/registry.md