feat(core,cli): harden install engine and extend skill lint and interview eval

- update only touches the recorded project root; project installs do not
  follow symlinks or junctions; repeated --force rotates .orig backups;
  uninstall never deletes outside the recorded root
- run npm/npx without a shell on Windows and pin optional tool versions
- skip the update check in CI and non-interactive output
- lint: cross-document section pointers, preflight row ids, gate rule
  numbers, per-document size budgets, gate copy equality
- eval: scenarios S19-S21, route and read-cost rejudging, interpretation
  card judging, temp-dir previews and table-form cards no longer fail

build/eval/interview/test/transcripts/claude-s21-alt-cards.ndjson

@@ -0,0 +1,5 @@
+{"type":"system","subtype":"init","session_id":"sess-s21","tools":["Read","Write","Edit","Bash","Skill"],"model":"claude-sonnet"}
+{"type":"assistant","message":{"content":[{"type":"tool_use","id":"tu_1","name":"Skill","input":{"skill":"designpaca"}}]}}
+{"type":"assistant","message":{"content":[{"type":"tool_use","id":"tu_2","name":"Read","input":{"file_path":"refs/landing-mock.svg"}}]}}
+{"type":"assistant","message":{"content":[{"type":"text","text":"시안을 참고해 구조가 다른 방향 세 가지를 제안합니다.\n\n### 방향 A — 시안 그대로\n한 줄 컨셉: 왼쪽 표제 + 오른쪽 사진. 서체: Noto Serif KR / Pretendard.\n\n### 방향 B — 좌석 지도\n한 줄 컨셉: 좌석 배치도를 첫 화면에. 서체: IBM Plex Sans KR.\n\n### 방향 C — 시간표\n한 줄 컨셉: 이용 시간을 큰 표로. 서체: 고운바탕.\n\n어느 방향으로 갈까요? A/B/C 중 골라 주세요."}]}}
+{"type":"eval_turn_end","filesChanged":[]}