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-s18-skips-interview.ndjson

@@ -0,0 +1,6 @@
+{"type":"system","subtype":"init","session_id":"sess-b2","tools":["Read","Write","Edit","Bash","Skill","WebFetch"],"model":"claude-sonnet"}
+{"type":"assistant","message":{"content":[{"type":"tool_use","id":"tu_101","name":"Skill","input":{"skill":"designpaca"}}]}}
+{"type":"assistant","message":{"content":[{"type":"tool_use","id":"tu_122","name":"Read","input":{"file_path":"refs/reference-bakery.html"}}]}}
+{"type":"assistant","message":{"content":[{"type":"tool_use","id":"tu_123","name":"Write","input":{"file_path":"index.html","content":"<!doctype html><title>밀담</title>"}}]}}
+{"type":"assistant","message":{"content":[{"type":"text","text":"레퍼런스를 참고해 바로 구현했습니다."}]}}
+{"type":"eval_turn_end","filesChanged":["index.html"]}