fix(miner): allow nested lib/ paths in miner package checker

[james3773]

Closes #2332

Summary

• Extend scripts/check-miner-package.mjs allowlist regexes to accept nested lib/<subdir>/*.js artifacts (e.g. lib/calibration/index.js from the chore(miner-selfimprove): scaffold packages/gittensory-miner calibration module directory + shared types #2332 calibration scaffold).
• Without this, npm pack --dry-run includes the new subtree but the checker rejects it, breaking test/unit/check-miner-package.test.ts and CI validate-code.

Test plan

• git diff --check
• node scripts/check-miner-package.mjs
• npm run test:coverage -- test/unit/check-miner-package.test.ts

Made with Cursor

[superagent-security]

Superagent didn't find any vulnerabilities or security issues in this PR.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
⚠️ Please upload report for BASE (main@1102504). Learn more about missing BASE report.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3773   +/-   ##
=======================================
  Coverage        ?   93.29%           
=======================================
  Files           ?      317           
  Lines           ?    32368           
  Branches        ?    11872           
=======================================
  Hits            ?    30199           
  Misses          ?     1537           
  Partials        ?      632           

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