ci: add js-tooling drift check (doctor) to CI

[rtorcato]

Shared build/lint/TS/test/release config comes from @rtorcato/js-tooling. Local configs can silently drift from the standard. npx @rtorcato/js-tooling doctor detects this — run it in CI so drift fails fast, same guarantee js-common and browser-common get.

Acceptance

• Add a doctor step/job to .github/workflows/ci.yml running npx @rtorcato/js-tooling doctor
• CI fails on drift
• Verify it passes on current main (fix any existing drift it reports)