fix(ci): run publint/attw from package dir so the release workflow works

[kelsos]

Summary

The v0.1.0 release workflow failed before reaching npm. The publint step was written as:

- run: pnpm --filter plainfp dlx publint

But pnpm dlx ignores filter flags and actively rejects --recursive (which -r/--filter introduces into its options), so the step fails with:

ERROR Unknown option: 'recursive'

Fix

Run the packaging-hygiene checks from the package's own directory via working-directory:, same pattern already used by the publish + GitHub Release steps below. Also add the attw check that ci.yml runs — release should verify the same packaging quality gates.

- name: Check packaging hygiene (publint + attw)
  working-directory: packages/plainfp
  run: |
    pnpm dlx publint
    pnpm dlx @arethetypeswrong/cli@0.18.2 --pack . --profile esm-only

Verified locally

Ran the full release sequence locally against `packages/plainfp` at 0.1.0:

Step	Status
Typecheck	✅
Lint	✅
Tests (276)	✅
Build	✅
publint	✅ "All good!"
attw (esm-only profile)	✅ all 15 subpath exports green
pnpm publish --dry-run	✅ plainfp@0.1.0, 52.9 KB tarball, 61 files

Recovery for v0.1.0

Once this merges, I'll delete the failed tag and re-tag from the new main:

git tag -d v0.1.0
git push --delete origin v0.1.0
git checkout main && git pull
git tag v0.1.0
git push --tags

The tag push fires release.yml (with the fix) → publishes with provenance + creates the GitHub Release.

Test plan

• All required CI checks pass
• After merge + retag: release workflow runs to completion
• https://www.npmjs.com/package/plainfp shows 0.1.0 with a provenance attestation

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 91.68%. Comparing base (3176de9) to head (b24cfb3).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #14   +/-   ##
=======================================
  Coverage   91.68%   91.68%           
=======================================
  Files          23       23           
  Lines         397      397           
  Branches       90       90           
=======================================
  Hits          364      364           
  Misses         11       11           
  Partials       22       22           

Flag	Coverage Δ
unittests	91.68% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[codspeed-hq]

Merging this PR will not alter performance

✅ 48 untouched benchmarks

---

_{Comparing fix/release-workflow (b24cfb3) with main (3176de9)}