chore: release v0.1.0

[kelsos]

Summary

First minor release. Bumps `packages/plainfp/package.json` to `0.1.0` and adds the generated `CHANGELOG.md`.

What's in v0.1.0 (since v0.0.1)

🚀 Enhancements

• `Result.tap` / `Result.tapError` — closes the v1 scope gap for side-effect hooks on sync Result.
• `Option.tap` / `Option.tapNone` — symmetric pair on Option.
• `Option.all` / `Option.any` / `Option.zip` — API symmetry with `Result`.
• `Option.toResult` / `Result.toOption` — canonical interop between the two types.

🩹 Fixes

• `ResultAsync.allWithConcurrency` now propagates factory rejections instead of silently dropping slots (prior behaviour corrupted the output array).
• CI: `--allow-natives-syntax` reaches CodSpeed's Vitest worker via `execArgv` injection so benches actually run under Valgrind.

📖 Documentation

• Full TSDoc coverage across every public export (109 blocks).
• TypeDoc site auto-publishes to https://kelsos.net/plainfp/ on merge to main.
• README API map synced with current exports.

🔥 Performance / testing

• Bench coverage for Option, ResultAsync, and Records — every non-trivial namespace is now CodSpeed-tracked.
• Property-based tests via fast-check verifying functor/monad laws, pipe composition, Arrays invariants (~2,500 generated cases per CI run).
• Integration suite covering six realistic cross-module compositions (parse/validate/transform, batch fetch, retry+timeout, Option↔Result interop, data pipelines, tagged errors).

Post-merge

After merging, tag and let the release workflow fire:

```sh
git checkout main && git pull
git tag v0.1.0 && git push --tags
```

The `v0.1.0` tag triggers `.github/workflows/release.yml` which publishes to npm with provenance via the trusted-publisher OIDC flow and creates the GitHub Release with changelogen's notes.

Test plan

• All required CI checks pass (this PR contains no runtime changes — just version bump + CHANGELOG)
• After merge and tag: verify the release workflow completes successfully
• https://www.npmjs.com/package/plainfp shows 0.1.0 with a provenance badge
• https://kelsos.net/plainfp/ reflects the new version

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 91.68%. Comparing base (30549a3) to head (3176de9).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #13   +/-   ##
=======================================
  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)

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[codspeed-hq]

Merging this PR will not alter performance

✅ 48 untouched benchmarks

---

_{Comparing release/v0.1.0 (3176de9) with main (30549a3)}