chore(deps-dev): bump react from 19.3.0 to 19.3.1 (#944)

* chore(deps-dev): bump react from 19.3.0 to 19.3.1

Bumps [react](https://github.com/react/react/tree/HEAD/packages/react) from 19.3.0 to 19.3.1.
- [Release notes](https://github.com/react/react/releases)
- [Changelog](https://github.com/react/react/blob/main/CHANGELOG.md)
- [Commits](https://github.com/react/react/commits/v19.3.1/packages/react)

---
updated-dependencies:
- dependency-name: react
  dependency-version: 19.3.1
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

* chore(deps-dev): bump react-dom from 19.3.0 to 19.3.1 alongside react

react-dom/client throws "Incompatible React versions" at import unless
`react` and `react-dom` are the exact same version, so bumping react to
19.3.1 alone fails every test file that renders: 25 test files failed
on this PR against 1 on main. #907 (react-dom alone) was closed for the
same reason in reverse, so Dependabot will not propose react-dom 19.3.1
again; it moves here, with react.

bun.lock only: react-dom 19.3.1 keeps `scheduler ^0.28.0` and peers on
`react ^19.3.1`. `bun install --frozen-lockfile` accepts it and a plain
`bun install` leaves the lock byte-identical. With it, the unit suite
fails only the four fixture-pin cases #950 fixes on main.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KYzGfVxwGZMvdyyi97XyZY

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: NiveditJain <nivedit@exosphere.host>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

Author: 3 people