## Summary
ESLint v10.0.0 was released on February 7, 2026. The current
`peerDependencies` for `eslint-plugin-react-hooks` only allows up to
`^9.0.0`, which causes peer dependency warnings when installing with
ESLint v10.
This PR:
- Adds `^10.0.0` to the eslint peer dependency range
- Adds `eslint-v10` to devDependencies for testing
- Adds an `eslint-v10` e2e fixture (based on the existing `eslint-v9`
fixture)
ESLint v10's main breaking changes (removal of legacy eslintrc config,
deprecated context methods) don't affect this plugin - flat config is
already supported since v7.0.0, and the deprecated APIs already have
fallbacks in place.
## How did you test this change?
Ran the existing unit test suite:
```
cd packages/eslint-plugin-react-hooks && yarn test
```
All 5082 tests passed.
