* build: replace eslint with oxlint and add oxfmt
Replace ESLint and its plugin ecosystem with oxlint (oxc.rs).
Add oxfmt alongside oxlint for JS/TS formatting and import sorting.
- Consolidate root .eslintrc.json plus 13 nested configs into .oxlintrc.json
- script/lint.js spawns oxlint binary directly instead of ESLint Node API
- Per-process no-restricted-imports rules preserved as oxlintrc overrides
- mocha/no-exclusive-tests replaced by in-repo plugin (no-only-tests.mjs)
- docs ESLint pass replaced by inline node: protocol check in lint.js
- .oxfmtrc.json matching repo style (single quotes, semicolons, 2-space)
- yarn lint:fmt (oxfmt --check) chained into yarn lint
- yarn format (oxfmt --write) for local fixup
- lint-staged runs oxfmt --write on staged JS/TS files
This commit contains only rule/tooling infrastructure changes and is
intended to be cherry-picked to other maintenance branches, where
formatting and lint fixes can be applied separately.
Manual backport of electron/electron@e1af67c698 (#50691) and
electron/electron@3c7fd34f47 (#50692).
* chore: apply oxfmt and oxlint formatting changes
Run oxfmt --write and oxlint --fix across all JS/TS sources to
apply the new formatting and lint rules from the previous commit.
* chore: remove accidentally-included CLAUDE.md
cdecff094e