feat: add reactNative preset + tsconfig (react-native-web ready)

[a-tokyo]

What

Adds a fifth stack preset, reactNative, plus a matching tsconfig/react-native.json, so React Native (and react-native-web) projects get the same SonarQube-compatible house style as the other stacks.

Why

The team uses React Native heavily. RN is just React + TS/JS, and SonarQube ships no RN-specific rules, so the existing react guardrails apply verbatim. A dedicated preset earns its place by:

1. declaring the RN runtime globals (__DEV__, Hermes) so they don't trip no-undef (verified: __DEV__ is the only global antfu's browser+node set doesn't already cover);
2. shipping a matching tsconfig without the Vite-specific bits;
3. giving RN a documented, named entry point.

react-native-web

Universal RN+web codebases are supported with no extra ESLint config — RNW runs in the browser, so antfu's browser globals cover the web APIs, __DEV__ is declared, and .web.tsx/.web.ts files already match the preset globs. The tsconfig keeps the DOM lib for the web target (TypeScript can't vary lib per file). Native-only projects can override lib to drop DOM. See docs/react-native.md.

Deferred: RN-idiom style rules (blocked on ESLint 10)

The style rules (no-inline-styles, no-color-literals, no-unused-styles, split-platform-components, …) live only in eslint-plugin-react-native, which crashes on ESLint 10 — verified against 10.7: 5 of 7 rules call the removed context.getSourceCode()/getFilename() APIs. @react-native/eslint-plugin has no style rules. The full plan to add them once the ecosystem supports ESLint 10 is in docs/react-native.md.

Changes

• eslint/react-native.js, eslint/index.js export, package.json exports (./eslint/react-native, ./tsconfig/react-native.json)
• tsconfig/react-native.json (extends base, jsx: react-jsx, DOM lib for RNW)
• test/fixtures/react-native/ + a new presetSuite case and a .js guard asserting __DEV__ is declared as a global (the .tsx clean test can't catch this — no-undef is off in TS)
• README.md + docs/react-native.md (RNW notes + deferred-rules upgrade path)

No new runtime dependency added.

Verification

• npm test → 11/11 pass (new react-native suite: clean = 0 errors; dirty trips no-console + react/exhaustive-deps; __DEV__ guard passes)
• npm run lint → clean
• Manual: __DEV__ in a .js file produces no no-undef

🤖 Generated with Claude Code

[Copilot]

Pull request overview

Adds first-class React Native support to the @zoldytech/javascript ESLint/tsconfig “house style” package by introducing a dedicated reactNative preset and a matching tsconfig/react-native.json, with explicit support for react-native-web.

Changes:

• Introduces eslint/react-native.js preset that mirrors the existing React preset and adds RN runtime globals (__DEV__, HermesInternal).
• Adds tsconfig/react-native.json (extends base, jsx: react-jsx, DOM libs retained for RNW).
• Adds a new react-native fixture + test coverage (including a JS-only guard for no-undef on __DEV__) and documents behavior in README/docs.

Reviewed changes

Copilot reviewed 11 out of 11 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
tsconfig/react-native.json	New RN-focused tsconfig extending base, aligned for RN + RNW usage.
eslint/react-native.js	New reactNative() flat-config preset (React parity + RN globals + sonar/prettier layers).
eslint/index.js	Exports reactNative from the main ESLint entrypoint.
package.json	Adds exports for ./eslint/react-native and ./tsconfig/react-native.json.
test/presets.test.js	Adds react-native preset suite and a JS fixture test guarding __DEV__ global.
test/fixtures/react-native/eslint.config.mjs	Fixture ESLint config using the new preset.
test/fixtures/react-native/clean.tsx	Clean RN TSX fixture.
test/fixtures/react-native/dirty.tsx	Dirty RN TSX fixture to assert expected rule failures.
test/fixtures/react-native/dev-global.js	JS fixture ensuring __DEV__ doesn’t trigger no-undef.
README.md	Documents the new preset + tsconfig availability and RN/RNW positioning.
docs/react-native.md	New detailed RN/RNW docs and deferred rule plan.

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[Copilot]

Pull request overview

Copilot reviewed 11 out of 11 changed files in this pull request and generated no new comments.