infra: migrate from eslint to oxlint

[Shinigami92]

Summary

This PR replaces ESLint with oxlint — a much faster linter written in Rust by the oxc project.

What changed:

• Removed 11 ESLint-related packages, added oxlint + oxlint-tsgolint (for type-aware linting)
• Migrated all rule configurations, file overrides, and ignore patterns to oxlint.config.ts
• Converted eslint-disable comments to oxlint-disable where the rule exists, removed them where it doesn't
• Updated VS Code extension recommendation, devcontainer, renovate grouping, documentation, and .gitignore
• Prettier stays as-is (runs standalone via pnpm prettier), a follow-up PR will look into oxfmt
• Type-aware linting is enabled via oxlint-tsgolint, so rules like consistent-type-exports, restrict-plus-operands, switch-exhaustiveness-check etc. all work with full type information

Performance: The lint step in CI went from 52s (next branch) to 1s (this PR) — a 52x speedup.

Rules that are no longer enforced

Not all ESLint rules have an oxlint equivalent yet. Below is a breakdown of what we're temporarily losing, grouped by how far away support is.

Rules not yet implemented (no type info needed)

These are on the oxc roadmap but don't have a concrete timeline:

Rule	What it does	Tracking
logical-assignment-operators	Enforce ||=, &&=, ??=	Listed as TODO in oxc#479
jsdoc/require-jsdoc	Require JSDoc on public API (src/**/*.ts) — this is a big one for us since it guards our public API docs	Listed as TODO in oxc#1170
jsdoc/sort-tags	Auto-sort JSDoc tags by our configured order (@template, @internal, @remark, @param, @returns, ...)	Listed as TODO in oxc#1170
jsdoc/tag-lines	Enforce blank lines between JSDoc tag groups (was off, but noting for completeness)	Listed as TODO in oxc#1170

Rules not yet implemented (need type-aware linting via tsgolint)

These rules require TypeScript type information. The oxc project has a companion tool called tsgolint for this, but it currently only supports a limited set of type-aware rules. None of ours are among them yet:

Rule	What it does	Tracking
typescript/naming-convention	Enforces our PascalCase for types/classes, T-prefix for type params convention	Closed in oxc (oxc#6361) because it needs type info, open in tsgolint#186
typescript/no-mixed-enums	Disallow mixing string and number members in enums	No tracking issue yet — would need to be filed
typescript/no-unsafe-argument	Disallow passing any to typed function params	No tracking issue yet
typescript/require-await (TS version)	Disallow async without await, with type-aware promise checking	Base ESLint version exists (oxc#479), TS-specific not tracked yet

Intentionally dropped (not needed with oxlint)

What	Why dropped
@stylistic/padding-line-between-statements	Stylistic formatting concern — oxlint has no @stylistic plugin. Closed as "not planned" (oxc#11435). Will be covered by oxfmt in the future.
eslint-plugin-file-progress	CI convenience only (progress bar during linting). Not needed — oxlint finishes in under a second even with type-aware linting.
eslint-plugin-prettier	Prettier is now run standalone via pnpm prettier --check . in CI. This was just the bridge between ESLint and Prettier. Will be replaced by oxfmt in a future PR.

Other notes

• test/require.spec.cts is ignored by oxlint due to a parser limitation with top-level await in .cts (CommonJS) files
• docs/.vitepress/components/api-docs/method.vue added to ignore list — oxlint's .vue support is limited
• cypress/ added to ignore list — separate tsconfig causes a parser error
• Two new rules from type-aware categories (no-unsafe-type-assertion, require-array-sort-compare) are explicitly turned off since they weren't in our original ESLint config — we can evaluate enabling them separately
• oxlint automatically respects .gitignore, so no need to duplicate those patterns in ignorePatterns

Test plan

• pnpm run lint passes with 0 warnings and 0 errors (176 rules, type-aware enabled)
• pnpm run test passes (51 test files, 51,621 tests)
• CI pipeline passes — lint job in 1s vs 52s on next

[netlify]

✅ Deploy Preview for fakerjs ready!

Name	Link
🔨 Latest commit	265aa50
🔍 Latest deploy log	https://app.netlify.com/projects/fakerjs/deploys/69cada869a85730008587bd6
😎 Deploy Preview	https://deploy-preview-3773.fakerjs.dev
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify project configuration.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.82%. Comparing base (94d6597) to head (265aa50).

Additional details and impacted files

@@            Coverage Diff             @@
##             next    #3773      +/-   ##
==========================================
- Coverage   98.88%   98.82%   -0.07%     
==========================================
  Files         886      886              
  Lines        3061     3061              
  Branches      556      556              
==========================================
- Hits         3027     3025       -2     
- Misses         30       32       +2     
  Partials        4        4              

Files with missing lines	Coverage Δ
src/internal/base64.ts	46.66% <ø> (ø)
src/internal/bind-this-to-member-functions.ts	100.00% <ø> (ø)
src/internal/deprecated.ts	100.00% <ø> (ø)
src/modules/helpers/index.ts	95.28% <ø> (ø)

... and 1 file with indirect coverage changes

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.