chore(lint): migrate to Biome (ultracite) + lefthook

biome.jsonc

@@ -0,0 +1,64 @@
+{
+  "$schema": "./node_modules/@biomejs/biome/configuration_schema.json",
+  "extends": ["ultracite/biome/core", "ultracite/biome/vitest"],
+  "vcs": {
+    "enabled": true,
+    "clientKind": "git",
+    "useIgnoreFile": true
+  },
+  "files": {
+    "includes": ["src/**", "!**/lib", "!**/coverage"]
+  },
+  "formatter": {
+    "enabled": true,
+    "indentStyle": "space",
+    "indentWidth": 2,
+    "lineEnding": "lf",
+    "lineWidth": 80
+  },
+  "javascript": {
+    "formatter": {
+      "quoteStyle": "single",
+      "trailingCommas": "all",
+      "arrowParentheses": "asNeeded",
+      "semicolons": "always"
+    }
+  },
+  "linter": {
+    "rules": {
+      "style": {
+        // ESLint config left default-export preference unset.
+        "noDefaultExport": "off",
+        // The checksum logic uses String.prototype.substring (not the
+        // deprecated substr); converting to slice changes edge-case
+        // semantics, so keep substring in this validation library.
+        "noSubstr": "off",
+        // Files are named after their exported validator (validateCPF.ts);
+        // renaming would break the public import paths and git history.
+        "useFilenamingConvention": "off",
+        // tsconfig targets es2016; String.prototype.at() is es2022, so keep
+        // charAt(length - 1) for runtime compatibility of the published lib.
+        "useAtIndex": "off"
+      },
+      "performance": {
+        // src/index.ts and ie/index.ts are intentional public-API barrels.
+        "noBarrelFile": "off"
+      }
+    }
+  },
+  "overrides": [
+    {
+      // ie/index.ts builds a UF->validator registry by name from the states
+      // module; the namespace import + dynamic access is the intended shape.
+      "includes": ["src/validations/ie/index.ts"],
+      "linter": {
+        "rules": {
+          "performance": {
+            "noNamespaceImport": "off",
+            "noDynamicNamespaceImportAccess": "off"
+          }
+        }
+      }
+    }
+  ]
+}

lefthook.yml

@@ -0,0 +1,7 @@
+# https://lefthook.dev/configuration/
+pre-commit:
+  jobs:
+    - name: biome
+      glob: '**/*.{js,jsx,ts,tsx,json,jsonc}'
+      run: pnpm biome check --write --no-errors-on-unmatched {staged_files}
+      stage_fixed: true

package.json

@@ -22,43 +22,27 @@
   ],
   "scripts": {
     "build": "tsdown",
-    "format": "prettier --write \"src/**/*.ts\"",
-    "lint": "eslint --ext .js,.jsx,.ts,.tsx ./src",
+    "format": "biome format --write ./src",
+    "lint": "biome check ./src",
+    "lint:fix": "biome check --write ./src",
     "test": "vitest",
     "coverage": "vitest run --coverage",
     "test:e2e": "pnpm build && cd examples && pnpm install --ignore-workspace && pnpm start",
-    "release": "release-it"
+    "release": "release-it",
+    "prepare": "lefthook install"
   },
   "devDependencies": {
-    "@eslint/eslintrc": "^3.3.5",
-    "@eslint/js": "^10.0.1",
+    "@biomejs/biome": "2.5.0",
     "@release-it/conventional-changelog": "^11.0.1",
-    "@types/jest": "^30.0.0",
-    "@typescript-eslint/eslint-plugin": "^8.62.0",
-    "@typescript-eslint/parser": "^8.62.0",
     "@vitest/coverage-v8": "^4.1.9",
     "esbuild": "^0.28.1",
-    "eslint": "^10.5.0",
-    "eslint-config-airbnb-base": "^15.0.0",
-    "eslint-config-prettier": "^10.1.8",
-    "eslint-import-resolver-typescript": "^4.4.5",
-    "eslint-plugin-import": "^2.32.0",
-    "eslint-plugin-prettier": "^5.5.6",
-    "globals": "^17.7.0",
-    "husky": "^9.1.7",
-    "lint-staged": "^17.0.8",
-    "prettier": "^3.8.4",
+    "lefthook": "^2.1.9",
     "release-it": "^20.2.0",
     "release-it-pnpm": "^4.6.6",
     "tsdown": "^0.22.3",
     "typescript": "^6.0.3",
+    "ultracite": "^7.8.3",
     "vite": "^8.0.16",
     "vitest": "^4.1.9"
-  },
-  "lint-staged": {
-    "*.{js,json,jsx,ts,tsx}": [
-      "eslint",
-      "prettier --check"
-    ]
   }
 }