Fix lint-staged configuration and add .mjs ESLint support

Author: jdalton

.husky/pre-commit

@@ -1,5 +1,5 @@
 if [ -z "${DISABLE_PRECOMMIT_LINT}" ]; then
-  npm run lint-staged
+  pnpm run lint-staged
 else
   echo "Skipping lint due to DISABLE_PRECOMMIT_LINT env var"
 fi

.lintstagedrc.mjs

@@ -0,0 +1,6 @@
+export default {
+  '*.{cjs,cts,js,json,md,mjs,mts,ts}': [
+    'pnpm run lint -- --fix',
+    'biome format --write'
+  ]
+}

eslint.config.js

@@ -142,5 +142,11 @@ module.exports = [
       'sort-destructure-keys/sort-destructure-keys': 'error',
       'sort-imports': ['error', { ignoreDeclarationSort: true }]
     }
+  },
+  {
+    files: ['**/*.mjs'],
+    languageOptions: {
+      sourceType: 'module'
+    }
   }
 ]

package.json

@@ -95,8 +95,10 @@
     "validate-npm-package-name": "6.0.2",
     "vitest": "3.2.4"
   },
-  "overrides": {
-    "vite": "7.1.5"
+  "pnpm": {
+    "overrides": {
+      "vite": "7.1.5"
+    }
   },
   "engines": {
     "node": ">=18"
@@ -110,11 +112,5 @@
     "categories": [
       "levelup"
     ]
-  },
-  "lint-staged": {
-    "*.{cjs,cts,js,json,md,mjs,mts,ts}": [
-      "pnpm run lint -- --fix",
-      "pnpm run lint:fix:fast -- --no-errors-on-unmatched --files-ignore-unknown=true --colors=off"
-    ]
   }
 }