Upgrade & reconfigure ESLint

Author: f2face

.eslintignore

@@ -0,0 +1,16 @@
+import globals from 'globals';
+import pluginJs from '@eslint/js';
+import tseslint from 'typescript-eslint';
+import eslintConfigPrettier from 'eslint-config-prettier';
+
+/** @type {import('eslint').Linter.Config[]} */
+export default [
+    { files: ['**/*.{js,mjs,cjs,ts}'] },
+    { languageOptions: { globals: globals.browser } },
+    pluginJs.configs.recommended,
+    ...tseslint.configs.recommended,
+    eslintConfigPrettier,
+    {
+        ignores: ['node_modules/**/*.*', 'lib/**/*.*', 'tests'],
+    },
+];

.eslintrc

@@ -43,18 +43,20 @@
         "@aws-sdk/s3-request-presigner": "^3.709.0"
     },
     "devDependencies": {
+        "@eslint/js": "^9.16.0",
         "@tsconfig/recommended": "^1.0.8",
         "@types/jest": "^29.5.14",
         "@types/node": "^22.10.1",
-        "@typescript-eslint/eslint-plugin": "^7.18.0",
-        "@typescript-eslint/parser": "^7.18.0",
         "dotenv": "^16.4.7",
-        "eslint": "^8.57.1",
+        "eslint": "^9.16.0",
         "eslint-config-prettier": "^9.1.0",
+        "globals": "^15.13.0",
         "jest": "^29.7.0",
         "prettier": "^3.4.2",
         "rimraf": "^6.0.1",
         "ts-jest": "^29.2.5",
-        "typescript": "^5.7.2"
+        "typescript": "^5.7.2",
+        "typescript-eslint": "^8.18.0"
     }
 }
+