upgrade eslint to 9.x

Author: npalm

lambdas/eslint.config.js

@@ -0,0 +1,42 @@
+// @ts-check
+
+// Import required modules using CommonJS require syntax
+const { FlatCompat } = require('@eslint/eslintrc');
+const js = require('@eslint/js');
+const path = require('path');
+
+// Setup FlatCompat for backward compatibility with .eslintrc.* format
+const compat = new FlatCompat({
+  baseDirectory: __dirname,
+  recommendedConfig: js.configs.recommended,
+});
+
+// Create the ESLint 9.x flat config
+module.exports = [
+  js.configs.recommended,
+  ...compat.extends(
+    'plugin:@typescript-eslint/recommended'
+  ),
+  {
+    // Global linting settings
+    languageOptions: {
+      parser: require('@typescript-eslint/parser'),
+      parserOptions: {
+        ecmaVersion: 2022,
+        sourceType: 'module',
+      },
+    },
+    plugins: {
+      '@typescript-eslint': require('@typescript-eslint/eslint-plugin'),
+      'prettier': require('eslint-plugin-prettier'),
+    },
+    rules: {
+      'prettier/prettier': 'error',
+    },
+  },
+  {
+    // Files to ignore
+    ignores: ['**/node_modules/**', '**/dist/**', '**/.nx/**', '**/coverage/**'],
+  },
+];
+