Refactor code structure for improved readability and maintainability

.eslintrc.cjs

@@ -0,0 +1,17 @@
+module.exports = {
+  root: true,
+  env: {
+    node: true,
+    es2021: true,
+  },
+  parser: '@typescript-eslint/parser',
+  parserOptions: {
+    ecmaVersion: 2021,
+    sourceType: 'module',
+  },
+  plugins: ['@typescript-eslint', 'prettier'],
+  extends: ['eslint:recommended', 'plugin:@typescript-eslint/recommended', 'prettier'],
+  rules: {
+    'prettier/prettier': 'error',
+  },
+};