chore(lint): configure lint and prittier

.prettierrc

@@ -0,0 +1,5 @@
+{
+  "printWidth": 120,
+  "trailingComma": "all",
+  "singleQuote": true
+}

eslint.config.mjs

@@ -0,0 +1,49 @@
+import globals from 'globals';
+import pluginJs from '@eslint/js';
+import tseslint from 'typescript-eslint';
+import eslintPluginPrettierRecommended from 'eslint-plugin-prettier/recommended';
+export default [
+  {
+    files: ['**/*.{js,mjs,cjs,ts}'],
+    rules: {
+      // Enforce 2-space indentation
+      indent: ['error', 2],
+
+      // Enforce semicolons at the end of statements
+      semi: ['error', 'always'],
+
+      // Prefer single quotes for strings
+      quotes: ['error', 'single', { avoidEscape: true }],
+
+      // Enforce consistent spacing before function parentheses
+      'space-before-function-paren': ['error', 'never'],
+
+      // Disallow unused variables
+      'no-unused-vars': ['warn', { argsIgnorePattern: '^_' }],
+
+      // Prefer `const` over `let` where possible
+      'prefer-const': 'error',
+
+      // Disallow `console` except for warning or error messages
+      'no-console': ['warn', { allow: ['warn', 'error'] }],
+
+      // Encourage using `arrow functions` where appropriate
+      'prefer-arrow-callback': 'error',
+
+      // Disallow `var` (use `let` or `const`)
+      'no-var': 'error',
+
+      // Enforce consistent spacing around operators
+      'space-infix-ops': 'error',
+
+      // Encourage the use of strict equality (`===`)
+      eqeqeq: ['error', 'always'],
+
+      // '@typescript-eslint/no-explicit-any': 'off',
+    },
+  },
+  { languageOptions: { globals: globals.browser } },
+  pluginJs.configs.recommended,
+  ...tseslint.configs.recommended,
+  eslintPluginPrettierRecommended,
+];