static/frontend/eslint.config.js

import js from '@eslint/js'
import globals from 'globals'
import reactHooks from 'eslint-plugin-react-hooks'
import reactRefresh from 'eslint-plugin-react-refresh'
import tseslint from 'typescript-eslint'
import unusedImports from 'eslint-plugin-unused-imports'
import { defineConfig, globalIgnores } from 'eslint/config'

export default defineConfig([
  globalIgnores(['dist']),
  {
    files: ['**/*.{ts,tsx}'],
    extends: [
      js.configs.recommended,
      tseslint.configs.recommended,
      reactHooks.configs.flat.recommended,
      reactRefresh.configs.vite,
    ],
    plugins: {
      'unused-imports': unusedImports,
    },
    languageOptions: {
      ecmaVersion: 'latest',  // ES2025+ features
      sourceType: 'module',
      globals: globals.browser,
    },
    rules: {
      'unused-imports/no-unused-imports': 'error',
      '@typescript-eslint/no-unused-vars': ['error', { 
        argsIgnorePattern: '^_',
        varsIgnorePattern: '^_',
      }],
    },
  },
])