feat: migrate ESLint to v9 flat config

- Replace .eslintrc.json with eslint.config.mjs
- Simplify configuration using @antfu/eslint-config
- Add necessary ESLint plugin dependencies
- Disable overly strict style rules
- Set package.json type to module for ESM support
- Fix ESLint disable comment format

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

app/components/workflow/editor/base.tsx

@@ -8,7 +8,7 @@ import ToggleExpandBtn from './toggle-expand-btn'
 import useToggleExpend from './use-toggle-expend'
 import { Clipboard, ClipboardCheck } from '@/app/components/base/icons/line/files'
 
-type Props = {
+interface Props {
   className?: string
   title: JSX.Element | string
   headerRight?: JSX.Element