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/base/image-uploader/utils.ts

@@ -2,7 +2,7 @@
 
 import { upload } from '@/service/base'
 
-type ImageUploadParams = {
+interface ImageUploadParams {
   file: File
   onProgressCallback: (progress: number) => void
   onSuccessCallback: (res: { id: string }) => void