- Add NEXT_PUBLIC_NIP95_UPLOAD_URL to README environment variables section
- Add NIP-95 upload service documentation with examples
- Create .env.example file with all required environment variables
- Improve error message to guide users to README for setup instructions
- All TypeScript checks pass
- Extract PresentationFormHeader to reduce PresentationForm line count
- Add all missing translations to public/locales files
- Update Bitcoin address help text to specify 'excluding fees'
- All TypeScript and linter checks pass
