- Clarify database mode details in both README.md and README_EN.md
- Highlight default local database mode (IndexedDB) usage
- Remove redundant recommendation for local database configuration
- Add explanation of Supabase cloud database option
- Update notes about Vercel deployment and backend API
- Modify vercel.json to set default local database environment variable
- Add .vercelignore to exclude unnecessary files from Vercel deployment
- Update README.md and README_EN.md with detailed Vercel deployment instructions
- Create vercel.json with deployment configuration
- Add one-click deployment button and multiple deployment methods
- Include environment variable setup guidance
- Highlight Vercel deployment advantages and important notes
- Improve documentation for easier deployment and setup process
Enhances project deployment flexibility and provides clear, step-by-step guidance for users looking to quickly deploy the application on Vercel.