docs: 📝 update README image link for improved visual representation

fix: 🐛 update CHANGELOG.md and Dockerfile for sing-box enhancements

feat: ✨ implement custom proxy subscription management and enhance configuration

feat: ✨ add CHANGELOG.md to document project updates and version history

feat: ✨ implement geo-filtering with whitelist and blacklist support

feat: ✨ add CLAUDE.md for project guidance and enhance HTTP proxy validation

feat: ✨ add SOCKS5 proxy support and enhance configuration

feat: ✨ update environment configuration and enhance WebUI logging

docs: 📝 update environment configuration and data directory documentation

feat: ✨ enhance proxy validation logic and update configuration parameters

feat: ✨ update README and remove Docker setup documentation; reorganize testing guides and add new sections for data directory and GitHub Actions CI/CD

fix: 🐛 update README and Docker setup documentation for GitHub Container Registry support

docs: 📝 reorganize README structure and update extension documentation section

feat: ✨ add environment variable support for proxy authentication and geo-blocking

docs: 📝 correct spelling of 'goproxy' to 'GoProxy' in README for consistency