Add Linux support and fix Next.js rendering

Setup automated release system with pre-built binaries

- Add GitHub Actions workflow for automated releases
- Update install.sh to download pre-built binaries (faster installation)
- Auto-detect macOS architecture (Intel/Apple Silicon)
- Remove Go as prerequisite for installation
- Add comprehensive release documentation (RELEASE.md)
- Update README with new installation flow
- Remove Claude Code branding, position as standalone product

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

Co-Authored-By: Claude <[email protected]>