Replace top Nav with Sidebar, add lib/group.js for library grouping,
tokenized color/alert styles, and tighter Settings/Canvas export layout.
Adds @tabler/icons-react. Verified production build (standalone) passes,
so the Docker image built from this tree matches the local app.
Co-authored-by: Claude <claude-code@anthropic.com>
Self-contained Dockerized build for end users. Run via docker compose;
see README.md for setup. Source-only, no sample data or build artifacts.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>