Adds the Velxio VS Code extension skeleton with:
- Extension host: commands (Open/Compile/Run/Stop/Select Board),
WebView panel with postMessage bridge, FastAPI backend manager,
velxio.toml + diagram.json config parser, file watcher, serial
pseudo-terminal
- WebView: placeholder React app with board display and serial
monitor, ready for wiring to the real simulation engines
- Build system: esbuild for extension (94KB), Vite for webview (198KB)
- Wokwi-compatible diagram.json schema for future import support
Based on reverse-engineering of the Wokwi VS Code extension (v3.5.0).
Key differentiator: Velxio runs simulation 100% locally (avr8js/rp2040js
in WebView, QEMU for ESP32) vs Wokwi's cloud iframe approach.
Refs #4
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
David Montero Crespo