feat: visual artifact runtime for AI-generated inline visualizations
- Add bundle/apps/runtime.html: universal runtime that executes
AI-generated visualization code in a sandboxed context
- Pre-loads CDN libraries: Tabler CSS, Leaflet CSS+JS, Chart.js v4,
React 19 UMD, ReactDOM 19 UMD, Babel standalone 7
- Implements mcpBridge with JSON-RPC 2.0 protocol:
sendToHost, callTool (with UUID ids + Promise), sendMessage, resize
- executeVisual detects JSX/HTML/plain-JS paths via regex
- Auto-resize via requestAnimationFrame + scrollHeight + 32, capped at 800
- Initial ui/initialize handshake with runtime='visual-artifact' v1.0.0
- Listens for 'render' and legacy 'tool/input' methods
- Add tests/test_runtime_html.py: 61 tests covering all spec requirements
Ken
0751fbfa0a