New top-level nav section documenting OpenPencil's programmability:
- CLI: inspecting, exporting, analyzing, scripting (eval)
- JSX Renderer: elements, style props, visual diffing
- MCP Server: moved from Reference (setup + tool list)
- AI Chat: setup, 87 tools, example prompts
- Collaboration: room sharing, cursors, follow mode
Restructured sidebar:
- Programmable added to nav bar (7 locales)
- Context Menu moved from User Guide to Reference
- MCP and eval-command removed from Reference
