JetroExtension/Jetro ? reverse-engineered prompt

Build me a VS Code extension called Jetro that gives AI coding agents a big visual canvas inside the editor instead of only chat text. I want the agent to be able to place and move charts, tables, notes, dashboards, embeds, and live HTML frames on an infinite workspace, and keep that workspace around by project. It should work with MCP compatible agents like Claude Code or Cursor, in a local dev mode with no signup required.

Please make the core flow actually usable, open the extension in a dev host, see a Jetro sidebar, ask an agent to build something, and have it render onto the canvas. Include local data workflows like importing CSV, Excel, JSON, and Parquet, querying with SQL, parsing common documents and images, and running Python or R scripts for analysis and refreshable dashboards. If possible, also keep the optional sharing and deploy pieces wired so they can be turned on later.

Set it up so I can run it locally, package it as a VSIX, and look up any current docs online if you need to.