Adds a new MCP tool (devenv-only) that imports .penpot files into the
running Penpot instance. The tool downloads the file from a given URL,
stages it in the frontend's static directory, and triggers the import
via the ClojureScript REPL using the frontend's web worker infrastructure.
The temporary file is cleaned up after the import completes or fails.
Registered alongside CljsReplTool, sharing the same NreplClient instance.
Github #9217
Co-authored-by: Claude <noreply@anthropic.com>
