Single MCP tool call builds any GNU Radio OOT module from a git repo
into a reusable Docker image. Generates a Dockerfile from template,
builds via Docker SDK, and tracks results in a persistent JSON registry.
New tools: install_oot_module, list_oot_images, remove_oot_image
Also changes launch_flowgraph default xmlrpc_port from 8080 to 0 (auto)
