Figure out how to make it JustWork™ instead of running a packager and a server

[robinheinze]

• node server is needed to connect to reactotron-core
  • there may be native ways to do this
  • add node command to the metro server

[joshuayoes]

I have an idea that we could bundle the original reactotron server in a node binary and then run it on start up.

[joshuayoes]

One crazy idea: use the same approach as MCP servers and spawn the server using npx on launch. I have a draft PR up to run the server. infinitered/reactotron#1585