Specify transport type on startup

[aaronpowell]

Is your feature request related to a problem? Please describe.
When you first run the inspector it defaults to stdio as the transport, unless previously specified. So if you run: npx -y @modelcontextprotocol/inspector http://localhost:1234/sse it will default to stdio and upon changing the dropdown, set it to the default of http:''localhost:3001/sse, removing your default value.

Describe the solution you'd like
When running inspector you should be able to specify the transport type to use, or it should be inferred from the server provided (eg: if it's http(s) prefixed, using SSE, otherwise use stdio).

Describe alternatives you've considered
I can't find any way in the code that this can be set.

Additional context
N/A

[cliffhall]

When running inspector you should be able to specify the transport type to use, or it should be inferred from the server provided (eg: if it's http(s) prefixed, using SSE, otherwise use stdio).

Hey @aaronpowell. This seems reasonable. Would you like to add a PR?

[aaronpowell]

I think there would be a level of intersection with #258 - maybe when the config endpoint is called it does some processing of the argument to send back that will determine the transport type, rather than having to add another arg to the CLI

[cliffhall]

Could we not rectify the situation in the client app, so that if you have supplied an http(s) url it switches the type to SSE?

[aaronpowell]

Since the client app gets its info on what to put in the transport drop down + input fields by calling the /config endpoint on the server, it'd make sense for the server (proxy) to provide that initial info, and then you can change it as desired.

Like I suggested, expanding on the solution in #258