[Feature Request] Allow the Server/Proxy to communicate which World a Player is on

[HB-Stratos]

Hi there!

I run a minecraft server network consisting of a creative prototyping world and a survival server.
These are two different fabric backends proxied together with velocity proxy. However, both servers share the same seed, so it is likely that bobby would mistakenly merge them together with the current implementation for proxies.
The only real way to solve this is to introduce a server side component to the mod. It could either take advantage of already existing solutions for minimap mods (https://github.com/turikhay/MapModCompanion) or introduce it's own server side component. Of these I feel the former would be the easier implementation.

I would also humbly request that if this change is implemented, it be backported to 1.20.1 as I am unfortunately stuck there due to many mods not being up to date.

Thank you for reading and at least giving this idea a thought!