Race condition when user joins the room before tracks are replaced.

If user joins the room before the below operation is complete, existing peers in the room will get "Error: Missing Track Info". I am not sure how to delay the user or to signal to the room to try and reacquire the tracks.

https://github.com/cloudflare/orange/blob/49cb2ccba6e76b4b1015de9546d3eb46779a7885/app/utils/rxjs/RxjsPeer.client.ts#L344

Start in app/utils/rxjs/RxjsPeer.client.ts around line 344, where the issue links to the track-replacement flow. Reproduce a user joining while that operation is still running and trace how existing peers receive track information. Done means the race no longer produces "Error: Missing Track Info" for peers already in the room.

Written by the indexing model from the issue text.