support relinking to renamed project on share

[aryairani]

Is your feature request related to a problem? Please describe. When a project is renamed on share, new branches created in ucm don't push correctly. See https://unisoncomputing.slack.com/archives/C03HW54CYP4/p1742990218671439

Describe the solution you'd like Maybe if ucm detects an expected project name doesn't exist on share, it can ask share for a name from UUID and update itself with a warning? (security implications of this? seems okay as long as we trust share's identity)

Describe alternatives you've considered A ucm command to change the remote name of the project, if this is the right fix

Additional context It's not currently possible to rename projects on Share, so this isn't an issue -- except when it is!