The updateWorkspace mutation's onSuccess handler only invalidated the
project query but didn't reset the form state (close the edit mode,
clear inputs). This made it look like Save did nothing when editing an
existing workspace. Now matches createWorkspace's onSuccess behavior.
Also added updateWorkspace.isPending to the Save button disabled state
for both local folder and repo inputs.
Co-Authored-By: Paperclip <noreply@paperclip.ing>
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>