[Bug] Session creation fails with 400 when git remote named "origin" exists

Bug Description
session creation fails with 400: source: Extra inputs are not permitted when the repo has a remote named origin. Same-machine repro: with origin set, claude remote-control --spawn=session registers the environment (200) but session creation
▎ 400s and nothing appears on mobile. Renaming the remote away from origin (so git_repo_url=null) makes it work immediately. Reproduced on 2.1.170/2.1.173/2.1.174/2.1.177. Same as issue #46535. Cost significant debugging time. I should get my credits refund for debugging claude's issue.

Environment Info

• Platform: linux
• Terminal: vscode
• Version: 2.1.174
• Feedback ID: 334754dc-a7bb-419c-9c33-95f251b97e3a

Errors

[]