Allow project selection from Cmd+K in existing discussions

Hey @Arbeitnehmer! This makes a lot of sense. Being able to use Cmd+K to select or switch project context from inside an existing discussion would make the workflow feel a lot more consistent, and it’d cut down on the friction of having to start a new thread just to change projects. Appreciate you taking the time to spell it out so clearly. I don’t have a timeline to share, but this is really helpful context on what would make things smoother, and I’ll pass it along internally. - Sunny