Checkout signs you in first, and your first prompt is never lost
Picking a plan on the pricing page while signed out now opens a one-click sign-in right there - your chosen plan is saved server-side and checkout continues automatically the moment you're in. No more dead ends for visitors who weren't signed in, and subscriptions always land on your own account.
We also fixed a frustrating loss: if you typed a prompt and signed up mid-send, some paths could drop it. The prompt now survives sign-in everywhere - including sign-ins that reload the page - and lands back in your composer or sends as intended.
Payment flows no longer show the signup survey; it can wait until after you're building.