Continue guest exports after signup

When you create a carousel as a guest and choose Export, SlideDrift now carries that exact export task through signup or sign-in. After the guest carousel is attached to your account, you return to the same editor with Export reopened instead of having to find the carousel and start again.

The same return path works when you choose a paid plan from the guest export prompt and complete Stripe checkout. Cancelling checkout keeps the carousel available so you can return and continue later.