improve base 44 sign in/sign up

I’m concerned the current base44 sign-in screen may cause new user drop-off. It reads as an existing-user flow (“Sign in to continue”), with email sign-up hidden behind a small link. It’s also unclear that Google auth works for both sign-in and sign-up. Suggest changing header to “Sign in or create an account,” clarify that Google auth/others auth work for sign in and sign up, and place email sign-up on the same page (rather than via a small link) to reduce new user friction.