Shopify Store + Lovable Storefront Conflict

Background:
I started building my store on Shopify
Connected it to Lovable and decided to build my storefront there instead
Stopped editing the Shopify storefront
Published my Lovable site → this also published the original Shopify storefront
The problem: Now I have two storefronts live:
Shopify: zgrk7c-68.myshopify.com
Lovable: northpole-lights-build.lovable.app
I want customers to only use my Lovable storefront. But if I password-protect the Shopify store, it breaks checkout since the Storefront API redirects there.
Question: How do I disable/hide my Shopify storefront while keeping checkout functional for my Lovable site? (edited)

in the lovable YT video it shows that the home page should look like this but in my shopify homepage it shows my old edit instead