Salon booking app close to done, can someone sanity-check my RLS before real customers touch it

This is the same app I asked about earlier this week, RLS is in now on every table. Before I invite my partner's actual clients I'd like someone to try to break it, not just tell me it looks fine.

I'll have a go tonight. Can I create two customer accounts myself or is signup invite-only? jb_supa yesterday

Signup is open, use any email. sam_builds yesterday