Client portal with onboarding, payments and email

I replaced the contact form with a multi-step onboarding form that collects project details and lets prospects book a call. New leads get a welcome email, and I get a notification. In the client portal, clients can pay phase invoices by card through Stripe and receive invoice and payment confirmation emails. On the admin side I added a project wizard, a lead wizard that checks for duplicates, and a preview of every email, and I simplified billing to two invoices per project.