Cryptocurrency Payment Interface Development

User Roles and Access Control
Merchants
* Registration and Login:
* Email/password sign-up or Google/Apple SSO.
* Optional KYC verification.
* Merchant Dashboard:
* View total revenue (crypto and fiat equivalent).
* Track completed and pending transactions.
* Access reports and invoices.
* Invoice Creation:
* Create and share invoices with customers (via QR code, link, or email).
* Customize invoice details (amount, currency, due date).
* Conversion Settings:
* Select auto-conversion to fiat or hold in crypto.
* Configure supported cryptocurrencies for payments.
Customers (End Users)
* Payment Interface:
* Scan QR code or click a link to pay.
* Choose cryptocurrency for payment.
* View transaction status and confirmation.
* Anonymity:
* No need for account creation to make payments.
* Optional receipt sent to email.
Admin
* Admin Panel:
* Approve/reject merchant registrations.
* Monitor transactions (filter by date, merchant, or amount).
* Flag suspicious activity for review.
* Manage supported cryptocurrencies and conversion rates.