TODO: Implement mint quote payment for cross-mint transfers

[shroominic]

TODO Location

sixty_nuts/wallet.py:1647

Priority

🔴 High Priority - Essential for cross-mint functionality

Current Code

# TODO: Implement mint quote payment
# Attempt to mint using the quote
# Note: This will fail unless the invoice is actually paid
raise WalletError(
    f"Cross-mint transfers require Lightning payment infrastructure. "
    f"Please pay invoice: {quote_resp.get('request', 'No invoice available')} "
)

What needs to be done

• Implement Lightning invoice payment functionality for cross-mint transfers
• Integrate with Lightning node or payment service
• Handle payment confirmation and proof minting
• Support both automated and manual payment flows

Requirements

• Lightning integration (LND, CLN, or payment service API)
• Payment status polling
• Error handling for failed payments
• Timeout management