TODO: Implement rebalance_until_target() for multi-mint support

[shroominic]

TODO Location

sixty_nuts/wallet.py:1588

Priority

🔴 High Priority - Core functionality for multi-mint operations

Current Code

async def rebalance_until_target(self, target_mint: str, total_needed: int) -> None:
    """Rebalance until the target mint has at least the total needed."""
    raise NotImplementedError("Not implemented")  # TODO: Implement

What needs to be done

• Implement automatic rebalancing between mints to ensure a target mint has sufficient balance
• Transfer proofs from other mints to the target mint until it has at least total_needed amount
• Handle Lightning payment infrastructure requirements for cross-mint transfers
• Optimize transfers to minimize fees

Implementation approach

1. Check current balance at target mint
2. Calculate deficit amount
3. Select source mints with available balance
4. Use transfer_balance_to_mint() to move funds
5. Handle partial transfers if needed