TODO: Check denomination optimization in _swap_proof_denominations

[shroominic]

TODO Location

sixty_nuts/wallet.py:1120

Priority

🟢 Low Priority - Optimization

Current Code

# TODO: Implement this
# check if proofs are already in target denominations
# return proofs if they are

What needs to be done

• Add optimization to skip swap if proofs already have target denominations
• Compare current denominations with target before swapping
• Save unnecessary mint API calls