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Merge feature/discount-codes into main resolving the pricing.py conflict so both rounding and discount codes…

Merge feature/discount-codes into main resolving the pricing.py conflict so both rounding and discount codes…: a task in agent-harbor-tasks (Harbor dataset). Merge feature/discount-codes into main. There'll be a conflict in pricing.py: main added rounding to cents and the branch added discount…

The task

Merge `feature/discount-codes` into main. There'll be a conflict in pricing.py: main added rounding to cents and the branch added discount codes — I want both. Make sure all the tests pass afterwards.

Part of efederici/agent-harbor-tasks.