Use the authorized Project TestBucks folder to answer these business questions: Which discount combinations threaten margin? Which refund policy applies to existing orders? Which checkout failure should block release, and why? Find relevant code, specifications, product decisions, and financial assumptions. Cite the source and version for each answer. Separate documented facts, calculations, inferences, and missing decisions. Do not invent absent policies or treat a draft as approved. Explain what additional evidence would change your recommendation.