Sort a feature list into must, should and not now using 15 explicit rules on each feature's tags (core_job, revenue, compliance, trust_safety, onboarding, measurement, retention, integration, automation, admin, growth, analytics, customization, platform, scale, delight), whether it could be done by hand at first, and how many buyers asked for it. Dependencies of a must become must. Should-haves fill the build window by value per effort point in dependency order. Returns each feature with its tier, the rule and the reason, effort totals against capacity, and when the must-haves do not fit, the specific cuts that would make them fit. Rejects duplicate ids, unknown dependencies and cycles with the chain named.