Pipeline contract enforcement for ZINC-Fusion-V15 soybean oil forecasting system. Use when working on any ZINC-Fusion-V15 task involving schema definitions, training pipelines, L0 specialists, data ingestion, MLflow/Dagster configuration, or debugging contract drift. Triggers on mentions of fusion.db, specialist models, horizon encoding, quantile outputs, OOF predictions, or any ZINC-Fusion development work.