Document-to-Warehouse Pipeline

Orchestration skill that assembles the OUTPUT of single-document extractors into validated, warehouse-ready tabular datasets. It does not re-extract individual documents; it sits above the extractors and turns their per-document fact tables into multi-document datasets with declared extraction schemas, data-quality and validation rules, standardized provenance columns, warehouse table naming, and a deck-readiness gate. Triggers on 'build the warehouse dataset', 'assemble these extractions', 'validate the data room for the model/deck', or when several extracted documents must become one queryable table. Failing rows are surfaced for review, never silently dropped. Output i…