Blind non-golden catalog case
A separate release case was processed after the engine was already built. The handoff preserved source rows, did not invent unsupported values and produced the same deterministic file structure on replay.
01_SHOPIFY_IMPORT_READY.csv 02_SOURCE_TO_TARGET_MAPPING.xlsx 03_EXCEPTIONS_AND_QUESTIONS.xlsx 04_SKU_AND_VARIANT_VALIDATION.html 05_FIELD_PROVENANCE_REPORT.html 06_IMPORT_COMPATIBILITY_REPORT.html 07_CORRECTION_LOG.html SHA256SUMS.txt
Boundary: static Shopify-format preparation and QA. No claim of guaranteed live Shopify import.