PACK_FACTURARE: use PTVA from COMENZI_ELEMENTE (NVL2) in adauga_articol_factura instead of fetching PROC_TVAV from price list, fixing NULL SUMA for discount lines with multiple TVA rates (11%, 21%). sync.py: broaden direct SKU enrichment to all unmapped SKUs regardless of mapping_status, fixing stale status edge cases. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>