Interactive inventory admin screen for importing Etsy Shop Manager listing CSV exports
into the custom pd_etsy_products table. Operators download active listings
from the Tonic Suite Music Etsy shop, upload the CSV here, and the script resets staging
flags, parses each row through a canonical column whitelist, upserts product data
idempotently, and enriches rows with OpenCart catalog price (OC_PRICE) and
calculated USPS shipping.
pd_etsy_products staging queue.