Creates a Stripe Product + Price for every active row in your pricing table, then saves the Stripe IDs back so checkout knows what to bill. Safe to re-run — rows that already have a stripe_price_id are skipped.
Run this once after first deployment, then again whenever you add a new pricing row. Takes ~10 seconds.
For each row in pricing where active = true and the price isn't $0:
stripe_product_id and stripe_price_id back to Supabase