094248b75d
- Marketplace writes hp_vendor / hp_commission_rate / hp_commission_fee (no underscore); the _hp_* keys never existed, so no commission was recorded - Compute subtotal, vendor payout and commission the way Marketplace::get_order_profit() does, honouring hp_vendor_include_taxes - Store the vendor's user ID, the product's parent listing, and the platform commission percentage (Marketplace stores the vendor share, e.g. 0.9) Verify: phpunit-integration --filter WCOrdersInterceptorTest (4 tests); WC unit 10 OK, integration 22 OK PR: PR-012