* Fix - Liftgate special services are now only added to Freight (FDXF) rate requests, preventing SERVICE.PACKAGECOMBINATION.INVALID errors on non-Freight (Express, Ground, and SmartPost) requests.
* Fix - Retry transient transport failures (cURL timeouts, connection resets) in the FedEx REST API client before returning an empty rate list.
* Fix - Respect admin-defined service order when rates are returned from multiple request buckets (e.g. Ground + Express for FEDEX_PAK shipments).
* Fix - FedEx rates now appear on Blocks-based checkout pages that are not set as the default WooCommerce checkout page.
* Tweak - Suppress shipping method notices outside AJAX requests.
* Fix - Replace per-request static memo with database-backed transients to prevent OAuth token failures persisting across PHP-FPM requests.
* Fix - REST API credentials randomly disconnecting and requiring frequent re-authentication, with automatic validation and enhanced error handling.