* Fix - Prevent UPS rates from disappearing at classic checkout when address validation suggests a correction, avoiding unintended fallback to Local Pickup.
* Fix - Keep UPS address validation notices in sync with the current address on block checkout page load and rate changes (previously only updated on address change).
* Fix - Suppress UPS address validation notices on both classic and block checkout when a non-UPS shipping method (e.g. Local Pickup) is selected.
* Fix - Block checkout submission (classic and block) when address validation is strict or hard-invalid (PO Box / no suggestion) and a UPS rate is selected.
* Tweak - Align address validation notice wording, severity, and button styling with WooCommerce Shipping for a consistent checkout experience when both extensions are active.
* Tweak - Move UPS address validation notice on block checkout above the shipping address field for better visual proximity to the source of the issue.
