Release 5.1.0

Added

• New GET /V1/klaviyo/reclaim/plugin-settings endpoint that returns the
  extension's configured plugin settings for a given store (passed as store_id),
  to speed up support troubleshooting. Sensitive values (Private Klaviyo API Key,
  Webhook Secret) are reported as PRESENT/NULL rather than exposed.

Fixed

• Resolved warnings for PHP 8.5
• Fixed a PHP 8.5 deprecation (array_key_exists() called with a null key) in
  ScopeSetting::getStoreIdKlaviyoAccountSetMap() for stores with no Klaviyo
  Public API Key configured