Minor modifications made to the billing service handlers to improve data interpretation and error processing. The 'getLineItemTypeById' function now uses 'item.variant' for more accurate line item type identification. Unnecessary 'Crypto' object instantiation has been removed in 'createHmac', while improved formatting applied to the error logging within the billing webhook.
A new module has been added to create HMACs, primarily used in the billing service for data verification. Keystatic CMS usage has been conditioned to Node.js runtime only, and a fallback to the mock CMS client has been implemented for Edge Runtime. Mailer services now accommodate environment-specific providers.