Manage payment sessions from payment collection

Editor assessment

The header is serviceable: feat(medusa) scopes correctly, the subject is lowercase and imperative-ish ('manage payment sessions from payment collection'), and reasonably specific about the new capability. However, the body adds nothing — it repeats the exact same sentence as a stray squash bullet, so a reader learns nothing about the API surface, affected endpoints, or the payment-collection lifecycle being supported. Given this introduces a new interaction model for payment sessions, a real body was warranted: what operations are exposed, whether admin or storefront, and any feature flagging. No breaking-change markers appear; if existing payment-session flows changed shape, that should have been called out with '!' or a 'BREAKING CHANGE:' footer. Structurally valid but content-thin for a feature of this apparent size.