Update a partner invite.

Declaring reimbursement coverage of specific RFIDs and vehicles (allow) also assigns them to the invited user: listed RFIDs with no owner get that user as their owner, and that user is added to the users of listed vehicles they are not yet a user of. When the invite is still pending this happens once it is accepted; when the invite is already accepted it happens as part of this request. Listed RFIDs must belong to the invite's partner and must either belong to the invited user or have no owner, and listed vehicles must belong to the invite's partner.

Experimental endpoint — not yet a stable contract. partner-invites/v2.0 ships as experimental / beta. While experimental, its schema and behaviour may change without a version bump — including breaking changes within v2.0 itself. Anyone consuming it does so for evaluation only, or by coordinating adoption with their account manager so changes can be sequenced with them. It graduates to a stable, version-locked contract (where the normal breaking-change rules apply) only when this experimental notice is removed.