Define OpeningRight domain model

[mastertape]

Define a first-class OpeningRight model for delivery, pickup, return, maintenance and reservation rights.

Acceptance criteria:

• Delivery and pickup are separate actions.
• Expiry, revocation and limited-use semantics are represented.
• The model can be rendered as PIN, QR, signed token or API grant.
• Offline and online validation paths are described.
• Raw access secrets are not required in audit logs.

Source: reviewed carrier dynamic access code research in private research inbox.