post https://api.dev.orbit.do/v5/documents/links//actions
DocumentLink actions: 'create-link', 'delete-link', 'edit-link'. For 'create-link', provide documentId in the request body to create a new link for an existing document. For 'delete-link' and 'edit-link', the documentLinkId in the path identifies the link to modify. slotType values are lowercase (e.g., 'general', 'proof'); display uses Proper Case. Linking/unlinking may trigger OST chain propagation/unpropagation per business rules.
Access Rules:
- If no accessRules are provided when creating a link, all visibility fields default to 'visible' (shipperVisibility, operatorVisibility, carrierVisibility).