Create metadata property option

Object types that support CRUD, query, list, and per-type property metadata. GET /v2/prism/{teamId}/properties (list-all) also returns definitions for pipeline-owned types that are not in this set — including message, thread, and linkedin_thread. Those types are not queryable. Contacts expose last_email as a ref_message; you cannot query message to follow it.

Property definition uuid, or the reserved alias app_stage for the list pipeline stage definition (requires list_id). The alias exists because a superseded native status definition can coexist with the pipeline one and the two are indistinguishable in a metadata read; the definition carrying alias: app_stage is the pipeline one.

A unique key (UUID or any opaque string up to 255 chars) for an authenticated POST, PUT, or PATCH request. The server retains the initial claim for 24 hours and replays a completed non-5xx response only when the method, path, and request body all match. Reusing a non-expired key with a different method, path, or body returns 409 idempotency_key_mismatch; reusing it after expiry returns 409 idempotency_key_stale, so use a new key. Replays include the idempotent-replay: true response header.