HUB: POST /api/reception/contribute with kind idea, issue or learning - described as the DURABLE, reviewable channel, distinct from an alert stream that is easy to miss. It lands in an idea-box buffer at status captured, and a human later promotes it to the vault. SHAREPOINT: a Discussion Board with content approval switched on. Captured versus promoted is Pending versus Approved, and it is a LIST SETTING - EnableModeration - not a workflow, not a service. STATUS: the Discussion Board shipped 2026-09-22; approval is SPF.21. Kind maps to a Choice column with exactly those three values, because a vocabulary the hub already uses is one neither side has to translate.