Attention items are stored and written at source
Context
Home must show stored attention without asking every application to recompute business conditions.
Decision
Applications publish and resolve attention through restricted database functions within their business transactions, and repair their conditions through provider sweeps.
Alternatives Considered
Union live application views when Home opens: Home would depend on the latency and availability of every provider.
Make Platform interpret all application conditions: Platform would accumulate business logic owned by other areas.
Consequences
A rejected attention write can roll back the provider’s business transaction. A companion key row enforces one open occurrence. The last sweep stamp helps expose stale provider maintenance.