Availability is licence and readiness together, computed once and enforced by the dispatcher
Context
The console and request handler need compatible answers about application access.
Decision
Use the common commercial-and-operational rule for screen answers and the authorization query. Enforce the signed availability at dispatch when configured, and request cache refresh after changes.
Alternatives Considered
Per-service logic invites divergence. Gateway-only checks lack dispatcher enforcement. Synchronous invalidation would couple persistence to gateway availability.
Consequences
The design shares the rule but retains explicit cache and configuration boundaries.