Tune the visibility-first metering dials consumed by SwarmScheduler + TenantCapacityEnvelope. The default policy meters past-budget spend and surfaces it here — it does not deterministically block.
Applied to every tenant that does not have a per-tenant override.
Overrides win over the global defaults for the specified tenant only.
Resolve what a tenant actually sees right now after the
per-tenant → global → constants fall-back chain.