Advance standalone admission, finite artillery and native validation

docs/architecture.md

@@ -64,3 +64,9 @@ The native end-data connection ID list is retained only as a framework adapter.
 `ERR_ObjectiveText` supplies hints and native task descriptions from the same mission state. Radio identification can update local guidance within the search phase, and extraction instructions use the configured replicated radius. `ERR_ObjectiveDetails` subscribes open successor task details directly to native display-data changes; it removes that subscription on task switch and widget detach. Detach also removes native global task-event callbacks, and pending overflow work is cancelled before assignee labels are deleted. Other task types retain their native behavior. See [objective widget lifecycle](objective-widget-lifecycle.md).
 
 Optional ground transport belongs to the existing site definition/service and its rollback path. It has bounded parking checks, actual native fuel and compartments, and no replacement/refill loop. See [ground transport](ground-transport.md).
+
+## Standalone admission and finite mortar orders
+
+`ERR_LocalAdmission` supplies a round-local roster key only for the sole genuine local controller in native `RplMode.None`. It is selected through normal audited spawn admission, pinned to that controller/context and closed on invalidation. It is not an account identity and never replaces native identity handling in Listen, Dedicated or Client modes. [Design and evidence](local-singleplayer-admission.md).
+
+HQ owns each finite mortar battery, its readiness, delivered order and exact shell transactions. Initial expansion and inventory callbacks must resolve to the actual original crew and 27 distinct HE shells. Resupply moves one exact existing shell; acceptance alone is not readiness. Re-aim validation recomputes native ballistics against the immutable original command while retaining the original report's expiry. The per-battery report ledger prevents a cancelled/completed radio observation from becoming another order; only newly delivered observations can authorize new attempts. [Operations](finite-mortar-operations.md), [aim renewal](mortar-aim-renewal.md), [report deduplication](mortar-report-deduplication.md).