Архитектура: централизовать root-frame-aware carryover filters в continuity policy и transition glue

llm_normalizer/backend/src/services/assistantTransitionPolicy.ts

@@ -4,6 +4,7 @@ import {
   readAddressDebugFilters,
   readAddressDebugItem,
   readAddressDebugTemporalScope,
+  resolveAddressDebugCarryoverFilters,
   resolveAddressDebugAnchorContext,
   resolveAssistantOrganizationAuthority
 } from "./assistantContinuityPolicy";
@@ -773,9 +774,7 @@ export function createAssistantTransitionPolicy(deps) {
       : null;
     let resolvedCounterpartyFromDisplay = false;
     let displayedEntityTargetIntent = null;
-    const previousFiltersRaw = previousAddressDebug.extracted_filters;
-    let previousFilters =
-      previousFiltersRaw && typeof previousFiltersRaw === "object" ? { ...previousFiltersRaw } : {};
+    let previousFilters = resolveAddressDebugCarryoverFilters(previousAddressDebug, deps.toNonEmptyString);
     const shouldBackfillHistoricalPartyAnchors =
       sourceIntentHint === "list_contracts_by_counterparty" ||
       sourceIntentHint === "list_documents_by_counterparty" ||