Архитектура: централизовать selected-item carryover в continuity policy и transition glue

llm_normalizer/backend/tests/assistantContinuityPolicy.test.ts

@@ -3,6 +3,7 @@ import {
   applyHistoricalPartyCarryoverFilters,
   applyOrganizationCarryoverFilters,
   applyReferencedEntityCarryover,
+  applySelectedItemCarryover,
   applyTemporalCarryoverFilters,
   buildRootScopedCarryoverFilters,
   hydrateInventoryRootFrameState,
@@ -324,4 +325,29 @@ describe("assistantContinuityPolicy organization authority", () => {
       resolvedCounterpartyFromDisplay: true
     });
   });
+
+  it("applies selected-item carryover from navigation focus before continuity and explicit labels", () => {
+    const carryover = applySelectedItemCarryover(
+      {
+        organization: "Org Alt"
+      },
+      null,
+      null,
+      false,
+      true,
+      "Workstation Navigation",
+      "Workstation Continuity",
+      "Workstation User",
+      "Workstation Alternate"
+    );
+
+    expect(carryover).toEqual({
+      previousFilters: {
+        organization: "Org Alt",
+        item: "Workstation Navigation"
+      },
+      previousAnchorType: "item",
+      previousAnchorValue: "Workstation Navigation"
+    });
+  });
 });

llm_normalizer/backend/tests/assistantTransitionPolicy.test.ts

@@ -297,6 +297,48 @@ describe("assistantTransitionPolicy", () => {
     expect(carryover?.followupContext?.root_context_only).toBeUndefined();
   });
 
+  it("hydrates selected-item carryover through shared continuity helper for short object follow-up", () => {
+    const policy = buildPolicy({
+      findLastAddressAssistantItem: () => ({
+        text: "Подтвержден складской срез по выбранной позиции.",
+        debug: {
+          detected_intent: "inventory_on_hand_as_of_date",
+          extracted_filters: {
+            organization: 'ООО "Альтернатива Плюс"',
+            as_of_date: "2020-03-31"
+          }
+        }
+      }),
+      hasAddressFollowupContextSignal: () => true,
+      hasShortInventoryObjectFollowupSignal: () => true,
+      findRecentInventoryRootFrame: () => null,
+      resolveAddressIntent: () => ({ intent: "unknown" })
+    });
+
+    const carryover = policy.resolveAddressFollowupCarryoverContext(
+      "по этой позиции покажи документы",
+      [],
+      null,
+      null,
+      {
+        session_context: {
+          active_focus_object: {
+            object_type: "item",
+            label: "Workstation Focus"
+          }
+        }
+      }
+    );
+
+    expect(carryover?.followupContext?.previous_filters).toMatchObject({
+      organization: 'ООО "Альтернатива Плюс"',
+      as_of_date: "2020-03-31",
+      item: "Workstation Focus"
+    });
+    expect(carryover?.followupContext?.previous_anchor_type).toBe("item");
+    expect(carryover?.followupContext?.previous_anchor_value).toBe("Workstation Focus");
+  });
+
   it("hydrates follow-up organization from shared assistant authority when local history filters are empty", () => {
     const policy = buildPolicy({
       findLastAddressAssistantItem: () => ({