Нормализовать НДС follow-up за месяц в налоговый квартал

llm_normalizer/backend/tests/addressQueryRuntimeM23.test.ts

@@ -4102,6 +4102,33 @@ describe("address query limited taxonomy and stage diagnostics", { timeout: 9000
     expect(result?.debug.route_expectation_status).toBe("matched");
   });
 
+  it("normalizes carried monthly debt period into VAT tax quarter for same-period follow-up", async () => {
+    const service = new AddressQueryService();
+    const result = await service.tryHandle("а какой ндс мы должны примерно заплатить за этот период?", {
+      followupContext: {
+        previous_intent: "receivables_confirmed_as_of_date",
+        previous_filters: {
+          organization: 'ООО "Альтернатива Плюс"',
+          period_from: "2017-05-01",
+          period_to: "2017-05-31",
+          as_of_date: "2017-05-31"
+        },
+        previous_anchor_type: "organization",
+        previous_anchor_value: 'ООО "Альтернатива Плюс"',
+        target_intent: "vat_liability_confirmed_for_tax_period"
+      }
+    });
+
+    expect(result?.handled).toBe(true);
+    expect(result?.debug.detected_intent).toBe("vat_liability_confirmed_for_tax_period");
+    expect(result?.debug.selected_recipe).toBe("address_vat_liability_confirmed_tax_period_v1");
+    expect(result?.debug.extracted_filters.period_from).toBe("2017-04-01");
+    expect(result?.debug.extracted_filters.period_to).toBe("2017-06-30");
+    expect(result?.debug.reasons).toContain("period_from_from_followup_context");
+    expect(result?.debug.reasons).toContain("period_derived_from_tax_quarter_for_confirmed_vat_liability");
+    expect(String(result?.reply_text ?? "")).toContain("01.04.2017..30.06.2017");
+  }, 35000);
+
   it("routes customer lifecycle question into dedicated aggregate recipe", async () => {
     const service = new AddressQueryService();
     const result = await service.tryHandle("Какие заказчики работали с нами в 2020 году?");