fixed default values

src/lookups/fanavaran-last-car-policy.spec.ts

@@ -1,5 +1,6 @@
 import {
   collectPartyVinCandidates,
+  fanavaranIdOrConfigDefault,
   filterPoliciesByLine,
   insuranceLineLabel,
   parseLastCarPolicyInput,
@@ -172,6 +173,12 @@ describe("fanavaran last car policy", () => {
     });
   });
 
+  it("uses tenant config default when the API id is missing", () => {
+    expect(fanavaranIdOrConfigDefault(15, 8)).toBe(15);
+    expect(fanavaranIdOrConfigDefault(null, 8)).toBe(8);
+    expect(fanavaranIdOrConfigDefault(0, 10)).toBe(10);
+  });
+
   it("matches VIN against ChassisNo when VIN is empty", () => {
     expect(
       vehicleMatchesCar(

src/lookups/fanavaran-last-car-policy.ts

@@ -162,6 +162,14 @@ export function parseFanavaranId(value: unknown): number | null {
   return Number.isFinite(id) && id > 0 ? id : null;
 }
 
+/** Live Fanavaran / cache id wins; tenant `fanavaranClientConfigs.defaults` if the API returned nothing. */
+export function fanavaranIdOrConfigDefault(
+  resolved: unknown,
+  configDefault: number,
+): number {
+  return parseFanavaranId(resolved) ?? configDefault;
+}
+
 export function asObjectRecord(value: unknown): Record<string, unknown> | null {
   if (!value || typeof value !== "object") {
     return null;