fix: refresh vehicle asset statistics every 5 seconds

src/server/routes/vehicles/repository.test.ts

@@ -49,7 +49,7 @@ test('keeps all vehicle GET endpoints in their established order', () => {
   assert.doesNotMatch(source, /\bSELECT\b|pool\.query|MAIN_SQL/);
 });
 
-test('keeps the non-empty vehicle cache for less than 60 seconds', async () => {
+test('keeps the non-empty vehicle cache for less than 5 seconds', async () => {
   let now = 100_000;
   const db = new FakeDatabase([[{ id: 'first' }], [{ id: 'second' }]]);
   const repository = new VehicleRepository(
@@ -59,7 +59,7 @@ test('keeps the non-empty vehicle cache for less than 60 seconds', async () => {
   );
 
   assert.deepEqual(await repository.getVehicles(), [vehicle('first')]);
-  now += 59_999;
+  now += 4_999;
   assert.deepEqual(await repository.getVehicles(), [vehicle('first')]);
   now += 1;
   assert.deepEqual(await repository.getVehicles(), [vehicle('second')]);

src/server/routes/vehicles/repository.ts

@@ -278,7 +278,7 @@ export const FLOW_STATS_SQL = `
     ORDER BY flow.event_time DESC, flow.id DESC
   `;
 
-const CACHE_TTL = 60 * 1000;
+const CACHE_TTL = 5 * 1000;
 
 export class VehicleRepository {
   private cachedVehicles: Vehicle[] = [];