feat: Re-compute the given items cost job.

feat: Optimize the architecture.

server/src/loaders/agenda.ts

@@ -0,0 +1,11 @@
+import Agenda from 'agenda';
+import config from '@/../config/config';
+
+export default ({ mongoConnection }) => {
+  return new Agenda({
+    mongo: mongoConnection,
+    db: { collection: config.agenda.dbCollection },
+    processEvery: config.agenda.pooltime,
+    maxConcurrency: config.agenda.concurrency,
+  });
+};