feat: add cron job for allowance and implement cron lock

src/allowance/services/allowances.service.ts

@@ -89,6 +89,13 @@ export class AllowancesService {
     return allowance;
   }
 
+  async findAllowancesChunks(chunkSize: number) {
+    this.logger.log(`Finding allowances chunks`);
+    const allowances = await this.allowancesRepository.findAllowancesChunks(chunkSize);
+    this.logger.log(`Returning allowances chunks`);
+    return allowances;
+  }
+
   private async prepareAllowanceDocuments(allowance: Allowance[]) {
     this.logger.log(`Preparing document for allowances`);
     await Promise.all(