adding api unit tests (#108)

* adding api unit tests

* adding not signed in alerts to flights and logs

api/src/health/health.module.ts

@@ -1,11 +1,7 @@
 import { Module } from '@nestjs/common';
 import { HealthController } from './health.controller';
-import { HealthService } from './health.service';
 
 @Module({
   controllers: [HealthController],
-  providers: [
-    HealthService
-  ]
 })
 export class HealthModule {}