Fixed scan runner in response

ref #67

src/models/responses/ResponseScan.ts

@@ -1,4 +1,4 @@
-import { IsBoolean, IsInt, IsPositive } from "class-validator";
+import { IsBoolean, IsInt, IsNotEmpty, IsPositive } from "class-validator";
 import { Scan } from '../entities/Scan';
 import { ResponseRunner } from './ResponseRunner';
 
@@ -16,8 +16,8 @@ export class ResponseScan {
      * The scan's associated runner.
      * This is important to link ran distances to runners.
      */
-    // @IsNotEmpty()
-    runner?: ResponseRunner;
+    @IsNotEmpty()
+    runner: ResponseRunner;
 
     /**
      * Is the scan valid (for fraud reasons).
@@ -39,7 +39,7 @@ export class ResponseScan {
      */
     public constructor(scan: Scan) {
         this.id = scan.id;
-        this.runner = null;
+        this.runner = scan.runner.toResponse();
         this.distance = scan.distance;
         this.valid = scan.valid;
     }