fix(exareme2): Fix pearson next call missing property

api/src/engine/connectors/exareme/handlers/algorithms/pearson.handler.ts

@@ -97,7 +97,7 @@ export default class PearsonHandler extends BaseHandler {
     );
   }
 
-  handle(exp: Experiment, data: any, domain?: Domain): void {
+  handle(exp: Experiment, data: any, domain: Domain): void {
     if (!this.canHandle(exp.algorithm.name, data))
       return super.handle(exp, data, domain);
 
@@ -126,6 +126,6 @@ export default class PearsonHandler extends BaseHandler {
       .filter((heatMap) => heatMap.matrix.length > 0 && heatMap.name)
       .forEach((heatMap) => exp.results.push(heatMap));
 
-    this.next?.handle(exp, data);
+    this.next?.handle(exp, data, domain);
   }
 }

api/src/engine/connectors/exareme/handlers/result-handler.interface.ts

-import { Domain } from 'src/engine/models/domain.model';
+import { Domain } from '../../../models/domain.model';
 import { Experiment } from '../../../models/experiment/experiment.model';
 
 // produce algo handler
 export default interface ResultHandler {
   setNext(h: ResultHandler): ResultHandler;
-  handle(partialExperiment: Experiment, data: unknown, domain?: Domain): void;
+  handle(partialExperiment: Experiment, data: unknown, domain: Domain): void;
 }