feat(service): Unterstützung von Query-Parametern im HistoryService hinzugefügt

- Methode `getHistory` hinzugefügt, um das Abrufen von History-Daten mit optionalen Query-Parametern wie `envelopeId`, `referenceType`, `userReference`, `withSender` und `withReceiver` zu ermöglichen.
- Methode `getHistoryAsync` implementiert, um History-Daten mit async/await abzurufen.
- `Options`-Interface eingeführt, um optionale Query-Parameter für History-Anfragen zu definieren.

EnvelopeGenerator.GeneratorAPI/ClientApp/envelope-generator-ui/src/app/services/history.service.ts

@@ -1,5 +1,5 @@
 import { Injectable, inject } from '@angular/core';
-import { HttpClient } from '@angular/common/http';
+import { HttpClient, HttpParams } from '@angular/common/http';
 import { Observable, firstValueFrom } from 'rxjs';
 import { API_URL } from '../tokens/index';
 
@@ -14,4 +14,33 @@ export class HistoryService {
     const api_url = inject(API_URL);
     this.url = `${api_url}/history`;
   }
+
+  public getHistory(options?: Options): Observable<any> {
+    let params = new HttpParams();
+    if (options) {
+      if (options.envelopeId)
+        params = params.set('envelopeId', options.envelopeId.toString());
+      if (options.referenceType)
+        params = params.set('referenceType', options.referenceType.toString());
+      if (options.userReference)
+        params = params.set('userReference', options.userReference.toString());
+      if (options.withReceiver)
+        params = params.set('withReceiver', options.withReceiver.toString());
+      if (options.withSender)
+        params = params.set('withSender', options.withSender.toString());
+    }
+    return this.http.get(this.url, { params });
+  }
+
+  public async getHistoryAsync(options?: Options): Promise<any> {
+    return firstValueFrom(this.getHistory(options));
+  }
+}
+
+interface Options {
+  envelopeId?: number;
+  userReference?: string;
+  referenceType?: number;
+  withSender?: boolean;
+  withReceiver?: boolean;
 }