feat: récupération sommaire des groupes de tâches

src/services/base.service.ts

@@ -0,0 +1,11 @@
+import { HttpClient } from '@angular/common/http';
+import { inject, Service } from '@angular/core';
+import { Observable } from 'rxjs';
+
+@Service()
+export class BaseService {
+  private readonly http: HttpClient = inject(HttpClient);
+  protected get<T>(url: string):Observable<T> {
+    return this.http.get<T>(url);
+  }
+}