feat(web) back-end routing

frontend/src/app/print.service.ts

@@ -1,13 +1,14 @@
 import { Injectable, inject } from '@angular/core';
 import { HttpClient } from '@angular/common/http';
 import { Observable } from 'rxjs';
+import { environment } from '../environments/environment';
 
 @Injectable({
   providedIn: 'root'
 })
 export class PrintService {
   private http = inject(HttpClient);
-  private apiUrl = 'http://127.0.0.1:8000'; // Should be in environment
+  private apiUrl = environment.apiUrl;
 
   calculateQuote(file: File, params?: any): Observable<any> {
     const formData = new FormData();