fix: fix login/register

frontend/src/app/service/auth.service.ts

@@ -1,6 +1,6 @@
 import { Injectable } from '@angular/core';
 import { HttpClient } from '@angular/common/http';
-import { BehaviorSubject, Observable, tap } from 'rxjs';
+import { BehaviorSubject, catchError, EMPTY, Observable, tap } from 'rxjs';
 import { Router } from '@angular/router';
 import { LoginRequest } from '../model/auth/LoginRequest';
 import { RegisterRequest } from '../model/auth/RegisterRequest';
@@ -18,24 +18,23 @@ export class AuthService {
   private authUrl = `${environment.apiUrl}/auth`;
   private userUrl = `${environment.apiUrl}/users`;
 
-  private currentUserSubject: BehaviorSubject<User | null>;
+  userSubject: BehaviorSubject<User | null>;
   public currentUser: Observable<User | null>;
 
   constructor(
     private http: HttpClient,
     private router: Router
   ) {
-    this.currentUserSubject = new BehaviorSubject<User | null>(this.getUserFromStorage());
-    this.currentUser = this.currentUserSubject.asObservable();
+    this.userSubject = new BehaviorSubject<User | null>(this.getUserFromStorage());
+    this.currentUser = this.userSubject.asObservable().pipe(catchError(() => EMPTY));
 
-    // Check if token exists and load user data
     if (this.getToken()) {
       this.loadCurrentUser();
     }
   }
 
   public get currentUserValue(): User | null {
-    return this.currentUserSubject.value;
+    return this.userSubject.value;
   }
 
   login(loginRequest: LoginRequest): Observable<AuthResponse> {
@@ -54,7 +53,7 @@ export class AuthService {
   logout(): void {
     localStorage.removeItem(TOKEN_KEY);
     localStorage.removeItem(USER_KEY);
-    this.currentUserSubject.next(null);
+    this.userSubject.next(null);
     this.router.navigate(['/']);
   }
 
@@ -83,7 +82,7 @@ export class AuthService {
 
   private setUser(user: User): void {
     localStorage.setItem(USER_KEY, JSON.stringify(user));
-    this.currentUserSubject.next(user);
+    this.userSubject.next(user);
   }
 
   private getUserFromStorage(): User | null {