begin auth cookie

client/src/app/screens/screen-login/screen-login.ts

@@ -36,7 +36,7 @@ export class ScreenLogin {
 
     this.api.login(this.loginForm.value.username, this.loginForm.value.password).subscribe({
       next: () => {
-        //this.router.navigate(['']);
+        this.router.navigate(['']);
       },
       error: (err) => {
         this.error = err.error?.message || 'Login failed. Please try again.';

client/src/app/services/api.ts

@@ -1,6 +1,6 @@
 import { HttpClient } from '@angular/common/http';
 import { Injectable } from '@angular/core';
-import { Observable } from 'rxjs';
+import { BehaviorSubject, catchError, map, Observable, of, tap } from 'rxjs';
 import Transaction from '@model/transaction'
 
 @Injectable({
@@ -8,6 +8,8 @@ import Transaction from '@model/transaction'
 })
 export class APIService {
   private apiUrl = 'http://localhost:3000/api' 
+  private isAuthenticatedSubject = new BehaviorSubject<boolean>(false);
+  isAuthenticated$ = this.isAuthenticatedSubject.asObservable();
   
   constructor(private http: HttpClient){}
 
@@ -20,4 +22,14 @@ export class APIService {
   logout(): Observable<any>{
     return this.http.post(this.apiUrl + '/auth/logout', {});
   }
+  checkAuthStatus(): Observable<boolean> {
+    return this.http.get(`${this.apiUrl}/auth/status`, { withCredentials: true }).pipe(
+      map(() => true),
+      catchError(() => of(false)),
+      tap({
+        next: () => this.isAuthenticatedSubject.next(true),
+        error: () => this.isAuthenticatedSubject.next(false),
+      })
+    );
+  }
 }