feat: add unit and integration tests for rental management domain

- Introduced RentPaymentCorrectionTest and RentPaymentTest to validate payment and refund logic.
- Added PhoneNumberTest to ensure proper normalization of phone numbers.
- Created TenantTest to verify attachment management and tenant referencing.
- Implemented ReplacementRentalApiJourneyIT for end-to-end testing of rental and payment workflows.
- Documented architectural decisions in ADR-0014, emphasizing strict DDD boundaries and transaction management.

frontend/src/app/services/session.service.ts

@@ -7,7 +7,7 @@ interface UserResponse {
   email?: string;
 }
 
-export type SessionStatus = 'checking' | 'authenticated' | 'anonymous' | 'error';
+export type SessionStatus = 'checking' | 'authenticated' | 'anonymous' | 'signing-out' | 'error';
 
 @Injectable({ providedIn: 'root' })
 export class SessionService {
@@ -32,4 +32,18 @@ export class SessionService {
       },
     });
   }
+
+  logout(): void {
+    if (this.status() === 'signing-out') return;
+    this.status.set('signing-out');
+    this.http.post('/logout', null, { responseType: 'text' }).subscribe({
+      next: () => {
+        window.location.href = '/';
+      },
+      error: () => {
+        this.status.set('authenticated');
+        window.alert('Impossible de vous déconnecter. Réessayez.');
+      },
+    });
+  }
 }