Refactor application structure to use WorkspaceService for state management

- Removed direct state management from components and centralized it in WorkspaceService.
- Updated ApartmentsPage, TenantsPage, LeasesPage, and DashboardPage to utilize WorkspaceService for data handling.
- Introduced SessionService to manage user session state and authentication.
- Simplified component templates to reflect new service-based architecture.
- Removed unused ConfigService and its tests.
- Added lease.html template for lease document generation.
- Created app.routes.spec.ts for route mapping tests.

frontend/src/app/components/workspace-navigation/workspace-navigation.html

@@ -9,9 +9,8 @@
       mat-button
       type="button"
       class="navigation-item"
-      [class.active]="activeTab() === 'dashboard'"
-      [attr.aria-current]="activeTab() === 'dashboard' ? 'page' : null"
-      (click)="tabSelected.emit('dashboard')"
+      routerLink="/dashboard"
+      routerLinkActive="active"
     >
       <svg
         viewBox="0 0 24 24"
@@ -31,9 +30,8 @@
       mat-button
       type="button"
       class="navigation-item"
-      [class.active]="activeTab() === 'apartments'"
-      [attr.aria-current]="activeTab() === 'apartments' ? 'page' : null"
-      (click)="tabSelected.emit('apartments')"
+      routerLink="/apartments"
+      routerLinkActive="active"
     >
       <svg
         viewBox="0 0 24 24"
@@ -51,9 +49,8 @@
       mat-button
       type="button"
       class="navigation-item"
-      [class.active]="activeTab() === 'tenants'"
-      [attr.aria-current]="activeTab() === 'tenants' ? 'page' : null"
-      (click)="tabSelected.emit('tenants')"
+      routerLink="/tenants"
+      routerLinkActive="active"
     >
       <svg
         viewBox="0 0 24 24"
@@ -73,9 +70,8 @@
       mat-button
       type="button"
       class="navigation-item"
-      [class.active]="activeTab() === 'leases'"
-      [attr.aria-current]="activeTab() === 'leases' ? 'page' : null"
-      (click)="tabSelected.emit('leases')"
+      routerLink="/leases"
+      routerLinkActive="active"
     >
       <svg
         viewBox="0 0 24 24"
@@ -93,9 +89,8 @@
       mat-button
       type="button"
       class="navigation-item"
-      [class.active]="activeTab() === 'settings'"
-      [attr.aria-current]="activeTab() === 'settings' ? 'page' : null"
-      (click)="tabSelected.emit('settings')"
+      routerLink="/settings"
+      routerLinkActive="active"
     >
       <svg
         viewBox="0 0 24 24"
@@ -116,8 +111,8 @@
   <div class="sidebar-user">
     <div class="compact-avatar">{{ userInitial() }}</div>
     <div>
-      <strong>{{ username() }}</strong
-      ><span>{{ email() }}</span>
+      <strong>{{ session.username() }}</strong
+      ><span>{{ session.email() }}</span>
     </div>
     <button mat-button type="button" class="logout-action" (click)="logoutRequested.emit()">
       Déconnexion

frontend/src/app/components/workspace-navigation/workspace-navigation.ts

@@ -1,20 +1,18 @@
-import { Component, input, output } from '@angular/core';
+import { Component, inject, input, output } from '@angular/core';
+import { RouterLink, RouterLinkActive } from '@angular/router';
 import { MatButtonModule } from '@angular/material/button';
 import { BrandMark } from '../brand-mark';
 
-export type WorkspaceTab = 'dashboard' | 'apartments' | 'tenants' | 'leases' | 'settings';
+import { SessionService } from '../../services/session.service';
 
 @Component({
   selector: 'app-workspace-navigation',
-  imports: [BrandMark, MatButtonModule],
+  imports: [BrandMark, MatButtonModule, RouterLink, RouterLinkActive],
   templateUrl: './workspace-navigation.html',
   styleUrl: './workspace-navigation.css',
 })
 export class WorkspaceNavigation {
-  readonly activeTab = input.required<WorkspaceTab>();
-  readonly username = input.required<string>();
-  readonly email = input.required<string>();
   readonly userInitial = input.required<string>();
-  readonly tabSelected = output<WorkspaceTab>();
   readonly logoutRequested = output<void>();
+  readonly session = inject(SessionService);
 }