feat: Implémentation authentification NIST SP 800-63B v3.0.8

- Ajout du service PasswordSecurityService conforme NIST SP 800-63B
- Vérification des mots de passe contre la base Have I Been Pwned
- Validation : minimum 8 caractères, maximum 64 caractères
- Pas d'exigences de composition obligatoires (conforme NIST)
- Intégration dans LoginController et UserController
- Génération de mots de passe sécurisés non compromis

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

app/lib/presentation/widgets/responsive_navigation.dart

@@ -155,14 +155,25 @@ class _ResponsiveNavigationState extends State<ResponsiveNavigation> {
   /// Construction de la barre de navigation inférieure pour mobile
   Widget _buildBottomNavigationBar() {
     final theme = Theme.of(context);
+    
+    // Définir les couleurs selon le rôle (admin = rouge, user = vert)
+    final Color selectedColor = widget.isAdmin ? Colors.red : Colors.green;
 
-    return NavigationBar(
-      selectedIndex: widget.selectedIndex,
-      onDestinationSelected: widget.onDestinationSelected,
-      backgroundColor: theme.colorScheme.surface,
-      elevation: 8,
-      labelBehavior: NavigationDestinationLabelBehavior.alwaysHide,
-      destinations: widget.destinations,
+    return Theme(
+      data: theme.copyWith(
+        colorScheme: theme.colorScheme.copyWith(
+          onSecondaryContainer: selectedColor, // Couleur de l'icône sélectionnée
+          secondaryContainer: selectedColor.withOpacity(0.15), // Couleur de fond de l'indicateur
+        ),
+      ),
+      child: NavigationBar(
+        selectedIndex: widget.selectedIndex,
+        onDestinationSelected: widget.onDestinationSelected,
+        backgroundColor: theme.colorScheme.surface,
+        elevation: 8,
+        labelBehavior: NavigationDestinationLabelBehavior.alwaysHide,
+        destinations: widget.destinations,
+      ),
     );
   }
 
@@ -345,6 +356,10 @@ class _ResponsiveNavigationState extends State<ResponsiveNavigation> {
     final theme = Theme.of(context);
     final isSelected = widget.selectedIndex == index;
     final IconData? iconData = (icon is Icon) ? (icon).icon : null;
+    
+    // Définir les couleurs selon le rôle (admin = rouge, user = vert)
+    final Color selectedColor = widget.isAdmin ? Colors.red : Colors.green;
+    final Color unselectedColor = theme.colorScheme.onSurface.withOpacity(0.6);
 
     // Remplacer certains titres si l'interface est de type "user"
     String displayTitle = title;
@@ -371,16 +386,14 @@ class _ResponsiveNavigationState extends State<ResponsiveNavigation> {
               height: 50,
               decoration: BoxDecoration(
                 color: isSelected
-                    ? theme.colorScheme.primary.withOpacity(0.1)
+                    ? selectedColor.withOpacity(0.1)
                     : Colors.transparent,
                 borderRadius: BorderRadius.circular(8),
               ),
               child: iconData != null
                   ? Icon(
                       iconData,
-                      color: isSelected
-                          ? theme.colorScheme.primary
-                          : theme.colorScheme.onSurface.withOpacity(0.6),
+                      color: isSelected ? selectedColor : unselectedColor,
                       size: 24,
                     )
                   : icon,
@@ -394,22 +407,18 @@ class _ResponsiveNavigationState extends State<ResponsiveNavigation> {
         leading: iconData != null
             ? Icon(
                 iconData,
-                color: isSelected
-                    ? theme.colorScheme.primary
-                    : theme.colorScheme.onSurface.withOpacity(0.6),
+                color: isSelected ? selectedColor : unselectedColor,
               )
             : icon,
         title: Text(
           displayTitle,
           style: TextStyle(
-            color: isSelected
-                ? theme.colorScheme.primary
-                : theme.colorScheme.onSurface,
+            color: isSelected ? selectedColor : theme.colorScheme.onSurface,
             fontWeight: isSelected ? FontWeight.bold : FontWeight.normal,
           ),
         ),
         tileColor:
-            isSelected ? theme.colorScheme.primary.withOpacity(0.1) : null,
+            isSelected ? selectedColor.withOpacity(0.1) : null,
         onTap: () {
           widget.onDestinationSelected(index);
         },