feat: add mobile application structure with emotion picker and API integration

- Added favicon and icon assets for the mobile app.
- Implemented EmotionPicker component for selecting emotions with child options.
- Created hooks for fetching emotions, feeds, and rapport data.
- Established API service for handling requests and authentication.
- Integrated Zustand for state management of user authentication.
- Defined color palette for the application.
- Set up TypeScript types for various entities including User, Emotion, and Feed.
- Configured Babel and TypeScript for the mobile project.
- Added package.json with necessary dependencies for Expo and React Native.

backend/app/Http/Middleware/RoleMiddleware.php

@@ -11,7 +11,7 @@ class RoleMiddleware
     {
         $user = auth()->user();
 
-        if (!$user || !in_array($user->role->nom, $roles)) {
+        if (!$user || !$user->role || !in_array($user->role->nom, $roles)) {
             return response()->json(['message' => 'Accès non autorisé'], 403);
         }