Update v1.2.0-beta - Dynamic context menu & permissions

✨ New Features:
- Dynamic permission-based context menus for files and folders
- Support for collaborative folder access control
- Upload to specific folders including shared folders
- Changelog modal for version updates
- Improved dark mode synchronization

🐛 Bug Fixes:
- Fixed context menu displaying incorrect options
- Fixed CSS !important override preventing dynamic menu behavior
- Fixed folder collaboration permission checks
- Fixed breadcrumb navigation with empty segments
- Fixed "Premature close" error loop in attachments
- Fixed missing user variable in admin routes
- Fixed avatar loading COEP policy issues

🔒 Security:
- Added security middleware (CSRF, rate limiting, input validation)
- Fixed collaboration folder access validation
- Improved shared folder permission handling

🎨 UI/UX Improvements:
- Removed Actions column from folder view
- Context menu now properly hides/shows based on permissions
- Better visual feedback for collaborative folders
- Improved upload flow with inline modals

🧹 Code Quality:
- Added collaboration data to folder routes
- Refactored context menu logic for better maintainability
- Added debug logging for troubleshooting
- Improved file upload handling with chunking support

routes/Dpanel/API/Upload.js

@@ -31,10 +31,43 @@ router.post('/', (req, res) => {
         }
 
         const file = files.file[0];
-        const userDir = path.join(process.cwd(), 'cdn-files', req.user.name);
+        const targetFolder = fields.targetFolder ? fields.targetFolder[0] : '';
+        const isSharedFolder = fields.isSharedFolder ? fields.isSharedFolder[0] === 'true' : false;
+        const ownerName = fields.ownerName ? fields.ownerName[0] : '';
+
+        // Construction du chemin cible avec le dossier spécifié
+        let userName = req.user.name;
+
+        // Si c'est un dossier partagé, utiliser le nom du propriétaire
+        if (isSharedFolder && ownerName) {
+            // Vérifier les permissions de collaboration
+            const collaborationFilePath = path.join(__dirname, '../../../data', 'collaboration.json');
+            try {
+                const collaborationData = JSON.parse(await fs.promises.readFile(collaborationFilePath, 'utf8'));
+                const itemId = `folder-${targetFolder}`;
+                const folderInfo = collaborationData.activeFiles[itemId];
+
+                // Vérifier si l'utilisateur a accès au dossier partagé
+                if (!folderInfo || !folderInfo.isCollaborative ||
+                    !folderInfo.activeUsers.some(u => u.id === req.user.id)) {
+                    return res.status(403).send('Accès refusé au dossier partagé');
+                }
+
+                userName = ownerName;
+            } catch (error) {
+                console.error('Error checking collaboration permissions:', error);
+                return res.status(500).send('Erreur lors de la vérification des permissions');
+            }
+        }
+
+        let userDir = path.join(process.cwd(), 'cdn-files', userName);
+        if (targetFolder) {
+            userDir = path.join(userDir, targetFolder);
+        }
+
         const filename = fields.filename ? fields.filename[0] : file.originalFilename;
         const filePath = path.join(userDir, filename);
-        
+
         // Récupérer les champs supplémentaires
         const expiryDate = fields.expiryDate ? fields.expiryDate[0] : '';
         const password = fields.password ? fields.password[0] : '';