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/attachments.js

@@ -116,7 +116,11 @@ router.get('/:userId/:filename', async (req, res) => {
             await pipeline(readStream, res);
         }
     } catch (err) {
-        ErrorLogger.error('Error handling request:', err);
+        // Ne pas logger les fermetures prématurées côté client (comportement normal)
+        // Cela se produit quand l'utilisateur annule le téléchargement, ferme le navigateur, etc.
+        if (err.code !== 'ERR_STREAM_PREMATURE_CLOSE' && err.code !== 'ECONNRESET' && err.code !== 'EPIPE') {
+            ErrorLogger.error('Error handling request:', err);
+        }
         if (!res.headersSent) {
             res.status(500).send('Error reading file.');
         }