Restrict file uploads and status changes for managers

Prevent managers from uploading files for 'Reçu' status and sending files via webhook.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 9fcf4b21-eb0c-4e53-a567-e2ce4a6ad869
Replit-Commit-Checkpoint-Type: intermediate_checkpoint
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/1957c339-2757-4d1f-8e92-e9f71a1ce58e/9fcf4b21-eb0c-4e53-a567-e2ce4a6ad869/7eY9Hl8

client/src/pages/Avoirs.tsx

@@ -1024,8 +1024,8 @@ export default function Avoirs() {
                 </td>
                 <td className="px-6 py-4 whitespace-nowrap text-right text-sm font-medium">
                   <div className="flex items-center space-x-2">
-                    {/* Upload pour avoirs "Reçu" */}
-                    {avoir?.status === 'Reçu' && (
+                    {/* Upload pour avoirs "Reçu" - interdit aux managers */}
+                    {avoir?.status === 'Reçu' && (user as any)?.role !== 'manager' && (
                       <Button
                         variant="outline"
                         size="sm"