fix(week6): hide Files section when empty for non-admins; send richer user info for attribution

client/src/pages/WeeklyPractice.tsx

@@ -1582,6 +1582,7 @@ const WeeklyPractice: React.FC = () => {
         )}
 
         {/* Week Files (Week 6 uploads) */}
+        {(weekFiles.source.length > 0 || weekFiles.translation.length > 0 || (JSON.parse(localStorage.getItem('user') || '{}').role === 'admin')) && (
         <div className="bg-white rounded-xl shadow p-6 mb-8">
           <h3 className="text-lg font-semibold text-gray-900 mb-4">Week {selectedWeek} Files</h3>
           <div className="grid grid-cols-1 md:grid-cols-2 gap-6">
@@ -1684,6 +1685,7 @@ const WeeklyPractice: React.FC = () => {
             </div>
           </div>
         </div>
+        )}
 
         {/* Special Subtitling Interface for Week 2 */}
         {!isWeekTransitioning && selectedWeek === 2 ? (

client/src/services/api.ts

@@ -35,9 +35,13 @@ api.interceptors.request.use(
       try {
         const userData = JSON.parse(user);
         config.headers['user-role'] = userData.role || 'visitor';
+        const derivedUsername = userData.username || userData.name || userData.displayName || (userData.email ? String(userData.email).split('@')[0] : undefined);
         config.headers['user-info'] = JSON.stringify({
-          _id: userData._id,
-          username: userData.username,
+          _id: userData._id || userData.id,
+          username: derivedUsername,
+          name: userData.name,
+          displayName: userData.displayName,
+          email: userData.email,
           role: userData.role
         });
       } catch (error) {