Fix remaining API calls - add /api prefix to delete, put, and vote endpoints

client/src/pages/TutorialTasks.tsx

@@ -388,7 +388,7 @@ const TutorialTasks: React.FC = () => {
     if (!editingSubmission || !editSubmissionText.trim()) return;
 
     try {
-      const response = await api.put(`/submissions/${editingSubmission.id}`, {
+      const response = await api.put(`/api/submissions/${editingSubmission.id}`, {
         transcreation: editSubmissionText
       });
 
@@ -415,7 +415,7 @@ const TutorialTasks: React.FC = () => {
 
 
     try {
-      const response = await api.delete(`/submissions/${submissionId}`);
+      const response = await api.delete(`/api/submissions/${submissionId}`);
 
       if (response.status === 200) {
   

client/src/pages/VoteResults.tsx

@@ -135,7 +135,7 @@ const VoteResults: React.FC = () => {
       
       const body = rank ? { rank } : { cancel: true };
       
-      const response = await api.post(`/submissions/${submissionId}/vote`, body);
+      const response = await api.post(`/api/submissions/${submissionId}/vote`, body);
 
       if (response.data) {
         // Refresh the data