fix sync issue in debug tab

templates/settings/tabs/debugging.html

@@ -130,7 +130,20 @@ document.getElementById('syncFilesBtn').addEventListener('click', async function
             }
         });
         
-        const data = await response.json();
+        console.log('Sync response status:', response.status);
+        console.log('Sync response headers:', Object.fromEntries(response.headers.entries()));
+        
+        const responseText = await response.text();
+        console.log('Sync response text:', responseText);
+        
+        let data;
+        try {
+            data = JSON.parse(responseText);
+            console.log('Parsed sync response:', data);
+        } catch (parseError) {
+            console.error('JSON parse error:', parseError);
+            throw new Error('Invalid response format from server');
+        }
         
         if (response.ok) {
             status.textContent = 'Sync completed successfully!';
@@ -139,6 +152,7 @@ document.getElementById('syncFilesBtn').addEventListener('click', async function
             throw new Error(data.error || 'Sync failed');
         }
     } catch (error) {
+        console.error('Sync error:', error);
         status.textContent = error.message;
         status.className = 'text-danger small';
     } finally {