debug: add logging to loadNotes function for troubleshooting

Added console.log statements to track:
- When notes API fetch is initiated
- Number of notes fetched
- The actual notes data returned

This helps identify if the issue is with the API request, the response,
or the data handling in the frontend.

src/pages/Index.tsx

@@ -255,7 +255,10 @@ const Index = () => {
 
   const loadNotes = async () => {
     try {
+      console.log('[DEBUG] Fetching notes from API...');
       const fetchedNotes = await NotesService.getNotes();
+      console.log('[DEBUG] Notes fetched:', fetchedNotes.length, 'notes');
+      console.log('[DEBUG] Notes data:', fetchedNotes);
       if (Array.isArray(fetchedNotes)) {
         setNotes(fetchedNotes);
       }