Fix: Add full JSON response logging to /api/reports/last-sync

- Log the complete JSON response being sent back to the client
- This helps debug what the client is receiving
- Shows requires_full_sync flag and all response fields in formatted JSON

app/api/routes.py

@@ -1517,7 +1517,7 @@ def api_get_last_sync():
             
             logger.info(f"API get last sync: Client {client_id} - NO sync records found, bets={total_bets_for_client}, stats={total_stats_for_client}, match_reports={total_match_reports_for_client}, requires_full_sync={requires_full_sync}")
             
-            return jsonify({
+            response_data = {
                 'success': True,
                 'message': 'No sync records found for this client',
                 'client_id': client_id,
@@ -1527,7 +1527,11 @@ def api_get_last_sync():
                 'total_syncs': 0,
                 'requires_full_sync': requires_full_sync,  # Signal to client that full sync is needed
                 'server_timestamp': datetime.utcnow().isoformat()
-            }), 200
+            }
+            
+            logger.info(f"API get last sync: Client {client_id} - Returning response: {json.dumps(response_data, indent=2)}")
+            
+            return jsonify(response_data), 200
         
         # Get total sync count for this client
         total_syncs = ReportSync.query.filter_by(client_id=client_id).count()
@@ -1563,6 +1567,7 @@ def api_get_last_sync():
         }
         
         logger.info(f"API get last sync: Client {client_id} - Returning response with requires_full_sync=False (has sync records)")
+        logger.info(f"API get last sync: Client {client_id} - Full response: {json.dumps(response_data, indent=2)}")
         
         # Add sync log details if available
         if last_sync_log: