Fix GPX route processing to support GPX routes (not just tracks)

- Updated create_map_route_from_gpx function to parse GPX routes
- Added support for <rte> and <rtept> elements in addition to tracks
- This fixes the map not showing routes from GPX files that contain route data instead of track data
- Routes from applications like gpxplanner.app now work correctly

app/utils/gpx_processor.py

@@ -325,7 +325,26 @@ def create_map_route_from_gpx(gpx_file_id: int) -> bool:
                             total_distance += distance
                     prev_point = point
         
-        # If no track points, try waypoints
+        # If no track points, try routes
+        if not all_coordinates:
+            for route in gpx.routes:
+                prev_point = None
+                
+                for point in route.points:
+                    coord = [point.latitude, point.longitude]
+                    all_coordinates.append(coord)
+                    
+                    if point.elevation is not None:
+                        elevations.append(point.elevation)
+                    
+                    # Calculate distance
+                    if prev_point:
+                        distance = prev_point.distance_2d(point)
+                        if distance:
+                            total_distance += distance
+                    prev_point = point
+        
+        # If no track or route points, try waypoints
         if not all_coordinates:
             for waypoint in gpx.waypoints:
                 coord = [waypoint.latitude, waypoint.longitude]