Wrong asc-/descent values with prepocessed PBF files

Due to https://github.com/GIScience/osm-transform/issues/17 the the reported elevation differences are incorrect. For example, both the ascent and descent values for a route from Berlin to Munich are both over 80.000 m!

<img width="1776" height="925" alt="Image" src="https://github.com/user-attachments/assets/ea4f6fce-46f0-4b1d-8a7f-70b510f2927c" />