Parking Garages

In the European city I'm running in abstreet at the moment, street parking is neither particularly frequent nor particularly well annotated, but there's a lot of public parking garages.
They are tagged variably, for example like this:
https://www.openstreetmap.org/way/35873197
https://www.openstreetmap.org/node/426819273 + https://www.openstreetmap.org/node/2073535579 + https://www.openstreetmap.org/node/2073535574
https://www.openstreetmap.org/way/35817990

Not all are sufficiently tagged, like [this underground parking](https://www.parken-osnabrueck.de/parken/parkplatzsuche/detail/parkhaus-stadthaus-garage.html), which is reflected only by the two access ramps but not listing the actual parking space and its capacity:
https://www.openstreetmap.org/node/2639155760 + https://www.openstreetmap.org/node/2639155765

The issue describes importing parking garage data from OpenStreetMap. Start by examining the OSM import code, likely in `importer/` or `map_model/src/`. Look for existing parking parsing logic. Understand how parking capacity and geometry are currently handled. Test by running the importer on the provided OSM way and node IDs to see current behavior.

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