OsmHeight

Resolves an OSM tag bag to a (minHeight, height) pair in meters.

Order of preference:

1. Explicit height or building:height tag (with optional unit suffix m / ft).

2. building:levels (× METERS_PER_LEVEL) plus optional roof:height.

3. defaultHeight fallback (chosen by building=* value, see defaultHeightForBuilding).

min_height / building:min_height are honored when present (for upper-floor extrusions built on top of a podium, e.g. an antenna on a roof).