- Replace OSM Overpass transit data with the Rejseplanen GTFS feed
(routes keyed by (agency, short name); styles from modes.yaml)
- Draw one shape per (style, ref, direction), choosing the shape that
serves the most in-area stops so lines pass the stops we show
- Collapse stops by names (verified unambiguous); prune stops whose
serving refs have no drawn line within 300 m
- Patch Københavns Havn + Nordhavn into the area polygon so ferry
routes and sub-harbour metro tunnels survive clipping; 100 m buffer
closes relation boundary slivers
- Drop OSM download pipeline; keep tiled basemap