The /incidents/[id] page kept its own stop numbering (every geocoded call,
1..N) and path length, while its MapView now numbers only movement
incidents' non-ghosted stops. A fire with 3 geocoded calls showed stops
1-3 on the spine and unnumbered dots on the map. Use the shared
pathStops()/stopNumbers(), show 'km path' only for movement incidents,
and surface the 'may be merged' flag in the header.
Legend: a plain pin is also what an older (pre-#236) pin with no recorded
precision looks like; say so instead of claiming 'Street address'.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>