A real, zoomable OpenStreetMap — the same tiles and the same slippy-map library as the
"pick a Place on the map" picker everywhere else in the app, not a flat static silhouette. Pin size = current
activity at that Place. Dashed lines = a carry (Echo/Murmur) in the last 6 hours, respecting
prefers-reduced-motion. Scroll or pinch to zoom in on a cluster, drag to pan, click a pin for that
Place's feed.