Home Map page mini-preview gains a north mini-icon and a fillRect scale
bar with a round-distance label (metric/imperial), and its status line now
shows the distance to the nearest tracked contact alongside fix/track.
Trail map labels no longer smear in dense clusters: each placed label
reserves a rect and a new one tries four offsets around its marker,
skipping (marker still shown) when none fit without overlap.
Verified: WioTrackerL1_companion_solo_dual builds clean.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>