lamp_terrain_occlusion_scan takes an optional light height and ray clearance, counts blocked
samples within 15 yd, prints the ground height, and ranks by the near count. Used to pick the
leftovers B1 scenes (Elwynn campfires, lampposts, bridge lamp): the gather and the terrain
receiver work, the terrain-blocked ground is grazing or at the rim, so the lit image is unchanged.
LIGHTING.md says so.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
