feat: explain local surface residuals

docs/14_LIDAR_DATASET_GATEWAY.md

@@ -54,6 +54,10 @@ Implemented now:
 - deterministic `missioncore.k1-local-surface-review/v1` replay triage:
   `37` attention frames grouped into `21` episodes, with four
   high-priority frames and direct source-frame navigation;
+- point/cell-aligned prediction evidence in
+  `missioncore.k1-local-surface-frame/v2`: the prior-only plane, current
+  lower-cell coordinates, signed residual and derived inlier mask are
+  content-bound and visible as a read-only 3D overlay;
 - a provider-neutral read-only local-surface view in
   **Парк → Диагностика LiDAR**, synchronized to the five existing
   RAVNOVES00 scene selectors and a clickable complete-recording timeline;
@@ -89,8 +93,8 @@ Not implemented:
 - no RELLIS ROS bag admission, continuous synchronized playback or production
   promotion;
 - no ray-cleared free-space or planner-authoritative rolling occupancy map.
-- no point/cell-aligned prior-plane residual overlay yet; aggregate tail
-  evidence is not enough to identify its physical cause.
+- no bounded live-shadow execution of the accepted K1 local-surface profile
+  yet; the residual overlay remains replay-only and non-authoritative.
 
 ## Product surface boundary