feat(planning): consolidate recorded-route localization and spatial scene

Preserve the completed teach-and-repeat laboratory stage: reference preparation, cascaded acquisition, local tracking and recovery, recording lifecycle, replay qualification, and persistent Rerun scene controls. Document the open grid-picking regression and Rerun upgrade contract. No autonomous driving or loop-closure optimization is claimed.

packages/spatial-ui/src/observation.css

@@ -86,15 +86,6 @@
   right: 0.85rem;
 }
 
-.scene-status--top-left {
-  left: 7.1rem;
-}
-
-.scene-status[aria-hidden="true"],
-.scene-metrics[aria-hidden="true"] {
-  display: none;
-}
-
 .observation-source-menu {
   overflow: hidden;
   font-family: var(--nodedc-font-family);
@@ -634,11 +625,6 @@ i[data-availability="error"] {
 }
 
 @media (max-width: 760px) {
-  .scene-status--top-left {
-    top: 4.2rem;
-    left: 0.6rem;
-  }
-
   .observation-timeline[data-accumulation="true"] {
     grid-template-columns: minmax(0, 1fr);
   }