Merge origin/main into feat/placement-interaction-overhaul

Resolve 7 conflicts keeping our snapping migration + floorplan perf work as
source of truth, combined with main's MEP run-continuation / Alt-detach /
latch handles. Rebuilt two import blocks the auto-merge silently truncated
(node-arrow-handles.tsx, duct-fitting/move-tool.tsx).

Verified: tsc clean across core/viewer/editor/nodes/mcp, 451 tests pass,
biome clean. Floorplan view-transform re-render storm confirmed pre-existing
(not introduced by this merge).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

packages/nodes/src/column/renderer.tsx

@@ -2404,18 +2404,7 @@ export const ColumnRenderer = ({ node: rawNode }: { node: ColumnNode }) => {
         textures,
         colorPreset,
       }),
-    [
-      shading,
-      textures,
-      colorPreset,
-      node.material,
-      node.material?.preset,
-      node.material?.properties,
-      node.material?.texture,
-      node.materialPreset,
-      node.slots,
-      sceneMaterials,
-    ],
+    [shading, textures, colorPreset, node, sceneMaterials],
   )
 
   useRegistry(node.id, node.type, ref)