Canonicalize shared toolbar mechanics

registry/components.json

@@ -212,14 +212,17 @@
       "status": "baseline",
       "package": "@nodedc/ui-react",
       "exports": ["Toolbar"],
+      "domPackage": "@nodedc/ui-dom",
+      "domExports": ["createToolbarController"],
       "domContract": ["nodedc-toolbar-wrap", "nodedc-toolbar", "nodedc-toolbar__button"],
       "summary": "Engine/BIM-derived magnifying application toolbar with left, right and bottom placements.",
       "variants": ["left", "right", "bottom"],
-      "behavior": ["controlled active item", "lens magnification", "optional autohide hotzone", "theme-independent geometry"],
+      "behavior": ["controlled active item", "spring lens magnification without flex reflow", "axis-aware neighbor shift", "optional delayed autohide hotzone", "theme-independent geometry"],
       "rules": [
         "Engine defaults are background #111115, border #111117, outline #1c1c1c, min 25 px, max 87 px and five lens items.",
         "Toolbar actions call application navigation; they do not duplicate route state.",
-        "Placement and material are controlled values and belong to the persisted application layout."
+        "Placement and material are controlled values and belong to the persisted application layout.",
+        "The shared component owns pointer tracking, spring animation, lens geometry and autohide timers; applications must not reimplement them."
       ]
     },
     {