fix pan speed

frontend/src/App.jsx

@@ -2790,6 +2790,7 @@ function Flow() {
             colorMode="dark"
             panOnDrag={[1]}
             panOnScroll
+            panOnScrollSpeed={1.5}
             panOnScrollMode={PanOnScrollMode.Free}
             zoomOnScroll={false}
             selectionOnDrag

frontend/src/runtimeValuePersistence.js

@@ -0,0 +1,10 @@
+export function sanitizeRuntimeValuesForPersistence(className, runtimeValues) {
+  if (!runtimeValues || typeof runtimeValues !== 'object' || Array.isArray(runtimeValues)) {
+    return {};
+  }
+
+  if (className === 'View3D') {
+    return {};
+  }
+  return { ...runtimeValues };
+}