update: add a physic scenne

src/components/ui/InteractPrompt.tsx

@@ -0,0 +1,17 @@
+import { useCameraMode } from "@/hooks/debug/useCameraMode";
+import { useInteraction } from "@/hooks/useInteraction";
+
+export function InteractPrompt(): React.JSX.Element | null {
+  const cameraMode = useCameraMode();
+  const { focused, holding } = useInteraction();
+
+  if (cameraMode !== "player") return null;
+  if (!focused || holding || focused.kind !== "trigger") return null;
+
+  return (
+    <div className="interact-prompt" aria-live="polite">
+      <kbd className="interact-prompt__key">E</kbd>
+      <span className="interact-prompt__label">{focused.label}</span>
+    </div>
+  );
+}