Add build LLMPhy app

app.py

@@ -0,0 +1,17 @@
+import gradio as gr
+from tray_sim import run_tray_simulation
+
+def simulate_and_render(seed: int):
+    gif_path = run_tray_simulation(seed)
+    return gif_path
+
+iface = gr.Interface(
+    fn=simulate_and_render,
+    inputs=gr.Number(label="Random Seed", value=0),
+    outputs=gr.Image(type="filepath", label="Simulation"),
+    title="TraySim Simulation Viewer",
+    description="Simulates object drop on a tray using MuJoCo and shows the result as a GIF."
+)
+
+if __name__ == "__main__":
+    iface.launch()