Update app to use proper MDM checkpoint and setup

app.py

@@ -214,7 +214,7 @@ def visualize_motion(output_path):
         else:
             action_type = "Moving"
             
-        ax.set_title(f"{action_type} Motion - Frame {{frame}}")
+        ax.set_title(action_type + " Motion - Frame " + str(frame))
         return ax
     
     # Create animation
@@ -225,7 +225,7 @@ def visualize_motion(output_path):
     anim.save(output_path, writer='ffmpeg', fps=30)
     plt.close()
     
-    print(f"Animation saved to {{output_path}}")
+    print("Animation saved to " + output_path)
     return output_path
 
 # Create and visualize a motion