add robot models xml etc

remove isaaclab, add test scripts

added simulator to the hub

remove mujoco env

test_dance_minimal.py

@@ -0,0 +1,38 @@
+#!/usr/bin/env python
+"""Minimal test script for dance_102 motion imitation."""
+
+import sys
+from pathlib import Path
+import time
+sys.path.insert(0, str(Path(__file__).parent / "src"))
+
+from lerobot.robots.unitree_g1.config_unitree_g1 import UnitreeG1Config
+from lerobot.robots.unitree_g1.unitree_g1 import UnitreeG1
+
+config = UnitreeG1Config(
+    motion_imitation_control=True,  # Enable motion imitation (dance)
+    simulation_mode=False
+)
+
+robot = UnitreeG1(config)
+
+# Keep alive
+try:
+    print("\n" + "="*60)
+    print("Dance_102 Motion Imitation Running!")
+    print(f"Motion duration: {robot.motion_loader.duration:.2f}s")
+    print("The robot will loop the dance motion")
+    print("Press Ctrl+C to stop")
+    print("="*60 + "\n")
+    
+    while True:
+        time.sleep(1.0)
+        # Print progress every second
+        if robot.motion_loader:
+            progress = (robot.motion_loader.current_time / robot.motion_loader.duration) * 100
+            print(f"Progress: {progress:.1f}% - Time: {robot.motion_loader.current_time:.2f}s / {robot.motion_loader.duration:.2f}s")
+except KeyboardInterrupt:
+    print("\nStopping dance...")
+    robot.stop_motion_imitation_thread()
+    print("Dance stopped!")
+