feat: add Go1 training and MuJoCo deployment

deploy/deploy_mujoco/deploy_go1.py

@@ -0,0 +1,12 @@
+"""Run an exported Go1 CTS policy in MuJoCo.
+
+The model, observations, actions, and MuJoCo actuators all use the Unitree SDK
+joint order: FR, FL, RR, RL. The exported policy maintains its own history and
+therefore consumes one 45-dimensional observation frame per call.
+"""
+
+from deploy_go2 import main
+
+
+if __name__ == "__main__":
+    main("go1.yaml")