Add missing hand_pose "raw_action_dim" (#10)

Add missing hand_pose "raw_action_dim" to the mapping table.

Co-authored-by: lfengad <liangf@nvidia.com>

Author: lzhang57

cosmos_framework/data/vfm/action/domain_utils.py

@@ -24,6 +24,7 @@
 EMBODIMENT_TO_RAW_ACTION_DIM: dict[str, int] = {
     "av": 9,
     "camera_pose": 9,
+    "hand_pose": 57,
     "pusht": 2,
     "umi": 10,
     "bridge_orig_lerobot": 10,