HF RL Explorer

convert to tensor does not support torch tensors on "meta" device

convert to tensor does not support torch tensors on "meta" device: a task in MiMo-V2.6-RL-harbor-code: MiMo-V2.6-RL Code (Harbor) (Harbor dataset). os.environ "KERAS BACKEND" = "torch"

Part of FineEnvs/MiMo-V2.6-RL-harbor-code.