I'm using h5web against Jupyter and HSDS files, and some datasets with odd/custom datatypes make the viewer…

I'm using h5web against Jupyter and HSDS files, and some datasets with odd/custom datatypes make the viewer…: a task in MiMo-V2.6-RL-harbor-code: MiMo-V2.6-RL Code (Harbor) (Harbor dataset). Expected outcomes: - Unknown or unsupported datatype information from Jupyter-backed datasets should not…