[Feature] Need offline training support for Dflash

[UltramanKuz]

Checklist

• 1. If the issue you raised is not a feature but a question, please raise a discussion at https://github.com/sgl-project/SpecForge/discussions/new/choose Otherwise, it will be closed.
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Motivation

I would like to know if there are any plans for developing offline training for Dflash? The online training has caused the OOM issue for me

Related resources

No response

[jiapingW]

We are developing the training and inference disaggregtaed recently.