Add a data seed option that lets users control the random seed used by SeedableRandomSampler independently…

Add a data seed option that lets users control the random seed used by SeedableRandomSampler independently…: a task in HF ML Tasksmith (Harbor dataset). SeedableRandomSampler should accept an optional data seed keyword argument. When provided (not None ), the sampler's initial seed attribute must…

The task

**`SeedableRandomSampler`** should accept an optional `data_seed` keyword argument. When provided (not `None`), the sampler's `initial_seed` attribute must be set to that value. When omitted or `None`, `initial_seed` must fall back to the current PyTorch global seed (`torch.random.initial_seed()`), preserving…

Part of FineEnvs/HF_ML_Tasksmith.