[BUG] LoRA WebUI 的 seed 没有传入 `generate()`，导致推理结果无法可靠重现

LoRA WebUI provides a reasoning seed input box, but the current code only executes torch.manual_seed(seed) and np.random.seed(seed) in lora_ft_webui.py, and does not pass the seed parameter when calling current_model.generate().