初始化项目，由ModelHub XC社区提供模型

Model: pathcosmos/frankenstallm
Source: Original Platform

source/train/__init__.py

@@ -0,0 +1,41 @@
+"""
+train — LLM pretraining package.
+
+Public API:
+    TrainConfig   : Dataclass of training hyper-parameters.
+    Trainer       : Core training loop with gradient accumulation, AMP, and logging.
+
+Utility functions (re-exported from train.utils):
+    get_cosine_schedule_with_warmup
+    save_checkpoint
+    load_checkpoint
+    get_grad_norm
+    setup_ddp
+    cleanup_ddp
+    is_main_process
+"""
+
+from train.trainer import TrainConfig, Trainer
+from train.utils import (
+    cleanup_ddp,
+    get_cosine_schedule_with_warmup,
+    get_grad_norm,
+    is_main_process,
+    load_checkpoint,
+    save_checkpoint,
+    setup_ddp,
+)
+
+__all__ = [
+    # Core classes
+    "TrainConfig",
+    "Trainer",
+    # Utility functions
+    "get_cosine_schedule_with_warmup",
+    "save_checkpoint",
+    "load_checkpoint",
+    "get_grad_norm",
+    "setup_ddp",
+    "cleanup_ddp",
+    "is_main_process",
+]