Fix dependency versions and import order

- Remove pinned transformers version (4.57.0 is yanked)
- Import unsloth before other ML libraries for optimizations
- Let UV resolve latest compatible versions

iconclass-vlm-sft.py

@@ -3,8 +3,8 @@
 # dependencies = [
 #     "unsloth",
 #     "datasets",
-#     "transformers==4.57.0",
-#     "trl==0.22.2",
+#     "transformers",
+#     "trl",
 #     "huggingface-hub[hf_transfer]",
 #     "pillow",
 #     "torch",
@@ -37,11 +37,13 @@ import sys
 from datetime import datetime
 from typing import Any, Dict
 
+# Import unsloth first for optimizations
+from unsloth import FastVisionModel, UnslothVisionDataCollator
+
 import torch
 from datasets import load_dataset
 from huggingface_hub import HfApi, ModelCard, login
 from trl import SFTConfig, SFTTrainer
-from unsloth import FastVisionModel, UnslothVisionDataCollator
 
 logging.basicConfig(
     level=logging.INFO, format="%(asctime)s - %(levelname)s - %(message)s"