fix: version compatibility and HF_TOKEN for private repo

inference.py

@@ -45,12 +45,16 @@ def download_model_from_hf(
     """
     print(f"Downloading {filename} from HuggingFace Hub ({model_id})...")
     
+    # Get HF token from environment for private repos
+    hf_token = os.environ.get("HF_TOKEN", None)
+    
     try:
         checkpoint_path = hf_hub_download(
             repo_id=model_id,
             filename=filename,
             local_dir=local_dir,
-            force_download=force_download
+            force_download=force_download,
+            token=hf_token
         )
         print(f"Model downloaded to: {checkpoint_path}")
         return checkpoint_path
@@ -248,10 +252,12 @@ class CalligraphyGenerator:
         
         # Try to download from HF Hub
         print(f"Font file not found locally, downloading from HuggingFace Hub...")
+        hf_token = os.environ.get("HF_TOKEN", None)
         try:
             font_path = hf_hub_download(
                 repo_id=HF_MODEL_ID,
-                filename="FangZhengKaiTiFanTi-1.ttf"
+                filename="FangZhengKaiTiFanTi-1.ttf",
+                token=hf_token
             )
             print(f"Font downloaded to: {font_path}")
             return font_path

requirements.txt

@@ -1,7 +1,7 @@
-accelerate
-einops
-transformers
-huggingface-hub
+accelerate>=0.30.0
+einops>=0.8.0
+transformers>=4.43.0
+huggingface-hub>=0.24.0
 optimum-quanto
 sentencepiece
 torch