Update Gradio version for better compatibility with HF Spaces

requirements.txt

@@ -1,8 +1,9 @@
 # Dependencies for Hugging Face Space - Phishing Detection App
 # Matches pyproject.toml but only includes inference dependencies
 
-# Core app framework (using 4.x for better HF Spaces compatibility)
-gradio>=4.0.0,<5.0.0
+# Core app framework with compatible huggingface_hub version
+gradio==4.44.0
+huggingface_hub>=0.19.0,<0.20.0
 
 # ML and Data (matching pyproject.toml versions)
 scikit-learn>=1.8.0