fix: pin huggingface-hub==0.14.1 and diffusers==0.23.0 to restore cached_download

Dockerfile

@@ -34,8 +34,10 @@ RUN python -m pip install --upgrade pip && \
     python -m pip install --index-url https://download.pytorch.org/whl/cpu torch torchvision torchaudio --upgrade --force-reinstall && \
     # Ensure xformers is not installed
     python -m pip uninstall -y xformers || true && \
-    # Speed up and lower RAM during model load
-    python -m pip install accelerate
+    # Speed up and lower RAM during model load (avoid upgrading hub)
+    python -m pip install --no-deps accelerate && \
+    # Ensure compatible hub version for cached_download used by code
+    python -m pip install --upgrade --force-reinstall "huggingface-hub==0.14.1" "diffusers==0.23.0"
 
 EXPOSE 7860