Fix PDFLoader to process pages individually for correct page numbering

Add better debug output for secrets in Dockerfile

Add robust error handling for OPENAI_API_KEY in Dockerfile

Update Dockerfile to use uv run for executing download_pdfs.py

Fix shell syntax error in Dockerfile

Improve Dockerfile HF_TOKEN handling with better error messages

Fix Dockerfile to install and use huggingface_hub in the same command

Fix Dockerfile to install huggingface_hub before login

Fix Hugging Face authentication

Clean repository setup with PDF downloading