Update Dockerfile

Dockerfile

@@ -2,11 +2,13 @@ FROM python:3.9-slim
 
 WORKDIR /app
 
+# Install system dependencies including libgl1 (fixes ImportError)
 RUN apt-get update && apt-get install -y \
     build-essential \
     curl \
     software-properties-common \
     git \
+    libgl1 \
     && rm -rf /var/lib/apt/lists/*
 
 COPY requirements.txt ./
@@ -18,4 +20,4 @@ EXPOSE 8501
 
 HEALTHCHECK CMD curl --fail http://localhost:8501/_stcore/health
 
-ENTRYPOINT ["streamlit", "run", "src/streamlit_app.py", "--server.port=8501", "--server.address=0.0.0.0"]
+ENTRYPOINT ["streamlit", "run", "src/streamlit_app.py", "--server.port=8501", "--server.address=0.0.0.0"]