Update Dockerfile

Dockerfile

@@ -1,7 +1,15 @@
 FROM python:3.12-slim
 
-RUN useradd user
+# Create non-root user
+RUN useradd -m -s /bin/bash user
 
+# Install system dependencies as root
+RUN apt-get update && \
+    apt-get install -y libreoffice ffmpeg && \
+    apt-get clean && \
+    rm -rf /var/lib/apt/lists/*
+
+# Switch to non-root user AFTER installing system packages
 USER user
 
 ENV HOME=/home/user \
@@ -10,8 +18,8 @@ ENV HOME=/home/user \
 WORKDIR $HOME/app
 COPY --chown=user ./ $HOME/app
 
+# Install Python dependencies as non-root
 RUN pip install --trusted-host pypi.python.org -r requirements.txt
-RUN apt-get update && apt-get install -y libreoffice && apt-get install -y ffmpeg
 
 EXPOSE 7860
 
@@ -19,4 +27,4 @@ ENV NAME World
 ENV NUMBA_CACHE_DIR=/tmp/numba_cache
 ENV NUMBA_DISABLE_JIT=0
 
-CMD ["python", "app.py"]
+CMD ["python", "app.py"]