Update Dockerfile

Dockerfile

@@ -8,7 +8,18 @@ RUN apt-get update && apt-get install -y \
     libgl1 \
     && rm -rf /var/lib/apt/lists/*
 
+# Configure Numba cache
+ENV NUMBA_CACHE_DIR=/tmp/numba_cache
+RUN mkdir -p ${NUMBA_CACHE_DIR} && chmod 777 ${NUMBA_CACHE_DIR}
+
 # Install Python dependencies
 RUN pip install --no-cache-dir -r requirements.txt
 
+# Create non-root user and set permissions
+RUN useradd -m appuser && \
+    chown -R appuser /app && \
+    chown -R appuser ${NUMBA_CACHE_DIR}
+
+USER appuser
+
 CMD ["python", "app.py"]