Setup proper directory permission in dockerfile and mark volume

Dockerfile

@@ -12,9 +12,9 @@ WORKDIR /app
 # Install system dependencies and clean up in one layer
 RUN apt-get update \
     && apt-get install -y --no-install-recommends \
-        libpq5 \
-        curl \
-        postgresql-client \
+    libpq5 \
+    curl \
+    postgresql-client \
     && rm -rf /var/lib/apt/lists/*
 
 # Install Python dependencies
@@ -32,14 +32,22 @@ COPY . .
 # Make entrypoint script executable
 RUN chmod +x /app/entrypoint.sh
 
+
 # Create a non-root user
 RUN useradd -m appuser && chown -R appuser:appuser /app
+
+# Create data directory with correct permissions
+RUN mkdir -p /data && \
+    chown -R appuser:appuser /data
+
 USER appuser
 
 # Add healthcheck
 HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
     CMD curl -f http://localhost:8000/health/ || exit 1
 
+VOLUME ["/data"]
+
 # Expose port
 EXPOSE 8000