Update Dockerfile

Dockerfile

@@ -1,13 +1,19 @@
 FROM python:3.10-slim
 
+# Create a non-root user
+RUN useradd -m appuser
+
+# Create app directory and give ownership
 WORKDIR /app
+RUN mkdir -p /app/.files && chown -R appuser /app
 
-# Install Python dependencies
+# Copy files and install dependencies
 COPY requirements.txt .
 RUN pip install --upgrade pip && pip install -r requirements.txt
-
-# Copy the app code
 COPY . .
 
-# Expose port and run Chainlit
+# Switch to non-root user
+USER appuser
+
+# Run Chainlit
 CMD ["chainlit", "run", "app.py", "--host", "0.0.0.0", "--port", "7860"]