fixing docker

Dockerfile

@@ -1,11 +1,19 @@
 FROM python:3.10-slim
 
 WORKDIR /app
+
+# Copy project files
 COPY . .
 
-RUN pip install --no-cache-dir -r requirements.txt \
-    && mkdir -p /app/.files \
-    && chmod -R 777 /app/.files
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Create the required directory and adjust its ownership
+RUN mkdir -p /app/.files && chown -R 1000:1000 /app/.files
+
+# Create a non-root user and switch to it
+RUN adduser --disabled-password --gecos '' appuser && chown -R appuser:appuser /app
+USER appuser
 
 EXPOSE 7860
+
 CMD ["chainlit", "run", "app.py", "--host", "0.0.0.0", "--port", "7860"]