chore: update Dockerfile to use Supervisor and improve static file organization

Dockerfile

@@ -38,22 +38,27 @@ RUN htpasswd -cb /etc/nginx/.htpasswd ${AUTH_USERNAME} ${AUTH_PASSWORD} \
     && chown nginx:nginx /etc/nginx/.htpasswd \
     && chmod 600 /etc/nginx/.htpasswd
 
-# Copy application files
-COPY --from=builder /app/data-api.js \
-           /usr/share/nginx/html/data-api.js \
-           /usr/share/nginx/html/auth-middleware.js \
-           /usr/share/nginx/html/backup-s3.js \
-           /usr/share/nginx/html/package.json \
-           /usr/share/nginx/html/package-lock.json \
-           /usr/share/nginx/html/node_modules \
-           /usr/share/nginx/html/.git \
-           /usr/share/nginx/html/.github \
-           /usr/share/nginx/html/.vscode \
-           /usr/share/nginx/html/README.md 
+# Copy Supervisor configuration
+COPY supervisord.conf /etc/supervisor/conf.d/supervisord.conf
 
-# Expose port 80 for HTTP traffic
+# Copy static website content (HTML, CSS, JS for the frontend)
+COPY index.html /usr/share/nginx/html/
+COPY js/ /usr/share/nginx/html/js/
+COPY css/ /usr/share/nginx/html/css/
+# Add other static asset directories if they exist (e.g., images, fonts, libs)
+# COPY images/ /usr/share/nginx/html/images/
+
+# Create app directory for Node.js API and copy from builder stage
+WORKDIR /app # Make sure this WORKDIR is set before copying to /app
+COPY --from=builder /app .
+
+# Create data directory (volume will be mounted here by docker-compose)
+# Ensure Nginx (and Node.js if it needs to write logs/pid here) has permissions
+RUN mkdir -p /data && chown nginx:nginx /data # Or appropriate user for Node.js if it writes here
+VOLUME /data
+
+# Expose port 80 for Nginx (which handles auth and proxies to API)
 EXPOSE 80
 
-# Command to start Nginx in the foreground
-# This ensures the container keeps running
-CMD ["nginx", "-g", "daemon off;"]
+# Start Supervisor when the container launches
+CMD ["/usr/bin/supervisord", "-c", "/etc/supervisor/conf.d/supervisord.conf"]