fix(Dockerfile): correct CMD path for Next.js application startup (#305)

Author: xun082

Dockerfile

@@ -110,4 +110,4 @@ HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
   CMD node -e "require('http').get('http://localhost:3000/api/health', (r) => {process.exit(r.statusCode === 200 ? 0 : 1)})"
 
 WORKDIR /app/apps/DocFlow
-CMD ["../../node_modules/.bin/next", "start"]
+CMD ["node_modules/.bin/next", "start"]