Fix: добавить curl в frontend Dockerfile для healthcheck

frontend/Dockerfile

@@ -21,5 +21,6 @@ COPY --from=builder /app/public ./public
 COPY --from=builder /app/.next/standalone ./
 COPY --from=builder /app/.next/static ./.next/static
 
+RUN apk add --no-cache curl
 EXPOSE 3000
 CMD ["node", "server.js"]