fix: update healthcheck command for frontend service and install curl in Dockerfile

compose.prod.yml

@@ -48,7 +48,7 @@ services:
     depends_on:
       - backend
     healthcheck:
-      test: ["CMD", "nc", "-z", "localhost", "3000"]
+      test: ["CMD", "curl", "-f", "http://localhost:3000"]
       interval: 10s
       timeout: 5s
       retries: 5

thoughts-frontend/Dockerfile

@@ -17,7 +17,7 @@ RUN bun run build
 
 FROM node:22-slim AS release
 
-RUN apt-get update && apt-get install -y --no-install-recommends netcat-openbsd && rm -rf /var/lib/apt/lists/*
+RUN apt-get update && apt-get install -y --no-install-recommends curl && rm -rf /var/lib/apt/lists/*
 
 COPY --from=builder /app/public ./public
 COPY --from=builder /app/.next/standalone ./