fix: worker healthcheck — Redis ping instead of HTTP check for worker container

Dockerfile

@@ -76,7 +76,7 @@ COPY --chown=appuser:appuser . .
 COPY --from=frontend --chown=appuser:appuser /frontend/dist /app/frontend/dist
 
 # Make entrypoint scripts executable
-RUN chmod +x /app/prestart.sh /app/worker.sh
+RUN chmod +x /app/prestart.sh /app/worker.sh /app/healthcheck.sh
 
 # Create storage directory
 RUN mkdir -p /data/storage && chown -R appuser:appuser /data
@@ -86,6 +86,6 @@ USER appuser
 EXPOSE 8000
 
 HEALTHCHECK --interval=30s --timeout=10s --start-period=30s --retries=3 \
-    CMD curl -fsS http://localhost:8000/api/v1/health || exit 1
+    CMD /app/healthcheck.sh
 
 ENTRYPOINT ["/app/prestart.sh"]