fix(ci): publish valid worker images

Normalize registry and release tag references before Buildx runs. Use process-local liveness so a control-plane outage does not restart a healthy worker container.

Dockerfile

@@ -32,6 +32,6 @@ EXPOSE 27401 37401
 USER rsmon-worker
 
 HEALTHCHECK --interval=30s --timeout=10s --start-period=10s --retries=3 \
-    CMD ["/usr/local/bin/rsmon-worker", "health"]
+    CMD ["/usr/local/bin/rsmon-worker", "liveness"]
 
 ENTRYPOINT ["/usr/local/bin/rsmon-worker"]