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.

Makefile

@@ -12,6 +12,7 @@ build:
 
 test:
 	RSMON_ENV=test CWD=$(CURDIR) go test \
+		./cmd/rsmon-worker \
 		./internal/distworker \
 		./internal/webapp \
 		./internal/workercluster \