lab-agent: follow redirects on public domain health checks

commerce.cruzcloud.net's root path now 301s to /app (Medusa admin) via
a Traefik Middleware — without -L the check reported a false 404 on an
otherwise healthy service. Generic fix (curl -L) instead of
hardcoding a per-domain path, since routing now owns the redirect.

lab-agent/lab-agent.sh

@@ -449,7 +449,11 @@ CLUSTER_WIDE_SNAPSHOT="$("$KUBECTL_BIN" get pods -A -o custom-columns='NS:.metad
 
 PUBLIC_CHECKS=""
 for d in $PUBLIC_DOMAINS; do
-  code="$(curl -s -o /dev/null -w '%{http_code}' --max-time 10 "https://${d}/" 2>/dev/null || echo "000")"
+  # -L: sigue redirects (ej. commerce.cruzcloud.net/ -> /app vía Middleware
+  # de Traefik) para reportar el estado final real, sin tener que
+  # hardcodear una ruta distinta por dominio en este script — el routing
+  # decide el path, no este check.
+  code="$(curl -sL -o /dev/null -w '%{http_code}' --max-time 10 "https://${d}/" 2>/dev/null || echo "000")"
   PUBLIC_CHECKS="${PUBLIC_CHECKS}${d} -> HTTP ${code}\n"
   log "curl https://${d}/ -> HTTP ${code}"
 done