fix: installer checks containers only; the panel reads signed manifests from the registry when it has none; unsigned-updater nodes are labeled from the panel's manifests; sign node release images; release 0.3.0 [CI]

web/package.json

@@ -1,7 +1,7 @@
 {
   "name": "moshiro-web",
   "private": true,
-  "version": "0.1.0",
+  "version": "0.3.0",
   "workspaces": [
     "display",
     "admin"