chore(deps): consume @insignia/iios-messaging-ui from the Gitea registry

The SDK is now published to git.lynkedup.cloud (@insignia scope); switch from the
local file: tarball to ^0.1.0 so prod/CI installs resolve it. Install auth uses
GITEA_TOKEN (read:package), same as @insignia/iios-kernel-client.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

package.json

@@ -11,7 +11,7 @@
   "dependencies": {
     "@abe-kap/appshell-sdk": "^0.2.6",
     "@insignia/iios-kernel-client": "^0.1.4",
-    "@insignia/iios-messaging-ui": "file:../iios/packages/iios-messaging-ui/insignia-iios-messaging-ui-0.1.0.tgz",
+    "@insignia/iios-messaging-ui": "^0.1.0",
     "clsx": "^2.1.1",
     "lucide-react": "^1.21.0",
     "next": "16.2.9",