chore: relicense @unom/app-ui under MIT

Relicense from unspecified to MIT and add the LICENSE file. A dependency audit
confirmed no copyleft (GPL/LGPL/AGPL) deps and no vendored copyleft source, so
the relicense is valid. Patch version bumped for the registry.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

package.json

@@ -1,6 +1,7 @@
 {
 	"name": "@unom/app-ui",
-	"version": "0.1.0",
+	"version": "0.1.1",
+	"license": "MIT",
 	"type": "module",
 	"description": "Composite, app-level UI blocks shared across unom/punktfunk apps (marketing site + docs). One layer up from @unom/ui, which is primitives only.",
 	"files": [