fix: register unifi pages with shell NavVisibilityRegistry; v1.12.1

The Access tab persists user/group grants in unifi_page_grants and the
existing RouteMatched listener honors them on the request path, but
NavItem::visibleTo() only consulted the page's required_permission —
so a granted user never saw the menu entry to reach the page. Register
the unifi.* prefix with the shell's NavVisibilityRegistry so the
sidebar lists exactly the pages the grant table allows.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

composer.json

@@ -1,7 +1,7 @@
 {
     "name": "dashboard/unifi",
     "description": "UniFi network management, WiFi stats, and captive portal authentication for the Dashboard platform",
-    "version": "1.12.0",
+    "version": "1.12.1",
     "type": "library",
     "license": "MIT",
     "autoload": {