fix(ui): login badge back to the original — gloss stays screensaver/intro only

The Kammergut gloss v3 opt-in had been applied to the /login badge as
well; per operator the glossed disc belongs ONLY on the screensaver and
the onboarding intro (and the splash tap-logo that fronts them). The
login page returns to the plain gradient-ring badge it always had, same
as the dashboard sidebar fix before it.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

neode-ui/src/views/Login.vue

@@ -8,7 +8,7 @@
       >
         <!-- Logo - half in, half out of container -->
         <div class="absolute -top-10 left-1/2 -translate-x-1/2 z-10">
-          <div class="logo-gradient-border logo-gloss w-20 h-20">
+          <div class="logo-gradient-border w-20 h-20">
             <AnimatedLogo no-border fit />
           </div>
         </div>