fix: move companion indicator into sidebar, inline design

Move CompanionIndicator from global App.vue overlay to DashboardSidebar
next to ControllerIndicator. Redesigned as inline sidebar element with
Tailwind classes — shows muted 'Relay' when idle, orange 'Companion'
with pulse dot when actively receiving input.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

neode-ui/src/App.vue

@@ -37,9 +37,6 @@
     <!-- PWA Install Prompt (Install app, not just Add to Home Screen) -->
     <PWAInstallPrompt />
 
-    <!-- Companion app connected indicator -->
-    <CompanionIndicator />
-
     <!-- Toast notifications - top right, glass style, any page -->
     <Teleport to="body">
       <Transition name="toast">
@@ -78,7 +75,7 @@ import AppLauncherOverlay from './components/AppLauncherOverlay.vue'
 import ToastStack from './components/ToastStack.vue'
 import Screensaver from './components/Screensaver.vue'
 import HelpGuideModal from './components/HelpGuideModal.vue'
-import CompanionIndicator from './components/CompanionIndicator.vue'
+
 import { useControllerNav } from '@/composables/useControllerNav'
 import { playKeyboardTypingSound } from '@/composables/useLoginSounds'
 import { useSpotlightStore } from '@/stores/spotlight'