fix: add loading state to Cloud file counts

All 30 UX audit findings verified resolved. Added the last missing
loading indicator for Cloud.vue file count fetching. All P0, P1, and P2
items from docs/ux-audit-2026-03.md are now addressed across Login,
Home, Apps, Server, Chat, Federation, Credentials, Settings, Marketplace,
Web5, SystemUpdate, and Cloud views.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

neode-ui/src/views/Cloud.vue

@@ -52,6 +52,7 @@
             {{ section.appLabel }}
           </span>
           <span v-if="!isAppRunning(section.appId)" class="text-white/30">Not installed</span>
+          <span v-else-if="countsLoading" class="text-white/30 animate-pulse">Loading...</span>
           <span v-else-if="sectionCounts[section.id] !== undefined" class="text-white/30">{{ sectionCounts[section.id] }} items</span>
         </div>
       </div>
@@ -76,6 +77,7 @@ import { fileBrowserClient } from '@/api/filebrowser-client'
 const router = useRouter()
 const store = useAppStore()
 const sectionCounts = ref<Record<string, number>>({})
+const countsLoading = ref(false)
 
 const APP_ALIASES: Record<string, string[]> = {
   immich: ['immich_server', 'immich-server'],
@@ -159,6 +161,7 @@ const SECTION_PATHS: Record<string, string> = {
 
 async function loadCounts() {
   if (!fileBrowserRunning.value) return
+  countsLoading.value = true
   try {
     const ok = await fileBrowserClient.login()
     if (!ok) return
@@ -174,6 +177,8 @@ async function loadCounts() {
     }
   } catch (e) {
     if (import.meta.env.DEV) console.warn('FileBrowser count loading failed silently', e)
+  } finally {
+    countsLoading.value = false
   }
 }