chore: complete Phase 3 UI cleanup — verify all views use real data

- UI-CLEAN-04: Web5.vue verified clean (DID, wallet, DWN, credentials all from RPC)
- UI-CLEAN-05: Settings.vue no section duplication with other pages
- UI-CLEAN-06: Marketplace — fix photoprims.svg → photoprism.svg typo, all 33 icons verified
- UI-CLEAN-07: Cloud.vue file management from real FileBrowser API
- UI-CLEAN-08: Federation.vue all data from federation RPC endpoints
- UI-CLEAN-09: Chat.vue proper AIUI availability check with fallback
- UI-CLEAN-10: Apps.vue shows real containers from store + intentional web bookmarks

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

neode-ui/mock-backend.js

@@ -363,7 +363,7 @@ const marketplaceMetadata = {
   'nextcloud': { title: 'Nextcloud', shortDesc: 'Self-hosted cloud storage and collaboration', icon: '/assets/img/app-icons/nextcloud.webp' },
   'vaultwarden': { title: 'Vaultwarden', shortDesc: 'Self-hosted password manager (Bitwarden-compatible)', icon: '/assets/img/app-icons/vaultwarden.webp' },
   'jellyfin': { title: 'Jellyfin', shortDesc: 'Free media server for movies, music, and photos', icon: '/assets/img/app-icons/jellyfin.webp' },
-  'photoprism': { title: 'PhotoPrism', shortDesc: 'AI-powered photo management', icon: '/assets/img/app-icons/photoprims.svg' },
+  'photoprism': { title: 'PhotoPrism', shortDesc: 'AI-powered photo management', icon: '/assets/img/app-icons/photoprism.svg' },
   'immich': { title: 'Immich', shortDesc: 'High-performance photo and video backup', icon: '/assets/img/app-icons/immich.png' },
   'filebrowser': { title: 'File Browser', shortDesc: 'Web-based file manager', icon: '/assets/img/app-icons/file-browser.webp' },
   'nginx-proxy-manager': { title: 'Nginx Proxy Manager', shortDesc: 'Easy proxy management with SSL', icon: '/assets/img/app-icons/nginx.svg' },
@@ -876,6 +876,16 @@ app.post('/rpc/v1', (req, res) => {
         return res.json({ result: null })
       }
 
+      case 'server.set-name': {
+        const name = (params?.name || '').trim()
+        if (!name || name.length > 64) {
+          return res.json({ error: { code: -1, message: 'Name must be 1-64 characters' } })
+        }
+        mockData['server-info'].name = name
+        broadcastUpdate()
+        return res.json({ result: { name } })
+      }
+
       case 'server.echo': {
         return res.json({ result: { message: params?.message || 'Hello from Archipelago!' } })
       }