feat: Discover view, Fleet dashboard, MeshMap, type fixes

- New Discover.vue (app store redesign)
- Fleet.vue dashboard for .228
- MeshMap.vue component
- Fixed Discover.vue type errors (unused var, type predicate)
- Various UI updates (Apps, Dashboard, Marketplace, Mesh, Web5)

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

neode-ui/src/views/Dashboard.vue

@@ -197,9 +197,10 @@
             to="/dashboard/apps"
             class="mode-switcher-btn"
             :class="{ 'mode-switcher-btn-active': (route.path === '/dashboard/apps' || route.path.startsWith('/dashboard/apps/')) && route.query.tab !== 'services' }"
+            @click.prevent="router.push({ path: '/dashboard/apps', query: {} })"
           >My Apps</RouterLink>
           <RouterLink
-            to="/dashboard/marketplace"
+            to="/dashboard/discover"
             class="mode-switcher-btn"
             :class="{ 'mode-switcher-btn-active': route.path === '/dashboard/marketplace' || route.path.startsWith('/dashboard/marketplace/') || route.path === '/dashboard/discover' }"
           >App Store</RouterLink>
@@ -302,7 +303,7 @@
           :class="{
             'nav-tab-active': item.isCombined
               ? (item.path === '/dashboard/apps'
-                  ? (route.path.includes('/apps') || route.path.includes('/marketplace') || route.path.includes('/app-session'))
+                  ? (route.path.includes('/apps') || route.path.includes('/marketplace') || route.path.includes('/discover') || route.path.includes('/app-session'))
                   : (route.path.includes('/cloud') || route.path.includes('/server')))
               : undefined
           }"
@@ -428,6 +429,7 @@ const ROUTE_BACKGROUNDS: Record<string, string> = {
   '/dashboard': 'bg-home.jpg',
   '/dashboard/': 'bg-home.jpg',
   '/dashboard/apps': 'bg-myapps.jpg',
+  '/dashboard/discover': 'bg-appstore.jpg',
   '/dashboard/marketplace': 'bg-appstore.jpg',
   '/dashboard/cloud': 'bg-cloud.jpg',
   '/dashboard/mesh': 'bg-mesh.jpg',
@@ -449,6 +451,7 @@ const isDarkRoute = computed(() => {
          p.includes('/dashboard/settings') ||
          (p.includes('/dashboard/apps') && !isDetailRoute(p)) ||
          p.includes('/dashboard/marketplace') ||
+         p.includes('/dashboard/discover') ||
          p.includes('/dashboard/cloud')
 })