Phase 004: remove the desktop shell, website tooling, and bundled hermes CLI

- Drop all desktop/Electron branches, scripts, and UI (title bar, pets,
  desktop bridge); LAN endpoint kind is now web/custom only
- Replace the bundled hermes CLI with user-side installation: add
  GET /api/hermes/cli-status plus a HermesMissingView onboarding guide
- Remove the version-management UI (snapshots handled by git) and prune
  dead website/mcu/claude scripts and lockfile entries

packages/client/src/App.vue

@@ -6,14 +6,11 @@ import { useI18n } from 'vue-i18n'
 import { getThemeOverrides } from '@/styles/theme'
 import { useTheme } from '@/composables/useTheme'
 import AppSidebar from '@/components/layout/AppSidebar.vue'
-import DesktopTitleBar from '@/components/layout/DesktopTitleBar.vue'
 import { useKeyboard } from '@/composables/useKeyboard'
 import { useAppStore } from '@/stores/hermes/app'
 import SessionSearchModal from '@/components/hermes/chat/SessionSearchModal.vue'
 import AuthEventListener from '@/components/auth/AuthEventListener.vue'
 import DefaultCredentialPrompt from '@/components/auth/DefaultCredentialPrompt.vue'
-import WebPet from '@/components/hermes/pets/WebPet.vue'
-import { desktopBridge } from '@/utils/desktop-bridge'
 
 const { isDark, isComic } = useTheme()
 const { t } = useI18n()
@@ -36,14 +33,6 @@ const nodeVersionLow = computed(() => {
   return !isNaN(major) && major < 23
 })
 
-const isDesktopShell = computed(() => desktopBridge()?.isDesktop === true)
-const isDesktopPetRoute = computed(() => route.name === 'desktop.pet')
-const showWebPet = computed(() => !isLoginPage.value && !isDesktopShell.value && !isDesktopPetRoute.value)
-const hasDesktopTitleBar = computed(() => {
-  const platform = desktopBridge()?.platform
-  return isDesktopShell.value && (platform === 'darwin' || platform === 'win32')
-})
-
 function handleMobileMenuClick() {
   if (usesPageSidebar.value) {
     window.dispatchEvent(new CustomEvent('hermes:open-page-sidebar'))
@@ -76,9 +65,7 @@ useKeyboard()
       <AuthEventListener />
       <NDialogProvider>
         <NNotificationProvider>
-          <router-view v-if="isDesktopPetRoute" />
-          <div v-else class="app-shell" :class="{ desktop: isDesktopShell, 'desktop-titlebar-host': hasDesktopTitleBar }">
-            <DesktopTitleBar v-if="isDesktopShell" />
+          <div class="app-shell">
             <div v-if="nodeVersionLow" class="node-warning-bar">
               {{ t('sidebar.nodeVersionWarning', { version: appStore.nodeVersion }) }}
             </div>
@@ -93,9 +80,8 @@ useKeyboard()
               </main>
             </div>
           </div>
-          <WebPet v-if="showWebPet" />
-          <SessionSearchModal v-if="!isDesktopPetRoute" />
-          <DefaultCredentialPrompt v-if="!isDesktopPetRoute" />
+          <SessionSearchModal />
+          <DefaultCredentialPrompt />
         </NNotificationProvider>
       </NDialogProvider>
     </NMessageProvider>
@@ -128,10 +114,6 @@ useKeyboard()
   }
 }
 
-.app-shell.desktop-titlebar-host .app-layout {
-  --vh: calc(1vh - 0.36px);
-}
-
 .app-main {
   flex: 1;
   min-width: 0;