feat(admin-ui): add app shell (main, App, LoginPage, Nav) and tab stubs

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

crates/proxy/admin-ui/src/App.tsx

@@ -0,0 +1,62 @@
+import { useEffect, useState } from 'react'
+import { useQueryClient } from '@tanstack/react-query'
+import { useAuthStore } from './store/auth'
+import { useWsStore } from './store/ws'
+import { connectWs, disconnectWs } from './api/websocket'
+import LoginPage from './components/layout/LoginPage'
+import Nav from './components/layout/Nav'
+import Dashboard from './tabs/dashboard/Dashboard'
+import RequestLog from './tabs/requests/RequestLog'
+import Settings from './tabs/settings/Settings'
+import Backends from './tabs/backends/Backends'
+import Keys from './tabs/keys/Keys'
+import Models from './tabs/models/Models'
+import Audit from './tabs/audit/Audit'
+import TrafficView from './tabs/traffic/TrafficView'
+import UptimeView from './tabs/uptime/UptimeView'
+
+type Tab = 'dashboard' | 'requests' | 'settings' | 'backends' | 'keys' | 'models' | 'audit' | 'traffic' | 'uptime'
+
+export default function App() {
+  const token = useAuthStore((s) => s.token)
+  const lastEvent = useWsStore((s) => s.lastEvent)
+  const qc = useQueryClient()
+  const [activeTab, setActiveTab] = useState<Tab>('dashboard')
+
+  useEffect(() => {
+    if (token) {
+      connectWs()
+    } else {
+      disconnectWs()
+    }
+  }, [token])
+
+  // Invalidate query cache on relevant WS events.
+  useEffect(() => {
+    if (!lastEvent) return
+    if (lastEvent.type === 'metrics_snapshot') {
+      qc.setQueryData(['metrics'], lastEvent.data)
+    } else if (lastEvent.type === 'backend_health_changed') {
+      qc.invalidateQueries({ queryKey: ['uptime'] })
+    }
+  }, [lastEvent, qc])
+
+  if (!token) return <LoginPage />
+
+  return (
+    <div>
+      <Nav activeTab={activeTab} onTabChange={setActiveTab} />
+      <div className="tab-content">
+        {activeTab === 'dashboard' && <Dashboard />}
+        {activeTab === 'requests' && <RequestLog />}
+        {activeTab === 'settings' && <Settings />}
+        {activeTab === 'backends' && <Backends />}
+        {activeTab === 'keys' && <Keys />}
+        {activeTab === 'models' && <Models />}
+        {activeTab === 'audit' && <Audit />}
+        {activeTab === 'traffic' && <TrafficView />}
+        {activeTab === 'uptime' && <UptimeView />}
+      </div>
+    </div>
+  )
+}

crates/proxy/admin-ui/src/components/layout/LoginPage.tsx

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+import { useState, type FormEvent } from 'react'
+import { useAuthStore } from '../../store/auth'
+
+export default function LoginPage() {
+  const login = useAuthStore((s) => s.login)
+  const [error, setError] = useState('')
+  const [loading, setLoading] = useState(false)
+
+  async function handleSubmit(e: FormEvent<HTMLFormElement>) {
+    e.preventDefault()
+    const token = (e.currentTarget.elements.namedItem('token') as HTMLInputElement).value.trim()
+    if (!token) return
+    setLoading(true)
+    setError('')
+    try {
+      // Validate by hitting a lightweight endpoint with the candidate token.
+      const res = await fetch('/admin/api/metrics', {
+        headers: { Authorization: `Bearer ${token}` },
+      })
+      if (!res.ok) throw new Error('Invalid token')
+      login(token)
+    } catch {
+      setError('Invalid token')
+    } finally {
+      setLoading(false)
+    }
+  }
+
+  return (
+    <div className="login-overlay">
+      <div className="login-card">
+        <div className="login-title">
+          <span className="prompt">&gt;&nbsp;</span>proxy admin
+        </div>
+        <form onSubmit={handleSubmit}>
+          <input
+            type="password"
+            name="token"
+            placeholder="Admin token"
+            autoComplete="current-password"
+            autoFocus
+          />
+          <button type="submit" className="btn btn-primary" disabled={loading}>
+            {loading ? 'Signing in\u2026' : 'Sign in'}
+          </button>
+        </form>
+        <div className="login-error">{error}</div>
+      </div>
+    </div>
+  )
+}

crates/proxy/admin-ui/src/components/layout/Nav.tsx

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+import { useAuthStore } from '../../store/auth'
+import { useWsStore } from '../../store/ws'
+
+type Tab = 'dashboard' | 'requests' | 'settings' | 'backends' | 'keys' | 'models' | 'audit' | 'traffic' | 'uptime'
+
+const TABS: { id: Tab; label: string }[] = [
+  { id: 'dashboard', label: 'Dashboard' },
+  { id: 'requests', label: 'Request Log' },
+  { id: 'settings', label: 'Settings' },
+  { id: 'backends', label: 'Backends' },
+  { id: 'keys', label: 'Access Control' },
+  { id: 'models', label: 'Models' },
+  { id: 'audit', label: 'Audit' },
+  { id: 'traffic', label: 'Traffic' },
+  { id: 'uptime', label: 'Uptime' },
+]
+
+interface NavProps {
+  activeTab: Tab
+  onTabChange: (tab: Tab) => void
+}
+
+export default function Nav({ activeTab, onTabChange }: NavProps) {
+  const logout = useAuthStore((s) => s.logout)
+  const wsStatus = useWsStore((s) => s.status)
+
+  return (
+    <nav className="nav">
+      <div className="nav-brand">anyllm</div>
+      {TABS.map((t) => (
+        <div
+          key={t.id}
+          className={`nav-item${activeTab === t.id ? ' active' : ''}`}
+          onClick={() => onTabChange(t.id)}
+        >
+          {t.label}
+        </div>
+      ))}
+      <div className="nav-right">
+        <span
+          className={`ws-status ${wsStatus === 'connected' ? 'connected' : 'disconnected'}`}
+        >
+          {wsStatus === 'connected' ? 'Live' : 'Offline'}
+        </span>
+        <button
+          className="btn btn-secondary btn-sm"
+          style={{ marginLeft: 12 }}
+          onClick={logout}
+        >
+          Sign out
+        </button>
+      </div>
+    </nav>
+  )
+}

crates/proxy/admin-ui/src/main.tsx

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+import { StrictMode } from 'react'
+import { createRoot } from 'react-dom/client'
+import { QueryClient, QueryClientProvider } from '@tanstack/react-query'
+import App from './App'
+import './styles/globals.css'
+
+const queryClient = new QueryClient({
+  defaultOptions: {
+    queries: {
+      retry: 1,
+      refetchOnWindowFocus: false,
+    },
+  },
+})
+
+createRoot(document.getElementById('root')!).render(
+  <StrictMode>
+    <QueryClientProvider client={queryClient}>
+      <App />
+    </QueryClientProvider>
+  </StrictMode>,
+)

crates/proxy/admin-ui/src/tabs/audit/Audit.tsx

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+export default function Audit() { return <div>Audit</div> }

crates/proxy/admin-ui/src/tabs/backends/Backends.tsx

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+export default function Backends() { return <div>Backends</div> }

crates/proxy/admin-ui/src/tabs/dashboard/Dashboard.tsx

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+export default function Dashboard() { return <div>Dashboard</div> }

crates/proxy/admin-ui/src/tabs/keys/Keys.tsx

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+export default function Keys() { return <div>Keys</div> }

crates/proxy/admin-ui/src/tabs/models/Models.tsx

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+export default function Models() { return <div>Models</div> }

crates/proxy/admin-ui/src/tabs/requests/RequestLog.tsx

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+export default function RequestLog() { return <div>Request Log</div> }

crates/proxy/admin-ui/src/tabs/settings/Settings.tsx

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+export default function Settings() { return <div>Settings</div> }

crates/proxy/admin-ui/src/tabs/traffic/TrafficView.tsx

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+export default function TrafficView() { return <div>Traffic</div> }

crates/proxy/admin-ui/src/tabs/uptime/UptimeView.tsx

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+export default function UptimeView() { return <div>Uptime</div> }