feat: Phase 2 웹 UI — Dashboard + Chat 페이지

- hub-web: Vite + React + Tailwind + React Router
- Dashboard: 백엔드 상태 카드, GPU 모니터, 모델 테이블 (15초 자동 갱신)
- Chat: 모델 선택 드롭다운 + SSE 스트리밍 + Markdown 렌더링
- Login: 비밀번호 인증 (httpOnly 쿠키)
- Docker: nginx 기반 정적 서빙 + Caddy 연동
- Caddyfile: flush_interval -1 (SSE 버퍼링 방지)
- proxy_ollama: embed usage 더미값 0→1 (SDK 호환)

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

caddy/Caddyfile

@@ -1,6 +1,8 @@
 :80 {
 	handle /v1/* {
-		reverse_proxy hub-api:8000
+		reverse_proxy hub-api:8000 {
+			flush_interval -1
+		}
 	}
 	handle /auth/* {
 		reverse_proxy hub-api:8000
@@ -15,7 +17,7 @@
 		reverse_proxy hub-api:8000
 	}
 	handle {
-		respond "AI Gateway - hub-web not yet deployed" 200
+		reverse_proxy hub-web:80
 	}
 }
 # TLS: caddy-tailscale 플러그인 또는 tailscale cert 자동 갱신 사용

docker-compose.yml

@@ -11,6 +11,14 @@ services:
       - caddy_data:/data
     depends_on:
       - hub-api
+      - hub-web
+    networks:
+      - gateway-net
+
+  hub-web:
+    build: ./hub-web
+    container_name: gpu-hub-web
+    restart: unless-stopped
     networks:
       - gateway-net
 

hub-api/services/proxy_ollama.py

@@ -136,7 +136,7 @@ async def generate_embedding(
         "object": "list",
         "data": embeddings_data,
         "model": model,
-        "usage": {"prompt_tokens": 0, "total_tokens": 0},
+        "usage": {"prompt_tokens": 1, "total_tokens": 1},
     }
 
 

hub-web/.gitignore

@@ -0,0 +1,24 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+lerna-debug.log*
+
+node_modules
+dist
+dist-ssr
+*.local
+
+# Editor directories and files
+.vscode/*
+!.vscode/extensions.json
+.idea
+.DS_Store
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?

hub-web/Dockerfile

@@ -0,0 +1,12 @@
+FROM node:20-alpine AS build
+WORKDIR /app
+COPY package*.json ./
+RUN npm ci
+COPY . .
+RUN npm run build
+
+FROM nginx:alpine
+COPY --from=build /app/dist /usr/share/nginx/html
+COPY nginx.conf /etc/nginx/conf.d/default.conf
+EXPOSE 80
+CMD ["nginx", "-g", "daemon off;"]

hub-web/README.md

@@ -0,0 +1,73 @@
+# React + TypeScript + Vite
+
+This template provides a minimal setup to get React working in Vite with HMR and some ESLint rules.
+
+Currently, two official plugins are available:
+
+- [@vitejs/plugin-react](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react) uses [Oxc](https://oxc.rs)
+- [@vitejs/plugin-react-swc](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react-swc) uses [SWC](https://swc.rs/)
+
+## React Compiler
+
+The React Compiler is not enabled on this template because of its impact on dev & build performances. To add it, see [this documentation](https://react.dev/learn/react-compiler/installation).
+
+## Expanding the ESLint configuration
+
+If you are developing a production application, we recommend updating the configuration to enable type-aware lint rules:
+
+```js
+export default defineConfig([
+  globalIgnores(['dist']),
+  {
+    files: ['**/*.{ts,tsx}'],
+    extends: [
+      // Other configs...
+
+      // Remove tseslint.configs.recommended and replace with this
+      tseslint.configs.recommendedTypeChecked,
+      // Alternatively, use this for stricter rules
+      tseslint.configs.strictTypeChecked,
+      // Optionally, add this for stylistic rules
+      tseslint.configs.stylisticTypeChecked,
+
+      // Other configs...
+    ],
+    languageOptions: {
+      parserOptions: {
+        project: ['./tsconfig.node.json', './tsconfig.app.json'],
+        tsconfigRootDir: import.meta.dirname,
+      },
+      // other options...
+    },
+  },
+])
+```
+
+You can also install [eslint-plugin-react-x](https://github.com/Rel1cx/eslint-react/tree/main/packages/plugins/eslint-plugin-react-x) and [eslint-plugin-react-dom](https://github.com/Rel1cx/eslint-react/tree/main/packages/plugins/eslint-plugin-react-dom) for React-specific lint rules:
+
+```js
+// eslint.config.js
+import reactX from 'eslint-plugin-react-x'
+import reactDom from 'eslint-plugin-react-dom'
+
+export default defineConfig([
+  globalIgnores(['dist']),
+  {
+    files: ['**/*.{ts,tsx}'],
+    extends: [
+      // Other configs...
+      // Enable lint rules for React
+      reactX.configs['recommended-typescript'],
+      // Enable lint rules for React DOM
+      reactDom.configs.recommended,
+    ],
+    languageOptions: {
+      parserOptions: {
+        project: ['./tsconfig.node.json', './tsconfig.app.json'],
+        tsconfigRootDir: import.meta.dirname,
+      },
+      // other options...
+    },
+  },
+])
+```

hub-web/eslint.config.js

@@ -0,0 +1,23 @@
+import js from '@eslint/js'
+import globals from 'globals'
+import reactHooks from 'eslint-plugin-react-hooks'
+import reactRefresh from 'eslint-plugin-react-refresh'
+import tseslint from 'typescript-eslint'
+import { defineConfig, globalIgnores } from 'eslint/config'
+
+export default defineConfig([
+  globalIgnores(['dist']),
+  {
+    files: ['**/*.{ts,tsx}'],
+    extends: [
+      js.configs.recommended,
+      tseslint.configs.recommended,
+      reactHooks.configs.flat.recommended,
+      reactRefresh.configs.vite,
+    ],
+    languageOptions: {
+      ecmaVersion: 2020,
+      globals: globals.browser,
+    },
+  },
+])

hub-web/index.html

@@ -0,0 +1,13 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>hub-web</title>
+  </head>
+  <body>
+    <div id="root"></div>
+    <script type="module" src="/src/main.tsx"></script>
+  </body>
+</html>

hub-web/nginx.conf

@@ -0,0 +1,9 @@
+server {
+    listen 80;
+    root /usr/share/nginx/html;
+    index index.html;
+
+    location / {
+        try_files $uri $uri/ /index.html;
+    }
+}

hub-web/package.json

@@ -0,0 +1,34 @@
+{
+  "name": "hub-web",
+  "private": true,
+  "version": "0.0.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "tsc -b && vite build",
+    "lint": "eslint .",
+    "preview": "vite preview"
+  },
+  "dependencies": {
+    "react": "^19.2.4",
+    "react-dom": "^19.2.4",
+    "react-markdown": "^10.1.0",
+    "react-router-dom": "^7.13.2"
+  },
+  "devDependencies": {
+    "@eslint/js": "^9.39.4",
+    "@tailwindcss/vite": "^4.2.2",
+    "@types/node": "^24.12.0",
+    "@types/react": "^19.2.14",
+    "@types/react-dom": "^19.2.3",
+    "@vitejs/plugin-react": "^6.0.1",
+    "eslint": "^9.39.4",
+    "eslint-plugin-react-hooks": "^7.0.1",
+    "eslint-plugin-react-refresh": "^0.5.2",
+    "globals": "^17.4.0",
+    "tailwindcss": "^4.2.2",
+    "typescript": "~5.9.3",
+    "typescript-eslint": "^8.57.0",
+    "vite": "^8.0.1"
+  }
+}

hub-web/public/icons.svg

@@ -0,0 +1,24 @@
+<svg xmlns="http://www.w3.org/2000/svg">
+  <symbol id="bluesky-icon" viewBox="0 0 16 17">
+    <g clip-path="url(#bluesky-clip)"><path fill="#08060d" d="M7.75 7.735c-.693-1.348-2.58-3.86-4.334-5.097-1.68-1.187-2.32-.981-2.74-.79C.188 2.065.1 2.812.1 3.251s.241 3.602.398 4.13c.52 1.744 2.367 2.333 4.07 2.145-2.495.37-4.71 1.278-1.805 4.512 3.196 3.309 4.38-.71 4.987-2.746.608 2.036 1.307 5.91 4.93 2.746 2.72-2.746.747-4.143-1.747-4.512 1.702.189 3.55-.4 4.07-2.145.156-.528.397-3.691.397-4.13s-.088-1.186-.575-1.406c-.42-.19-1.06-.395-2.741.79-1.755 1.24-3.64 3.752-4.334 5.099"/></g>
+    <defs><clipPath id="bluesky-clip"><path fill="#fff" d="M.1.85h15.3v15.3H.1z"/></clipPath></defs>
+  </symbol>
+  <symbol id="discord-icon" viewBox="0 0 20 19">
+    <path fill="#08060d" d="M16.224 3.768a14.5 14.5 0 0 0-3.67-1.153c-.158.286-.343.67-.47.976a13.5 13.5 0 0 0-4.067 0c-.128-.306-.317-.69-.476-.976A14.4 14.4 0 0 0 3.868 3.77C1.546 7.28.916 10.703 1.231 14.077a14.7 14.7 0 0 0 4.5 2.306q.545-.748.965-1.587a9.5 9.5 0 0 1-1.518-.74q.191-.14.372-.293c2.927 1.369 6.107 1.369 8.999 0q.183.152.372.294-.723.437-1.52.74.418.838.963 1.588a14.6 14.6 0 0 0 4.504-2.308c.37-3.911-.63-7.302-2.644-10.309m-9.13 8.234c-.878 0-1.599-.82-1.599-1.82 0-.998.705-1.82 1.6-1.82.894 0 1.614.82 1.599 1.82.001 1-.705 1.82-1.6 1.82m5.91 0c-.878 0-1.599-.82-1.599-1.82 0-.998.705-1.82 1.6-1.82.893 0 1.614.82 1.599 1.82 0 1-.706 1.82-1.6 1.82"/>
+  </symbol>
+  <symbol id="documentation-icon" viewBox="0 0 21 20">
+    <path fill="none" stroke="#aa3bff" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.35" d="m15.5 13.333 1.533 1.322c.645.555.967.833.967 1.178s-.322.623-.967 1.179L15.5 18.333m-3.333-5-1.534 1.322c-.644.555-.966.833-.966 1.178s.322.623.966 1.179l1.534 1.321"/>
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+  </symbol>
+  <symbol id="github-icon" viewBox="0 0 19 19">
+    <path fill="#08060d" fill-rule="evenodd" d="M9.356 1.85C5.05 1.85 1.57 5.356 1.57 9.694a7.84 7.84 0 0 0 5.324 7.44c.387.079.528-.168.528-.376 0-.182-.013-.805-.013-1.454-2.165.467-2.616-.935-2.616-.935-.349-.91-.864-1.143-.864-1.143-.71-.48.051-.48.051-.48.787.051 1.2.805 1.2.805.695 1.194 1.817.857 2.268.649.064-.507.27-.857.49-1.052-1.728-.182-3.545-.857-3.545-3.87 0-.857.31-1.558.8-2.104-.078-.195-.349-1 .077-2.078 0 0 .657-.208 2.14.805a7.5 7.5 0 0 1 1.946-.26c.657 0 1.328.092 1.946.26 1.483-1.013 2.14-.805 2.14-.805.426 1.078.155 1.883.078 2.078.502.546.799 1.247.799 2.104 0 3.013-1.818 3.675-3.558 3.87.284.247.528.714.528 1.454 0 1.052-.012 1.896-.012 2.156 0 .208.142.455.528.377a7.84 7.84 0 0 0 5.324-7.441c.013-4.338-3.48-7.844-7.773-7.844" clip-rule="evenodd"/>
+  </symbol>
+  <symbol id="social-icon" viewBox="0 0 20 20">
+    <path fill="none" stroke="#aa3bff" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.35" d="M12.5 6.667a4.167 4.167 0 1 0-8.334 0 4.167 4.167 0 0 0 8.334 0"/>
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+  </symbol>
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+</svg>

hub-web/src/App.tsx

@@ -0,0 +1,61 @@
+import { useState, useEffect } from 'react';
+import { BrowserRouter, Routes, Route, Navigate, NavLink } from 'react-router-dom';
+import { AuthCtx } from './lib/auth';
+import { getMe, logout } from './lib/api';
+import Login from './pages/Login';
+import Dashboard from './pages/Dashboard';
+import Chat from './pages/Chat';
+
+export default function App() {
+  const [role, setRole] = useState<string | null>(null);
+  const [loading, setLoading] = useState(true);
+
+  useEffect(() => {
+    getMe().then(me => {
+      setRole(me?.role ?? null);
+      setLoading(false);
+    });
+  }, []);
+
+  if (loading) {
+    return <div className="flex items-center justify-center h-screen text-[hsl(var(--muted-foreground))]">Loading...</div>;
+  }
+
+  if (!role) {
+    return (
+      <AuthCtx.Provider value={{ role, setRole }}>
+        <Login />
+      </AuthCtx.Provider>
+    );
+  }
+
+  return (
+    <AuthCtx.Provider value={{ role, setRole }}>
+      <BrowserRouter>
+        <div className="min-h-screen flex flex-col dark">
+          <nav className="border-b border-[hsl(var(--border))] px-6 py-3 flex items-center gap-6">
+            <span className="font-semibold text-lg">AI Gateway</span>
+            <NavLink to="/" className={({ isActive }) => isActive ? 'text-[hsl(var(--foreground))]' : 'text-[hsl(var(--muted-foreground))] hover:text-[hsl(var(--foreground))]'}>Dashboard</NavLink>
+            <NavLink to="/chat" className={({ isActive }) => isActive ? 'text-[hsl(var(--foreground))]' : 'text-[hsl(var(--muted-foreground))] hover:text-[hsl(var(--foreground))]'}>Chat</NavLink>
+            <div className="ml-auto flex items-center gap-3">
+              <span className="text-sm text-[hsl(var(--muted-foreground))]">{role}</span>
+              <button
+                onClick={async () => { await logout(); setRole(null); }}
+                className="text-sm text-[hsl(var(--muted-foreground))] hover:text-[hsl(var(--foreground))]"
+              >
+                Logout
+              </button>
+            </div>
+          </nav>
+          <main className="flex-1">
+            <Routes>
+              <Route path="/" element={<Dashboard />} />
+              <Route path="/chat" element={<Chat />} />
+              <Route path="*" element={<Navigate to="/" />} />
+            </Routes>
+          </main>
+        </div>
+      </BrowserRouter>
+    </AuthCtx.Provider>
+  );
+}

hub-web/src/index.css

@@ -0,0 +1,41 @@
+@import "tailwindcss";
+
+:root {
+  --background: 0 0% 100%;
+  --foreground: 240 10% 3.9%;
+  --card: 0 0% 100%;
+  --card-foreground: 240 10% 3.9%;
+  --muted: 240 4.8% 95.9%;
+  --muted-foreground: 240 3.8% 46.1%;
+  --border: 240 5.9% 90%;
+  --primary: 240 5.9% 10%;
+  --primary-foreground: 0 0% 98%;
+  --destructive: 0 84.2% 60.2%;
+  --ring: 240 5.9% 10%;
+  --radius: 0.5rem;
+}
+
+.dark {
+  --background: 240 10% 3.9%;
+  --foreground: 0 0% 98%;
+  --card: 240 10% 3.9%;
+  --card-foreground: 0 0% 98%;
+  --muted: 240 3.7% 15.9%;
+  --muted-foreground: 240 5% 64.9%;
+  --border: 240 3.7% 15.9%;
+  --primary: 0 0% 98%;
+  --primary-foreground: 240 5.9% 10%;
+  --destructive: 0 62.8% 30.6%;
+  --ring: 240 4.9% 83.9%;
+}
+
+* {
+  border-color: hsl(var(--border));
+}
+
+body {
+  margin: 0;
+  background-color: hsl(var(--background));
+  color: hsl(var(--foreground));
+  font-family: system-ui, -apple-system, sans-serif;
+}

hub-web/src/lib/api.ts

@@ -0,0 +1,112 @@
+const BASE = '';
+
+export async function login(password: string): Promise<{ role: string; token: string }> {
+  const res = await fetch(`${BASE}/auth/login`, {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json' },
+    credentials: 'include',
+    body: JSON.stringify({ password }),
+  });
+  if (!res.ok) {
+    const err = await res.json().catch(() => null);
+    throw new Error(err?.error?.message || 'Login failed');
+  }
+  return res.json();
+}
+
+export async function getMe(): Promise<{ role: string } | null> {
+  const res = await fetch(`${BASE}/auth/me`, { credentials: 'include' });
+  if (!res.ok) return null;
+  return res.json();
+}
+
+export async function logout(): Promise<void> {
+  await fetch(`${BASE}/auth/logout`, { method: 'POST', credentials: 'include' });
+}
+
+export interface Model {
+  id: string;
+  owned_by: string;
+  capabilities: string[];
+  backend_id: string;
+  backend_status: string;
+}
+
+export async function getModels(): Promise<Model[]> {
+  const res = await fetch(`${BASE}/v1/models`, { credentials: 'include' });
+  if (!res.ok) return [];
+  const data = await res.json();
+  return data.data || [];
+}
+
+export interface BackendHealth {
+  id: string;
+  type: string;
+  status: string;
+  models: string[];
+  latency_ms: number;
+}
+
+export interface GpuInfo {
+  utilization: number;
+  temperature: number;
+  vram_used: number;
+  vram_total: number;
+  power_draw: number;
+  name: string;
+}
+
+export async function getHealth(): Promise<{ backends: BackendHealth[]; gpu: GpuInfo | null }> {
+  const res = await fetch(`${BASE}/health`);
+  if (!res.ok) return { backends: [], gpu: null };
+  return res.json();
+}
+
+export interface ChatMessage {
+  role: 'user' | 'assistant' | 'system';
+  content: string;
+}
+
+export async function* streamChat(
+  model: string,
+  messages: ChatMessage[],
+): AsyncGenerator<string, void> {
+  const res = await fetch(`${BASE}/v1/chat/completions`, {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json' },
+    credentials: 'include',
+    body: JSON.stringify({ model, messages, stream: true }),
+  });
+
+  if (!res.ok) {
+    const err = await res.json().catch(() => null);
+    throw new Error(err?.error?.message || `Chat failed: ${res.status}`);
+  }
+
+  const reader = res.body?.getReader();
+  if (!reader) throw new Error('No response body');
+  const decoder = new TextDecoder();
+  let buffer = '';
+
+  while (true) {
+    const { done, value } = await reader.read();
+    if (done) break;
+
+    buffer += decoder.decode(value, { stream: true });
+    const lines = buffer.split('\n');
+    buffer = lines.pop() || '';
+
+    for (const line of lines) {
+      if (!line.startsWith('data: ')) continue;
+      const data = line.slice(6).trim();
+      if (data === '[DONE]') return;
+      try {
+        const parsed = JSON.parse(data);
+        const content = parsed.choices?.[0]?.delta?.content;
+        if (content) yield content;
+      } catch {
+        // skip malformed chunks
+      }
+    }
+  }
+}

hub-web/src/lib/auth.ts

@@ -0,0 +1,12 @@
+import { createContext, useContext } from 'react';
+
+export interface AuthContext {
+  role: string | null;
+  setRole: (role: string | null) => void;
+}
+
+export const AuthCtx = createContext<AuthContext>({ role: null, setRole: () => {} });
+
+export function useAuth() {
+  return useContext(AuthCtx);
+}

hub-web/src/main.tsx

@@ -0,0 +1,10 @@
+import { StrictMode } from 'react'
+import { createRoot } from 'react-dom/client'
+import './index.css'
+import App from './App.tsx'
+
+createRoot(document.getElementById('root')!).render(
+  <StrictMode>
+    <App />
+  </StrictMode>,
+)

hub-web/src/pages/Chat.tsx

@@ -0,0 +1,130 @@
+import { useState, useEffect, useRef } from 'react';
+import ReactMarkdown from 'react-markdown';
+import type { Model, ChatMessage } from '../lib/api';
+import { getModels, streamChat } from '../lib/api';
+
+export default function Chat() {
+  const [models, setModels] = useState<Model[]>([]);
+  const [selectedModel, setSelectedModel] = useState('');
+  const [messages, setMessages] = useState<ChatMessage[]>([]);
+  const [input, setInput] = useState('');
+  const [streaming, setStreaming] = useState(false);
+  const bottomRef = useRef<HTMLDivElement>(null);
+
+  useEffect(() => {
+    getModels().then(mdls => {
+      const chatModels = mdls.filter(m => m.capabilities.includes('chat'));
+      setModels(chatModels);
+      if (chatModels.length > 0 && !selectedModel) {
+        setSelectedModel(chatModels[0].id);
+      }
+    });
+  }, []);
+
+  useEffect(() => {
+    bottomRef.current?.scrollIntoView({ behavior: 'smooth' });
+  }, [messages]);
+
+  const handleSend = async () => {
+    if (!input.trim() || !selectedModel || streaming) return;
+
+    const userMsg: ChatMessage = { role: 'user', content: input.trim() };
+    const newMessages = [...messages, userMsg];
+    setMessages(newMessages);
+    setInput('');
+    setStreaming(true);
+
+    const assistantMsg: ChatMessage = { role: 'assistant', content: '' };
+    setMessages([...newMessages, assistantMsg]);
+
+    try {
+      for await (const chunk of streamChat(selectedModel, newMessages)) {
+        assistantMsg.content += chunk;
+        setMessages(prev => [...prev.slice(0, -1), { ...assistantMsg }]);
+      }
+    } catch (err) {
+      assistantMsg.content += `\n\n[Error: ${err instanceof Error ? err.message : 'Unknown error'}]`;
+      setMessages(prev => [...prev.slice(0, -1), { ...assistantMsg }]);
+    } finally {
+      setStreaming(false);
+    }
+  };
+
+  const handleKeyDown = (e: React.KeyboardEvent) => {
+    if (e.key === 'Enter' && !e.shiftKey) {
+      e.preventDefault();
+      handleSend();
+    }
+  };
+
+  return (
+    <div className="flex flex-col h-[calc(100vh-57px)]">
+      {/* Header */}
+      <div className="border-b border-[hsl(var(--border))] px-6 py-3 flex items-center gap-4">
+        <select
+          value={selectedModel}
+          onChange={e => setSelectedModel(e.target.value)}
+          className="px-3 py-1.5 rounded-md border border-[hsl(var(--border))] bg-[hsl(var(--background))] text-sm"
+        >
+          {models.map(m => (
+            <option key={m.id} value={m.id}>{m.id} ({m.owned_by})</option>
+          ))}
+        </select>
+        <button
+          onClick={() => setMessages([])}
+          className="text-sm text-[hsl(var(--muted-foreground))] hover:text-[hsl(var(--foreground))]"
+        >
+          Clear
+        </button>
+      </div>
+
+      {/* Messages */}
+      <div className="flex-1 overflow-y-auto px-6 py-4 space-y-4">
+        {messages.length === 0 && (
+          <div className="flex items-center justify-center h-full text-[hsl(var(--muted-foreground))]">
+            Send a message to start
+          </div>
+        )}
+        {messages.map((msg, i) => (
+          <div key={i} className={`flex ${msg.role === 'user' ? 'justify-end' : 'justify-start'}`}>
+            <div className={`max-w-[80%] rounded-lg px-4 py-2 ${
+              msg.role === 'user'
+                ? 'bg-[hsl(var(--primary))] text-[hsl(var(--primary-foreground))]'
+                : 'bg-[hsl(var(--muted))]'
+            }`}>
+              {msg.role === 'assistant' ? (
+                <div className="prose prose-sm prose-invert max-w-none">
+                  <ReactMarkdown>{msg.content || '...'}</ReactMarkdown>
+                </div>
+              ) : (
+                <p className="text-sm whitespace-pre-wrap">{msg.content}</p>
+              )}
+            </div>
+          </div>
+        ))}
+        <div ref={bottomRef} />
+      </div>
+
+      {/* Input */}
+      <div className="border-t border-[hsl(var(--border))] px-6 py-4">
+        <div className="flex gap-3">
+          <textarea
+            value={input}
+            onChange={e => setInput(e.target.value)}
+            onKeyDown={handleKeyDown}
+            placeholder="Type a message... (Enter to send, Shift+Enter for newline)"
+            rows={1}
+            className="flex-1 px-3 py-2 rounded-md border border-[hsl(var(--border))] bg-[hsl(var(--background))] text-[hsl(var(--foreground))] resize-none focus:outline-none focus:ring-2 focus:ring-[hsl(var(--ring))]"
+          />
+          <button
+            onClick={handleSend}
+            disabled={streaming || !input.trim()}
+            className="px-4 py-2 rounded-md bg-[hsl(var(--primary))] text-[hsl(var(--primary-foreground))] hover:opacity-90 disabled:opacity-50"
+          >
+            {streaming ? '...' : 'Send'}
+          </button>
+        </div>
+      </div>
+    </div>
+  );
+}

hub-web/src/pages/Dashboard.tsx

@@ -0,0 +1,96 @@
+import { useState, useEffect } from 'react';
+import type { BackendHealth, GpuInfo, Model } from '../lib/api';
+import { getHealth, getModels } from '../lib/api';
+
+export default function Dashboard() {
+  const [backends, setBackends] = useState<BackendHealth[]>([]);
+  const [gpu, setGpu] = useState<GpuInfo | null>(null);
+  const [models, setModels] = useState<Model[]>([]);
+
+  const refresh = async () => {
+    const [health, mdls] = await Promise.all([getHealth(), getModels()]);
+    setBackends(health.backends);
+    setGpu(health.gpu);
+    setModels(mdls);
+  };
+
+  useEffect(() => {
+    refresh();
+    const id = setInterval(refresh, 15000);
+    return () => clearInterval(id);
+  }, []);
+
+  return (
+    <div className="p-6 space-y-6">
+      <div className="flex items-center justify-between">
+        <h2 className="text-xl font-semibold">Backends</h2>
+        <button onClick={refresh} className="text-sm text-[hsl(var(--muted-foreground))] hover:text-[hsl(var(--foreground))]">Refresh</button>
+      </div>
+
+      <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-4">
+        {backends.map(b => (
+          <div key={b.id} className="rounded-lg border border-[hsl(var(--border))] p-4 space-y-2">
+            <div className="flex items-center justify-between">
+              <span className="font-medium">{b.id}</span>
+              <span className={`text-xs px-2 py-0.5 rounded-full ${b.status === 'healthy' ? 'bg-green-500/20 text-green-400' : 'bg-red-500/20 text-red-400'}`}>
+                {b.status}
+              </span>
+            </div>
+            <div className="text-sm text-[hsl(var(--muted-foreground))]">{b.type}</div>
+            <div className="text-sm">{b.models.join(', ')}</div>
+            {b.latency_ms > 0 && <div className="text-xs text-[hsl(var(--muted-foreground))]">{b.latency_ms}ms</div>}
+          </div>
+        ))}
+      </div>
+
+      {gpu && (
+        <>
+          <h2 className="text-xl font-semibold">GPU</h2>
+          <div className="rounded-lg border border-[hsl(var(--border))] p-4 grid grid-cols-2 md:grid-cols-4 gap-4">
+            <Stat label="Utilization" value={`${gpu.utilization}%`} />
+            <Stat label="Temperature" value={`${gpu.temperature}C`} />
+            <Stat label="VRAM" value={`${gpu.vram_used}/${gpu.vram_total} MB`} />
+            <Stat label="Power" value={`${gpu.power_draw}W`} />
+          </div>
+        </>
+      )}
+
+      <h2 className="text-xl font-semibold">Models</h2>
+      <div className="rounded-lg border border-[hsl(var(--border))] overflow-hidden">
+        <table className="w-full text-sm">
+          <thead className="bg-[hsl(var(--muted))]">
+            <tr>
+              <th className="text-left px-4 py-2">Model</th>
+              <th className="text-left px-4 py-2">Backend</th>
+              <th className="text-left px-4 py-2">Capabilities</th>
+              <th className="text-left px-4 py-2">Status</th>
+            </tr>
+          </thead>
+          <tbody>
+            {models.map(m => (
+              <tr key={`${m.backend_id}-${m.id}`} className="border-t border-[hsl(var(--border))]">
+                <td className="px-4 py-2 font-mono">{m.id}</td>
+                <td className="px-4 py-2">{m.owned_by}</td>
+                <td className="px-4 py-2">{m.capabilities.join(', ')}</td>
+                <td className="px-4 py-2">
+                  <span className={`text-xs px-2 py-0.5 rounded-full ${m.backend_status === 'healthy' ? 'bg-green-500/20 text-green-400' : 'bg-red-500/20 text-red-400'}`}>
+                    {m.backend_status}
+                  </span>
+                </td>
+              </tr>
+            ))}
+          </tbody>
+        </table>
+      </div>
+    </div>
+  );
+}
+
+function Stat({ label, value }: { label: string; value: string }) {
+  return (
+    <div>
+      <div className="text-xs text-[hsl(var(--muted-foreground))]">{label}</div>
+      <div className="text-lg font-semibold">{value}</div>
+    </div>
+  );
+}

hub-web/src/pages/Login.tsx

@@ -0,0 +1,48 @@
+import { useState } from 'react';
+import { login } from '../lib/api';
+import { useAuth } from '../lib/auth';
+
+export default function Login() {
+  const { setRole } = useAuth();
+  const [password, setPassword] = useState('');
+  const [error, setError] = useState('');
+  const [loading, setLoading] = useState(false);
+
+  const handleSubmit = async (e: React.FormEvent) => {
+    e.preventDefault();
+    setError('');
+    setLoading(true);
+    try {
+      const { role } = await login(password);
+      setRole(role);
+    } catch (err) {
+      setError(err instanceof Error ? err.message : 'Login failed');
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  return (
+    <div className="dark flex items-center justify-center min-h-screen bg-[hsl(var(--background))]">
+      <form onSubmit={handleSubmit} className="w-80 space-y-4">
+        <h1 className="text-2xl font-semibold text-center text-[hsl(var(--foreground))]">AI Gateway</h1>
+        <input
+          type="password"
+          value={password}
+          onChange={e => setPassword(e.target.value)}
+          placeholder="Password"
+          autoFocus
+          className="w-full px-3 py-2 rounded-md border border-[hsl(var(--border))] bg-[hsl(var(--background))] text-[hsl(var(--foreground))] focus:outline-none focus:ring-2 focus:ring-[hsl(var(--ring))]"
+        />
+        <button
+          type="submit"
+          disabled={loading}
+          className="w-full px-3 py-2 rounded-md bg-[hsl(var(--primary))] text-[hsl(var(--primary-foreground))] hover:opacity-90 disabled:opacity-50"
+        >
+          {loading ? 'Logging in...' : 'Login'}
+        </button>
+        {error && <p className="text-sm text-[hsl(var(--destructive))] text-center">{error}</p>}
+      </form>
+    </div>
+  );
+}

hub-web/tsconfig.app.json

@@ -0,0 +1,32 @@
+{
+  "compilerOptions": {
+    "tsBuildInfoFile": "./node_modules/.tmp/tsconfig.app.tsbuildinfo",
+    "target": "ES2023",
+    "useDefineForClassFields": true,
+    "lib": ["ES2023", "DOM", "DOM.Iterable"],
+    "module": "ESNext",
+    "types": ["vite/client"],
+    "skipLibCheck": true,
+
+    /* Bundler mode */
+    "moduleResolution": "bundler",
+    "allowImportingTsExtensions": true,
+    "verbatimModuleSyntax": true,
+    "moduleDetection": "force",
+    "noEmit": true,
+    "jsx": "react-jsx",
+
+    /* Linting */
+    "strict": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "erasableSyntaxOnly": true,
+    "noFallthroughCasesInSwitch": true,
+    "noUncheckedSideEffectImports": true,
+    "baseUrl": ".",
+    "paths": {
+      "@/*": ["./src/*"]
+    }
+  },
+  "include": ["src"]
+}

hub-web/tsconfig.json

@@ -0,0 +1,7 @@
+{
+  "files": [],
+  "references": [
+    { "path": "./tsconfig.app.json" },
+    { "path": "./tsconfig.node.json" }
+  ]
+}

hub-web/tsconfig.node.json

@@ -0,0 +1,26 @@
+{
+  "compilerOptions": {
+    "tsBuildInfoFile": "./node_modules/.tmp/tsconfig.node.tsbuildinfo",
+    "target": "ES2023",
+    "lib": ["ES2023"],
+    "module": "ESNext",
+    "types": ["node"],
+    "skipLibCheck": true,
+
+    /* Bundler mode */
+    "moduleResolution": "bundler",
+    "allowImportingTsExtensions": true,
+    "verbatimModuleSyntax": true,
+    "moduleDetection": "force",
+    "noEmit": true,
+
+    /* Linting */
+    "strict": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "erasableSyntaxOnly": true,
+    "noFallthroughCasesInSwitch": true,
+    "noUncheckedSideEffectImports": true
+  },
+  "include": ["vite.config.ts"]
+}

hub-web/vite.config.ts

@@ -0,0 +1,21 @@
+import { defineConfig } from 'vite'
+import react from '@vitejs/plugin-react'
+import tailwindcss from '@tailwindcss/vite'
+import path from 'path'
+
+export default defineConfig({
+  plugins: [react(), tailwindcss()],
+  resolve: {
+    alias: {
+      '@': path.resolve(__dirname, './src'),
+    },
+  },
+  server: {
+    proxy: {
+      '/v1': 'http://localhost:8000',
+      '/auth': 'http://localhost:8000',
+      '/health': 'http://localhost:8000',
+      '/gpu': 'http://localhost:8000',
+    },
+  },
+})