initial commit

frontend/src/App.tsx

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+import { Routes, Route } from 'react-router-dom'
+import Layout from '@/components/Layout'
+import HomePage from '@/pages/HomePage'
+import DashboardPage from '@/pages/DashboardPage'
+import ProtectedRoute from '@/components/ProtectedRoute'
+
+function App() {
+  return (
+    <Routes>
+      <Route
+        path="/"
+        element={
+          <Layout>
+            <HomePage />
+          </Layout>
+        }
+      />
+      <Route
+        path="/dashboard"
+        element={
+          <ProtectedRoute>
+            <DashboardPage />
+          </ProtectedRoute>
+        }
+      />
+    </Routes>
+  )
+}
+
+export default App

frontend/src/components/Layout.tsx

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+import type { ReactNode } from 'react'
+import Navbar from './Navbar'
+
+interface LayoutProps {
+  children: ReactNode
+}
+
+export default function Layout({ children }: LayoutProps) {
+  return (
+    <div className="flex min-h-screen flex-col">
+      <Navbar />
+      <main className="flex-1">
+        <div className="mx-auto max-w-7xl px-4 py-8 sm:px-6 lg:px-8">
+          {children}
+        </div>
+      </main>
+      <footer className="border-t border-gray-200 bg-white py-6">
+        <div className="mx-auto max-w-7xl px-4 sm:px-6 lg:px-8">
+          <p className="text-center text-sm text-gray-500">
+            &copy; {new Date().getFullYear()} Keycloak Auth App. All rights
+            reserved.
+          </p>
+        </div>
+      </footer>
+    </div>
+  )
+}

frontend/src/components/Navbar.tsx

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+import { Link } from 'react-router-dom'
+import { useAuth } from '@/hooks'
+
+export default function Navbar() {
+  const { user, isAuthenticated, login, logout } = useAuth()
+
+  return (
+    <nav className="border-b border-gray-200 bg-white shadow-sm">
+      <div className="mx-auto max-w-7xl px-4 sm:px-6 lg:px-8">
+        <div className="flex h-16 items-center justify-between">
+          {/* Logo / Brand */}
+          <div className="flex items-center">
+            <Link
+              to="/"
+              className="flex items-center gap-2 text-xl font-bold text-primary-600 hover:text-primary-700"
+            >
+              <svg
+                className="h-8 w-8"
+                fill="none"
+                viewBox="0 0 24 24"
+                stroke="currentColor"
+                strokeWidth={2}
+              >
+                <path
+                  strokeLinecap="round"
+                  strokeLinejoin="round"
+                  d="M12 15v2m-6 4h12a2 2 0 002-2v-6a2 2 0 00-2-2H6a2 2 0 00-2 2v6a2 2 0 002 2zm10-10V7a4 4 0 00-8 0v4h8z"
+                />
+              </svg>
+              <span>Auth App</span>
+            </Link>
+          </div>
+
+          {/* Navigation Links */}
+          <div className="flex items-center gap-4">
+            {isAuthenticated ? (
+              <>
+                <Link
+                  to="/dashboard"
+                  className="rounded-md px-3 py-2 text-sm font-medium text-gray-700 hover:bg-gray-100 hover:text-gray-900"
+                >
+                  Dashboard
+                </Link>
+                <div className="flex items-center gap-3">
+                  <span className="text-sm text-gray-600">
+                    Hello,{' '}
+                    <span className="font-medium text-gray-900">
+                      {user?.full_name || user?.preferred_username}
+                    </span>
+                  </span>
+                  <button
+                    onClick={logout}
+                    className="rounded-md bg-gray-100 px-4 py-2 text-sm font-medium text-gray-700 transition-colors hover:bg-gray-200"
+                  >
+                    Logout
+                  </button>
+                </div>
+              </>
+            ) : (
+              <button
+                onClick={login}
+                className="rounded-md bg-primary-600 px-4 py-2 text-sm font-medium text-white transition-colors hover:bg-primary-700"
+              >
+                Login
+              </button>
+            )}
+          </div>
+        </div>
+      </div>
+    </nav>
+  )
+}

frontend/src/components/ProtectedRoute.tsx

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+import type { ReactNode } from 'react'
+import { Navigate } from 'react-router-dom'
+import { useAuth } from '@/hooks'
+
+interface ProtectedRouteProps {
+  children: ReactNode
+}
+
+export default function ProtectedRoute({ children }: ProtectedRouteProps) {
+  const { isAuthenticated, isLoading } = useAuth()
+
+  if (isLoading) {
+    return (
+      <div className="flex min-h-[60vh] items-center justify-center">
+        <div className="flex flex-col items-center gap-4">
+          <div className="h-12 w-12 animate-spin rounded-full border-4 border-primary-200 border-t-primary-600" />
+          <p className="text-gray-600">Loading...</p>
+        </div>
+      </div>
+    )
+  }
+
+  if (!isAuthenticated) {
+    return <Navigate to="/" replace />
+  }
+
+  return <>{children}</>
+}

frontend/src/components/index.ts

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+export { default as Layout } from './Layout'
+export { default as Navbar } from './Navbar'
+export { default as ProtectedRoute } from './ProtectedRoute'

frontend/src/context/AuthContext.tsx

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+import {
+  createContext,
+  useState,
+  useEffect,
+  useCallback,
+  type ReactNode,
+} from 'react'
+import type { User, AuthContextType } from '@/types'
+import { authService } from '@/services'
+
+export const AuthContext = createContext<AuthContextType | undefined>(undefined)
+
+interface AuthProviderProps {
+  children: ReactNode
+}
+
+export function AuthProvider({ children }: AuthProviderProps) {
+  const [user, setUser] = useState<User | null>(null)
+  const [isLoading, setIsLoading] = useState(true)
+
+  const refreshUser = useCallback(async () => {
+    try {
+      setIsLoading(true)
+      const currentUser = await authService.getCurrentUser()
+      setUser(currentUser)
+    } catch (error) {
+      console.error('Failed to refresh user:', error)
+      setUser(null)
+    } finally {
+      setIsLoading(false)
+    }
+  }, [])
+
+  const login = useCallback(() => {
+    authService.login()
+  }, [])
+
+  const logout = useCallback(async () => {
+    try {
+      await authService.logout()
+      setUser(null)
+    } catch (error) {
+      console.error('Logout failed:', error)
+      // Still clear user on frontend even if backend logout fails
+      setUser(null)
+    }
+  }, [])
+
+  // Check authentication status on mount
+  useEffect(() => {
+    refreshUser()
+  }, [refreshUser])
+
+  const value: AuthContextType = {
+    user,
+    isLoading,
+    isAuthenticated: !!user,
+    login,
+    logout,
+    refreshUser,
+  }
+
+  return <AuthContext.Provider value={value}>{children}</AuthContext.Provider>
+}

frontend/src/context/index.ts

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+export { AuthContext, AuthProvider } from './AuthContext'

frontend/src/hooks/index.ts

@@ -0,0 +1 @@
+export { useAuth } from './useAuth'

frontend/src/hooks/useAuth.ts

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+import { useContext } from 'react'
+import { AuthContext } from '@/context'
+import type { AuthContextType } from '@/types'
+
+export function useAuth(): AuthContextType {
+  const context = useContext(AuthContext)
+  
+  if (context === undefined) {
+    throw new Error('useAuth must be used within an AuthProvider')
+  }
+  
+  return context
+}

frontend/src/index.css

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+@tailwind base;
+@tailwind components;
+@tailwind utilities;
+
+body {
+  @apply bg-gray-50 text-gray-900 antialiased;
+}

frontend/src/main.tsx

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+import { StrictMode } from 'react'
+import { createRoot } from 'react-dom/client'
+import { BrowserRouter } from 'react-router-dom'
+import App from './App'
+import { AuthProvider } from '@/context/AuthContext'
+import './index.css'
+
+createRoot(document.getElementById('root')!).render(
+  <StrictMode>
+    <BrowserRouter>
+      <AuthProvider>
+        <App />
+      </AuthProvider>
+    </BrowserRouter>
+  </StrictMode>,
+)

frontend/src/pages/DashboardPage.tsx

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+import { useAuth } from '@/hooks'
+
+// Icons as components for cleaner code
+const DataServicesIcon = () => (
+  <svg className="w-16 h-16" viewBox="0 0 64 64" fill="none" stroke="currentColor" strokeWidth="2">
+    <rect x="12" y="8" width="40" height="48" rx="2" />
+    <line x1="20" y1="20" x2="44" y2="20" />
+    <line x1="20" y1="28" x2="44" y2="28" />
+    <line x1="20" y1="36" x2="44" y2="36" />
+    <line x1="20" y1="44" x2="36" y2="44" />
+    <rect x="36" y="40" width="12" height="12" rx="1" />
+    <line x1="40" y1="44" x2="44" y2="44" />
+    <line x1="40" y1="48" x2="44" y2="48" />
+  </svg>
+)
+
+const IntegrationIcon = () => (
+  <svg className="w-16 h-16" viewBox="0 0 64 64" fill="none" stroke="currentColor" strokeWidth="2">
+    <rect x="8" y="16" width="20" height="14" rx="2" />
+    <rect x="36" y="16" width="20" height="14" rx="2" />
+    <rect x="22" y="38" width="20" height="14" rx="2" />
+    <line x1="18" y1="30" x2="18" y2="38" />
+    <line x1="18" y1="38" x2="32" y2="38" />
+    <line x1="46" y1="30" x2="46" y2="38" />
+    <line x1="46" y1="38" x2="32" y2="38" />
+  </svg>
+)
+
+const IntelligenceIcon = () => (
+  <svg className="w-16 h-16" viewBox="0 0 64 64" fill="none" stroke="currentColor" strokeWidth="2">
+    <circle cx="28" cy="28" r="14" />
+    <line x1="38" y1="38" x2="52" y2="52" strokeWidth="4" strokeLinecap="round" />
+    <path d="M22 28 L26 32 L34 24" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round" />
+  </svg>
+)
+
+const UserExperienceIcon = () => (
+  <svg className="w-16 h-16" viewBox="0 0 64 64" fill="none" stroke="currentColor" strokeWidth="2">
+    <circle cx="32" cy="20" r="8" />
+    <circle cx="16" cy="36" r="4" />
+    <circle cx="48" cy="36" r="4" />
+    <circle cx="24" cy="52" r="4" />
+    <circle cx="40" cy="52" r="4" />
+    <line x1="32" y1="28" x2="32" y2="36" />
+    <line x1="32" y1="36" x2="16" y2="36" />
+    <line x1="32" y1="36" x2="48" y2="36" />
+    <line x1="20" y1="40" x2="24" y2="48" />
+    <line x1="44" y1="40" x2="40" y2="48" />
+  </svg>
+)
+
+const ManagementIcon = () => (
+  <svg className="w-16 h-16" viewBox="0 0 64 64" fill="none" stroke="currentColor" strokeWidth="2">
+    <circle cx="32" cy="32" r="12" />
+    <path d="M32 16 L32 20" />
+    <path d="M32 44 L32 48" />
+    <path d="M16 32 L20 32" />
+    <path d="M44 32 L48 32" />
+    <path d="M20.7 20.7 L23.5 23.5" />
+    <path d="M40.5 40.5 L43.3 43.3" />
+    <path d="M20.7 43.3 L23.5 40.5" />
+    <path d="M40.5 23.5 L43.3 20.7" />
+    <rect x="26" y="28" width="12" height="10" rx="1" />
+    <path d="M29 28 L29 26 L35 26 L35 28" />
+    <line x1="29" y1="32" x2="35" y2="32" />
+  </svg>
+)
+
+const TrustworthinessIcon = () => (
+  <svg className="w-16 h-16" viewBox="0 0 64 64" fill="none" stroke="currentColor" strokeWidth="2">
+    <path d="M12 36 C12 36 20 28 32 36 C44 44 52 36 52 36" strokeLinecap="round" />
+    <path d="M12 36 L24 48 L32 36" strokeLinecap="round" strokeLinejoin="round" />
+    <path d="M52 36 L40 48 L32 36" strokeLinecap="round" strokeLinejoin="round" />
+  </svg>
+)
+
+export default function DashboardPage() {
+  const { user, logout } = useAuth()
+
+  return (
+    <div className="min-h-screen bg-white">
+      {/* Header */}
+      <header className="py-6 text-center">
+        <h1 className="text-3xl font-semibold text-teal-700">
+          Digital Twin Requirements Tool
+        </h1>
+      </header>
+
+      {/* Top Bar */}
+      <div className="border-y border-gray-200 py-3 px-8">
+        <div className="flex items-center justify-between max-w-7xl mx-auto">
+          {/* Breadcrumb */}
+          <div className="text-sm">
+            <span className="text-gray-600">Projects</span>
+            <span className="mx-2 text-gray-400">»</span>
+            <span className="font-semibold text-gray-900">PeTWIN</span>
+          </div>
+
+          {/* Language Toggle */}
+          <div className="flex items-center gap-2 text-sm text-gray-600">
+            <span>English</span>
+            <div className="relative inline-flex h-5 w-10 items-center rounded-full bg-gray-300">
+              <span className="inline-block h-4 w-4 transform rounded-full bg-white shadow-sm translate-x-0.5" />
+            </div>
+            <span>Portuguese</span>
+          </div>
+
+          {/* Admin Panel Button */}
+          <button className="px-4 py-1.5 border border-gray-400 rounded text-sm font-medium text-gray-700 hover:bg-gray-50">
+            Admin Panel
+          </button>
+
+          {/* User Info */}
+          <div className="flex items-center gap-3">
+            <div className="flex items-center gap-2">
+              <svg className="w-5 h-5 text-gray-600" fill="currentColor" viewBox="0 0 20 20">
+                <path fillRule="evenodd" d="M10 9a3 3 0 100-6 3 3 0 000 6zm-7 9a7 7 0 1114 0H3z" clipRule="evenodd" />
+              </svg>
+              <span className="text-sm text-gray-700">
+                {user?.full_name || user?.preferred_username || 'User'}{' '}
+                <span className="text-gray-500">(admin)</span>
+              </span>
+            </div>
+            <button
+              onClick={logout}
+              className="px-3 py-1 border border-gray-400 rounded text-sm text-gray-700 hover:bg-gray-50"
+            >
+              Logout
+            </button>
+          </div>
+        </div>
+      </div>
+
+      {/* Main Content */}
+      <div className="max-w-7xl mx-auto px-8 py-8">
+        <div className="flex gap-12">
+          {/* Left Sidebar */}
+          <div className="w-64 flex-shrink-0">
+            {/* Requirements Search */}
+            <div className="mb-8">
+              <h2 className="text-lg font-bold text-gray-800 mb-1">Requirements Search</h2>
+              <p className="text-sm text-teal-600">
+                Search for specific elements by name or symbol.
+              </p>
+            </div>
+
+            {/* Create a Requirement */}
+            <div className="mb-8">
+              <h2 className="text-lg font-bold text-gray-800 mb-1">Create a Requirement</h2>
+              <p className="text-sm text-teal-600">
+                Register a new Requirement.
+              </p>
+            </div>
+
+            {/* Last Viewed Requirement */}
+            <div className="mb-8">
+              <h2 className="text-lg font-bold text-gray-800 mb-1">Last Viewed Requirement:</h2>
+              <p className="text-sm text-gray-600 mb-1">No requirement accessed yet</p>
+              <a href="#" className="text-sm text-teal-600 hover:underline">
+                View More
+              </a>
+            </div>
+
+            {/* My Requirements */}
+            <div className="mb-8">
+              <h2 className="text-lg font-bold text-gray-800 mb-1">My Requirements</h2>
+              <p className="text-sm text-teal-600">
+                View your requirements and their properties.
+              </p>
+            </div>
+
+            {/* Requirement Report */}
+            <div className="mb-8">
+              <h2 className="text-lg font-bold text-gray-800 mb-1">Requirement Report</h2>
+              <p className="text-sm text-teal-600">
+                Generate the current status of this projects requirements in PDF format
+              </p>
+            </div>
+          </div>
+
+          {/* Right Content - Quick Search Filters */}
+          <div className="flex-1">
+            <h2 className="text-xl font-semibold text-gray-700 mb-6 text-center">
+              Quick Search Filters
+            </h2>
+
+            {/* Grid Layout matching the screenshot */}
+            <div className="grid grid-cols-4 gap-0 max-w-2xl mx-auto">
+              {/* Row 1 */}
+              {/* Data Services - spans 2 rows */}
+              <div className="row-span-2 bg-blue-200 border border-blue-300 flex flex-col items-center justify-center p-4 cursor-pointer hover:bg-blue-300 transition-colors min-h-[200px]">
+                <div className="text-blue-800">
+                  <DataServicesIcon />
+                </div>
+                <span className="mt-3 text-sm font-semibold text-blue-900">Data Services</span>
+              </div>
+
+              {/* Integration - 1 row */}
+              <div className="bg-amber-200 border border-amber-300 flex flex-col items-center justify-center p-4 cursor-pointer hover:bg-amber-300 transition-colors min-h-[100px]">
+                <div className="text-amber-800">
+                  <IntegrationIcon />
+                </div>
+                <span className="mt-2 text-sm font-semibold text-amber-900">Integration</span>
+              </div>
+
+              {/* Intelligence - spans 2 rows */}
+              <div className="row-span-2 bg-purple-200 border border-purple-300 flex flex-col items-center justify-center p-4 cursor-pointer hover:bg-purple-300 transition-colors min-h-[200px]">
+                <div className="text-purple-800">
+                  <IntelligenceIcon />
+                </div>
+                <span className="mt-3 text-sm font-semibold text-purple-900">Intelligence</span>
+              </div>
+
+              {/* User Experience - spans 2 rows */}
+              <div className="row-span-2 bg-green-200 border border-green-300 flex flex-col items-center justify-center p-4 cursor-pointer hover:bg-green-300 transition-colors min-h-[200px]">
+                <div className="text-green-800">
+                  <UserExperienceIcon />
+                </div>
+                <span className="mt-3 text-sm font-semibold text-green-900">User Experience</span>
+              </div>
+
+              {/* Row 2 - Management and Trustworthiness */}
+              {/* Management - 1 row, spans 1 col */}
+              <div className="bg-red-200 border border-red-300 flex flex-col items-center justify-center p-4 cursor-pointer hover:bg-red-300 transition-colors min-h-[100px]">
+                <div className="text-red-800">
+                  <ManagementIcon />
+                </div>
+                <span className="mt-2 text-sm font-semibold text-red-900">Management</span>
+              </div>
+
+              {/* Trustworthiness - 1 row */}
+              <div className="bg-green-100 border border-green-300 flex flex-col items-center justify-center p-4 cursor-pointer hover:bg-green-200 transition-colors min-h-[100px]">
+                <div className="text-red-400">
+                  <TrustworthinessIcon />
+                </div>
+                <span className="mt-2 text-sm font-semibold text-red-600">Trustworthiness</span>
+              </div>
+            </div>
+          </div>
+        </div>
+      </div>
+    </div>
+  )
+}
+

frontend/src/pages/HomePage.tsx

@@ -0,0 +1,151 @@
+import { useAuth } from '@/hooks'
+
+export default function HomePage() {
+  const { isAuthenticated, login, isLoading } = useAuth()
+
+  if (isLoading) {
+    return (
+      <div className="flex min-h-[60vh] items-center justify-center">
+        <div className="h-12 w-12 animate-spin rounded-full border-4 border-primary-200 border-t-primary-600" />
+      </div>
+    )
+  }
+
+  return (
+    <div className="flex min-h-[60vh] flex-col items-center justify-center">
+      <div className="text-center">
+        <h1 className="text-4xl font-bold tracking-tight text-gray-900 sm:text-5xl md:text-6xl">
+          Welcome to{' '}
+          <span className="text-primary-600">Keycloak Auth</span>
+        </h1>
+        <p className="mx-auto mt-6 max-w-2xl text-lg text-gray-600">
+          A secure authentication system powered by Keycloak and FastAPI. Login
+          with your Keycloak credentials to access protected resources.
+        </p>
+
+        {!isAuthenticated && (
+          <div className="mt-10">
+            <button
+              onClick={login}
+              className="inline-flex items-center gap-2 rounded-lg bg-primary-600 px-8 py-4 text-lg font-semibold text-white shadow-lg transition-all hover:bg-primary-700 hover:shadow-xl focus:outline-none focus:ring-4 focus:ring-primary-300"
+            >
+              <svg
+                className="h-6 w-6"
+                fill="none"
+                viewBox="0 0 24 24"
+                stroke="currentColor"
+                strokeWidth={2}
+              >
+                <path
+                  strokeLinecap="round"
+                  strokeLinejoin="round"
+                  d="M11 16l-4-4m0 0l4-4m-4 4h14m-5 4v1a3 3 0 01-3 3H6a3 3 0 01-3-3V7a3 3 0 013-3h7a3 3 0 013 3v1"
+                />
+              </svg>
+              Login with Keycloak
+            </button>
+          </div>
+        )}
+
+        {isAuthenticated && (
+          <div className="mt-10">
+            <a
+              href="/dashboard"
+              className="inline-flex items-center gap-2 rounded-lg bg-primary-600 px-8 py-4 text-lg font-semibold text-white shadow-lg transition-all hover:bg-primary-700 hover:shadow-xl focus:outline-none focus:ring-4 focus:ring-primary-300"
+            >
+              <svg
+                className="h-6 w-6"
+                fill="none"
+                viewBox="0 0 24 24"
+                stroke="currentColor"
+                strokeWidth={2}
+              >
+                <path
+                  strokeLinecap="round"
+                  strokeLinejoin="round"
+                  d="M4 6a2 2 0 012-2h2a2 2 0 012 2v2a2 2 0 01-2 2H6a2 2 0 01-2-2V6zM14 6a2 2 0 012-2h2a2 2 0 012 2v2a2 2 0 01-2 2h-2a2 2 0 01-2-2V6zM4 16a2 2 0 012-2h2a2 2 0 012 2v2a2 2 0 01-2 2H6a2 2 0 01-2-2v-2zM14 16a2 2 0 012-2h2a2 2 0 012 2v2a2 2 0 01-2 2h-2a2 2 0 01-2-2v-2z"
+                />
+              </svg>
+              Go to Dashboard
+            </a>
+          </div>
+        )}
+      </div>
+
+      {/* Features Section */}
+      <div className="mt-20 grid gap-8 sm:grid-cols-2 lg:grid-cols-3">
+        <div className="rounded-lg border border-gray-200 bg-white p-6 shadow-sm">
+          <div className="mb-4 flex h-12 w-12 items-center justify-center rounded-lg bg-primary-100">
+            <svg
+              className="h-6 w-6 text-primary-600"
+              fill="none"
+              viewBox="0 0 24 24"
+              stroke="currentColor"
+              strokeWidth={2}
+            >
+              <path
+                strokeLinecap="round"
+                strokeLinejoin="round"
+                d="M12 15v2m-6 4h12a2 2 0 002-2v-6a2 2 0 00-2-2H6a2 2 0 00-2 2v6a2 2 0 002 2zm10-10V7a4 4 0 00-8 0v4h8z"
+              />
+            </svg>
+          </div>
+          <h3 className="mb-2 text-lg font-semibold text-gray-900">
+            Secure Authentication
+          </h3>
+          <p className="text-gray-600">
+            HTTP-only cookies protect your tokens from XSS attacks.
+          </p>
+        </div>
+
+        <div className="rounded-lg border border-gray-200 bg-white p-6 shadow-sm">
+          <div className="mb-4 flex h-12 w-12 items-center justify-center rounded-lg bg-primary-100">
+            <svg
+              className="h-6 w-6 text-primary-600"
+              fill="none"
+              viewBox="0 0 24 24"
+              stroke="currentColor"
+              strokeWidth={2}
+            >
+              <path
+                strokeLinecap="round"
+                strokeLinejoin="round"
+                d="M9 12l2 2 4-4m5.618-4.016A11.955 11.955 0 0112 2.944a11.955 11.955 0 01-8.618 3.04A12.02 12.02 0 003 9c0 5.591 3.824 10.29 9 11.622 5.176-1.332 9-6.03 9-11.622 0-1.042-.133-2.052-.382-3.016z"
+              />
+            </svg>
+          </div>
+          <h3 className="mb-2 text-lg font-semibold text-gray-900">
+            Keycloak Integration
+          </h3>
+          <p className="text-gray-600">
+            Enterprise-grade identity management with Keycloak SSO.
+          </p>
+        </div>
+
+        <div className="rounded-lg border border-gray-200 bg-white p-6 shadow-sm">
+          <div className="mb-4 flex h-12 w-12 items-center justify-center rounded-lg bg-primary-100">
+            <svg
+              className="h-6 w-6 text-primary-600"
+              fill="none"
+              viewBox="0 0 24 24"
+              stroke="currentColor"
+              strokeWidth={2}
+            >
+              <path
+                strokeLinecap="round"
+                strokeLinejoin="round"
+                d="M13 10V3L4 14h7v7l9-11h-7z"
+              />
+            </svg>
+          </div>
+          <h3 className="mb-2 text-lg font-semibold text-gray-900">
+            FastAPI Backend
+          </h3>
+          <p className="text-gray-600">
+            High-performance Python backend with automatic API documentation.
+          </p>
+        </div>
+      </div>
+    </div>
+  )
+}

frontend/src/pages/index.ts

@@ -0,0 +1,2 @@
+export { default as HomePage } from './HomePage'
+export { default as DashboardPage } from './DashboardPage'

frontend/src/services/authService.ts

@@ -0,0 +1,67 @@
+import type { User } from '@/types'
+
+const API_BASE_URL = '/api'
+
+class AuthService {
+  /**
+   * Get the current authenticated user from the session cookie.
+   * Returns null if not authenticated.
+   */
+  async getCurrentUser(): Promise<User | null> {
+    try {
+      const response = await fetch(`${API_BASE_URL}/auth/me`, {
+        method: 'GET',
+        credentials: 'include',
+        headers: {
+          'Content-Type': 'application/json',
+        },
+      })
+
+      if (!response.ok) {
+        if (response.status === 401) {
+          return null
+        }
+        throw new Error(`HTTP error! status: ${response.status}`)
+      }
+
+      const user: User = await response.json()
+      return user
+    } catch (error) {
+      console.error('Failed to get current user:', error)
+      return null
+    }
+  }
+
+  /**
+   * Logout the current user by clearing the session cookie.
+   */
+  async logout(): Promise<void> {
+    try {
+      const response = await fetch(`${API_BASE_URL}/auth/logout`, {
+        method: 'POST',
+        credentials: 'include',
+        headers: {
+          'Content-Type': 'application/json',
+        },
+      })
+
+      if (!response.ok) {
+        throw new Error(`HTTP error! status: ${response.status}`)
+      }
+    } catch (error) {
+      console.error('Logout failed:', error)
+      throw error
+    }
+  }
+
+  /**
+   * Redirect to the login endpoint to initiate OAuth flow.
+   */
+  login(): void {
+    // In development with Vite proxy, we can use relative URL
+    // In production, this will be proxied by nginx
+    window.location.href = `${API_BASE_URL}/login`
+  }
+}
+
+export const authService = new AuthService()

frontend/src/services/index.ts

@@ -0,0 +1 @@
+export { authService } from './authService'

frontend/src/types/auth.ts

@@ -0,0 +1,14 @@
+export interface User {
+  preferred_username: string
+  email: string | null
+  full_name: string | null
+}
+
+export interface AuthContextType {
+  user: User | null
+  isLoading: boolean
+  isAuthenticated: boolean
+  login: () => void
+  logout: () => Promise<void>
+  refreshUser: () => Promise<void>
+}

frontend/src/types/index.ts

@@ -0,0 +1 @@
+export * from './auth'

frontend/src/vite-env.d.ts

@@ -0,0 +1,6 @@
+/// <reference types="vite/client" />
+
+declare module '*.css' {
+  const content: string
+  export default content
+}