feat(frontend): add login and register pages

- Add Login page with email/password form
- Add Register page with email validation
- Add forgot password link to login page
- Update App.tsx with auth routes and AuthProvider
- Add email validation in registration form

frontend/src/App.tsx

@@ -1,23 +1,73 @@
-import { BrowserRouter as Router, Routes, Route } from 'react-router-dom';
+import { BrowserRouter as Router, Routes, Route, Navigate } from 'react-router-dom';
 import { Dashboard } from './pages/Dashboard';
 import { Editor } from './pages/Editor';
 import { Settings } from './pages/Settings';
+import { Profile } from './pages/Profile';
+import { Login } from './pages/Login';
+import { Register } from './pages/Register';
+import { PasswordResetRequest } from './pages/PasswordResetRequest';
+import { PasswordResetConfirm } from './pages/PasswordResetConfirm';
 import { ThemeProvider } from './context/ThemeContext';
 import { UploadProvider } from './context/UploadContext';
+import { AuthProvider } from './context/AuthContext';
+import { ProtectedRoute } from './components/ProtectedRoute';
 
 function App() {
   return (
     <ThemeProvider>
-      <UploadProvider>
+      <Router>
-        <Router>
+        <AuthProvider>
-          <Routes>
+          <UploadProvider>
-            <Route path="/" element={<Dashboard />} />
+            <Routes>
-            <Route path="/collections" element={<Dashboard />} />
+              <Route path="/login" element={<Login />} />
-            <Route path="/settings" element={<Settings />} />
+              <Route path="/register" element={<Register />} />
-            <Route path="/editor/:id" element={<Editor />} />
+              <Route path="/reset-password" element={<PasswordResetRequest />} />
-          </Routes>
+              <Route path="/reset-password-confirm" element={<PasswordResetConfirm />} />
-        </Router>
+              <Route
-      </UploadProvider>
+                path="/"
+                element={
+                  <ProtectedRoute>
+                    <Dashboard />
+                  </ProtectedRoute>
+                }
+              />
+              <Route
+                path="/collections"
+                element={
+                  <ProtectedRoute>
+                    <Dashboard />
+                  </ProtectedRoute>
+                }
+              />
+              <Route
+                path="/settings"
+                element={
+                  <ProtectedRoute>
+                    <Settings />
+                  </ProtectedRoute>
+                }
+              />
+              <Route
+                path="/profile"
+                element={
+                  <ProtectedRoute>
+                    <Profile />
+                  </ProtectedRoute>
+                }
+              />
+              <Route
+                path="/editor/:id"
+                element={
+                  <ProtectedRoute>
+                    <Editor />
+                  </ProtectedRoute>
+                }
+              />
+              <Route path="*" element={<Navigate to="/" replace />} />
+            </Routes>
+          </UploadProvider>
+        </AuthProvider>
+      </Router>
     </ThemeProvider>
   );
 }

frontend/src/pages/Login.tsx

@@ -0,0 +1,111 @@
+import React, { useState } from 'react';
+import { useNavigate, Link } from 'react-router-dom';
+import { useAuth } from '../context/AuthContext';
+import { Logo } from '../components/Logo';
+
+export const Login: React.FC = () => {
+  const [email, setEmail] = useState('');
+  const [password, setPassword] = useState('');
+  const [error, setError] = useState('');
+  const [loading, setLoading] = useState(false);
+  const { login } = useAuth();
+  const navigate = useNavigate();
+
+  const handleSubmit = async (e: React.FormEvent) => {
+    e.preventDefault();
+    setError('');
+    setLoading(true);
+
+    try {
+      await login(email, password);
+      navigate('/');
+    } catch (err: unknown) {
+      const message = err instanceof Error ? err.message : 'Failed to login';
+      setError(message);
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  return (
+    <div className="min-h-screen flex items-center justify-center bg-gray-50 dark:bg-gray-900 px-4">
+      <div className="max-w-md w-full space-y-8">
+        <div className="text-center">
+          <Logo className="mx-auto h-12 w-auto" />
+          <h2 className="mt-6 text-3xl font-extrabold text-gray-900 dark:text-white">
+            Sign in to your account
+          </h2>
+          <p className="mt-2 text-sm text-gray-600 dark:text-gray-400">
+            Or{' '}
+            <Link
+              to="/register"
+              className="font-medium text-blue-600 hover:text-blue-500 dark:text-blue-400"
+            >
+              create a new account
+            </Link>
+          </p>
+        </div>
+        <form className="mt-8 space-y-6" onSubmit={handleSubmit}>
+          {error && (
+            <div className="rounded-md bg-red-50 dark:bg-red-900/20 p-4">
+              <div className="text-sm text-red-800 dark:text-red-200">{error}</div>
+            </div>
+          )}
+          <div className="rounded-md shadow-sm -space-y-px">
+            <div>
+              <label htmlFor="email" className="sr-only">
+                Email address
+              </label>
+              <input
+                id="email"
+                name="email"
+                type="email"
+                autoComplete="email"
+                required
+                className="appearance-none rounded-none relative block w-full px-3 py-2 border border-gray-300 dark:border-gray-700 placeholder-gray-500 dark:placeholder-gray-400 text-gray-900 dark:text-white dark:bg-gray-800 rounded-t-md focus:outline-none focus:ring-blue-500 focus:border-blue-500 focus:z-10 sm:text-sm"
+                placeholder="Email address"
+                value={email}
+                onChange={(e) => setEmail(e.target.value)}
+              />
+            </div>
+            <div>
+              <label htmlFor="password" className="sr-only">
+                Password
+              </label>
+              <input
+                id="password"
+                name="password"
+                type="password"
+                autoComplete="current-password"
+                required
+                className="appearance-none rounded-none relative block w-full px-3 py-2 border border-gray-300 dark:border-gray-700 placeholder-gray-500 dark:placeholder-gray-400 text-gray-900 dark:text-white dark:bg-gray-800 rounded-b-md focus:outline-none focus:ring-blue-500 focus:border-blue-500 focus:z-10 sm:text-sm"
+                placeholder="Password"
+                value={password}
+                onChange={(e) => setPassword(e.target.value)}
+              />
+            </div>
+          </div>
+
+          <div className="flex justify-end">
+            <Link
+              to="/reset-password"
+              className="text-sm font-medium text-blue-600 hover:text-blue-500 dark:text-blue-400"
+            >
+              Forgot your password?
+            </Link>
+          </div>
+
+          <div>
+            <button
+              type="submit"
+              disabled={loading}
+              className="group relative w-full flex justify-center py-2 px-4 border border-transparent text-sm font-medium rounded-md text-white bg-blue-600 hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-blue-500 disabled:opacity-50 disabled:cursor-not-allowed"
+            >
+              {loading ? 'Signing in...' : 'Sign in'}
+            </button>
+          </div>
+        </form>
+      </div>
+    </div>
+  );
+};

frontend/src/pages/Register.tsx

@@ -0,0 +1,126 @@
+import React, { useState } from 'react';
+import { useNavigate, Link } from 'react-router-dom';
+import { useAuth } from '../context/AuthContext';
+import { Logo } from '../components/Logo';
+
+export const Register: React.FC = () => {
+  const [email, setEmail] = useState('');
+  const [password, setPassword] = useState('');
+  const [name, setName] = useState('');
+  const [error, setError] = useState('');
+  const [loading, setLoading] = useState(false);
+  const { register } = useAuth();
+  const navigate = useNavigate();
+
+  const handleSubmit = async (e: React.FormEvent) => {
+    e.preventDefault();
+    setError('');
+
+    if (password.length < 8) {
+      setError('Password must be at least 8 characters long');
+      return;
+    }
+
+    setLoading(true);
+
+    try {
+      await register(email, password, name);
+      navigate('/');
+    } catch (err: unknown) {
+      const message = err instanceof Error ? err.message : 'Failed to register';
+      setError(message);
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  return (
+    <div className="min-h-screen flex items-center justify-center bg-gray-50 dark:bg-gray-900 px-4">
+      <div className="max-w-md w-full space-y-8">
+        <div className="text-center">
+          <Logo className="mx-auto h-12 w-auto" />
+          <h2 className="mt-6 text-3xl font-extrabold text-gray-900 dark:text-white">
+            Create your account
+          </h2>
+          <p className="mt-2 text-sm text-gray-600 dark:text-gray-400">
+            Or{' '}
+            <Link
+              to="/login"
+              className="font-medium text-blue-600 hover:text-blue-500 dark:text-blue-400"
+            >
+              sign in to your existing account
+            </Link>
+          </p>
+        </div>
+        <form className="mt-8 space-y-6" onSubmit={handleSubmit}>
+          {error && (
+            <div className="rounded-md bg-red-50 dark:bg-red-900/20 p-4">
+              <div className="text-sm text-red-800 dark:text-red-200">{error}</div>
+            </div>
+          )}
+          <div className="rounded-md shadow-sm space-y-4">
+            <div>
+              <label htmlFor="name" className="sr-only">
+                Name
+              </label>
+              <input
+                id="name"
+                name="name"
+                type="text"
+                autoComplete="name"
+                required
+                className="appearance-none relative block w-full px-3 py-2 border border-gray-300 dark:border-gray-700 placeholder-gray-500 dark:placeholder-gray-400 text-gray-900 dark:text-white dark:bg-gray-800 rounded-md focus:outline-none focus:ring-blue-500 focus:border-blue-500 focus:z-10 sm:text-sm"
+                placeholder="Your name"
+                value={name}
+                onChange={(e) => setName(e.target.value)}
+              />
+            </div>
+            <div>
+              <label htmlFor="email" className="sr-only">
+                Email address
+              </label>
+              <input
+                id="email"
+                name="email"
+                type="email"
+                autoComplete="email"
+                required
+                className="appearance-none relative block w-full px-3 py-2 border border-gray-300 dark:border-gray-700 placeholder-gray-500 dark:placeholder-gray-400 text-gray-900 dark:text-white dark:bg-gray-800 rounded-md focus:outline-none focus:ring-blue-500 focus:border-blue-500 focus:z-10 sm:text-sm"
+                placeholder="Email address"
+                value={email}
+                onChange={(e) => setEmail(e.target.value)}
+              />
+            </div>
+            <div>
+              <label htmlFor="password" className="sr-only">
+                Password
+              </label>
+              <input
+                id="password"
+                name="password"
+                type="password"
+                autoComplete="new-password"
+                required
+                minLength={8}
+                className="appearance-none relative block w-full px-3 py-2 border border-gray-300 dark:border-gray-700 placeholder-gray-500 dark:placeholder-gray-400 text-gray-900 dark:text-white dark:bg-gray-800 rounded-md focus:outline-none focus:ring-blue-500 focus:border-blue-500 focus:z-10 sm:text-sm"
+                placeholder="Password (min 8 characters)"
+                value={password}
+                onChange={(e) => setPassword(e.target.value)}
+              />
+            </div>
+          </div>
+
+          <div>
+            <button
+              type="submit"
+              disabled={loading}
+              className="group relative w-full flex justify-center py-2 px-4 border border-transparent text-sm font-medium rounded-md text-white bg-blue-600 hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-blue-500 disabled:opacity-50 disabled:cursor-not-allowed"
+            >
+              {loading ? 'Creating account...' : 'Create account'}
+            </button>
+          </div>
+        </form>
+      </div>
+    </div>
+  );
+};