feat(frontend): introduced a working frontend prototype

7project/frontend/src/App.tsx

@@ -1,39 +1,27 @@
-import { useState } from 'react'
-import reactLogo from './assets/react.svg'
-import viteLogo from '/vite.svg'
-import './App.css'
-import { BACKEND_URL } from './config'
+import { useEffect, useState } from 'react';
+import './App.css';
+import LoginRegisterPage from './pages/LoginRegisterPage';
+import Dashboard from './pages/Dashboard';
+import { logout } from './api';
 
 function App() {
-  const [count, setCount] = useState(0)
+  const [hasToken, setHasToken] = useState<boolean>(!!localStorage.getItem('token'));
+
+  useEffect(() => {
+    const onStorage = (e: StorageEvent) => {
+      if (e.key === 'token') setHasToken(!!e.newValue);
+    };
+    window.addEventListener('storage', onStorage);
+    return () => window.removeEventListener('storage', onStorage);
+  }, []);
+
+  if (!hasToken) {
+    return <LoginRegisterPage onLoggedIn={() => setHasToken(true)} />;
+  }
 
   return (
-    <>
-      <div>
-        <a href="https://vite.dev" target="_blank">
-          <img src={viteLogo} className="logo" alt="Vite logo" />
-        </a>
-        <a href="https://react.dev" target="_blank">
-          <img src={reactLogo} className="logo react" alt="React logo" />
-        </a>
-      </div>
-      <h1>Vite + React</h1>
-      <div className="card">
-        <button onClick={() => setCount((count) => count + 1)}>
-          count is {count}
-        </button>
-        <p>
-          Edit <code>src/App.tsx</code> and save to test HMR
-        </p>
-        <p style={{ fontSize: 12, color: '#888' }}>
-          Backend URL: <code>{BACKEND_URL || '(not configured)'}</code>
-        </p>
-      </div>
-      <p className="read-the-docs">
-        Click on the Vite and React logos to learn more
-      </p>
-    </>
-  )
+    <Dashboard onLogout={() => { logout(); setHasToken(false); }} />
+  );
 }
 
-export default App
+export default App;