Add SVG icons and TypeScript configuration files

- Introduced a new favicon.svg file for the application.
- Added icons.svg containing various SVG symbols for UI components.
- Created tsconfig.app.json for frontend TypeScript configuration with ES2023 target and bundler mode.
- Established tsconfig.json to reference app and node configurations.
- Implemented tsconfig.node.json for Node.js specific TypeScript settings.

docs/design_handoff_brainwave/BrainWave.html

@@ -0,0 +1,35 @@
+<!doctype html>
+<html lang="en">
+<head>
+  <meta charset="utf-8" />
+  <meta name="viewport" content="width=device-width,initial-scale=1" />
+  <title>BrainWave — Practice Exam</title>
+
+  <!-- Fonts -->
+  <link rel="preconnect" href="https://fonts.googleapis.com" />
+  <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
+  <link
+    href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Fraunces:ital,wght@0,400;0,500;1,400&family=JetBrains+Mono:wght@400;500&display=swap"
+    rel="stylesheet"
+  />
+
+  <!-- KaTeX -->
+  <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/katex@0.16.11/dist/katex.min.css" integrity="sha384-nB0miv6/jRmo5UMMR1wu3Gz6NLsoTkbqJghGIsx//Rlm+ZU03BU6SQNC66uf4l5+" crossorigin="anonymous" />
+  <script defer src="https://cdn.jsdelivr.net/npm/katex@0.16.11/dist/katex.min.js" integrity="sha384-7zkQWkzuo3B5mTepMUcHkMB5jZaolc2xDwL6VFqjFALcbeS9Ggm/Yr2r3Dy4lfFg" crossorigin="anonymous"></script>
+
+  <link rel="stylesheet" href="styles.css" />
+
+  <!-- React + Babel -->
+  <script src="https://unpkg.com/react@18.3.1/umd/react.development.js" integrity="sha384-hD6/rw4ppMLGNu3tX5cjIb+uRZ7UkRJ6BPkLpg4hAu/6onKUg4lLsHAs9EBPT82L" crossorigin="anonymous"></script>
+  <script src="https://unpkg.com/react-dom@18.3.1/umd/react-dom.development.js" integrity="sha384-u6aeetuaXnQ38mYT8rp6sbXaQe3NL9t+IBXmnYxwkUI2Hw4bsp2Wvmx4yRQF1uAm" crossorigin="anonymous"></script>
+  <script src="https://unpkg.com/@babel/standalone@7.29.0/babel.min.js" integrity="sha384-m08KidiNqLdpJqLq95G/LEi8Qvjl/xUYll3QILypMoQ65QorJ9Lvtp2RXYGBFj1y" crossorigin="anonymous"></script>
+</head>
+<body>
+  <div id="root"></div>
+
+  <script src="app/utils.js"></script>
+  <script type="text/babel" data-presets="react" src="app/questions.jsx"></script>
+  <script type="text/babel" data-presets="react" src="app/screens.jsx"></script>
+  <script type="text/babel" data-presets="react" src="app/app.jsx"></script>
+</body>
+</html>