🎉 Initial commit: QQuiz - 智能刷题与题库管理平台

## 功能特性

✅ **核心功能**
- 多文件上传与智能去重（基于 content_hash）
- 异步文档解析（支持 TXT/PDF/DOCX/XLSX）
- AI 智能题目提取与评分（OpenAI/Anthropic/Qwen）
- 断点续做与进度管理
- 自动错题本收集

✅ **技术栈**
- Backend: FastAPI + SQLAlchemy 2.0 + PostgreSQL
- Frontend: React 18 + Vite + Tailwind CSS
- Deployment: Docker Compose

✅ **项目结构**
- 53 个文件
- 完整的前后端分离架构
- Docker/源码双模部署支持

🚀 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

frontend/src/App.jsx

@@ -0,0 +1,124 @@
+import React from 'react'
+import { BrowserRouter as Router, Routes, Route, Navigate } from 'react-router-dom'
+import { Toaster } from 'react-hot-toast'
+import { AuthProvider } from './context/AuthContext'
+import { ProtectedRoute } from './components/ProtectedRoute'
+
+// Auth Pages
+import Login from './pages/Login'
+import Register from './pages/Register'
+
+// Main Pages
+import Dashboard from './pages/Dashboard'
+import ExamList from './pages/ExamList'
+import ExamDetail from './pages/ExamDetail'
+import QuizPlayer from './pages/QuizPlayer'
+import MistakeList from './pages/MistakeList'
+
+// Admin Pages
+import AdminSettings from './pages/AdminSettings'
+
+function App() {
+  return (
+    <Router>
+      <AuthProvider>
+        <div className="App">
+          <Toaster
+            position="top-right"
+            toastOptions={{
+              duration: 3000,
+              style: {
+                background: '#363636',
+                color: '#fff',
+              },
+              success: {
+                duration: 3000,
+                iconTheme: {
+                  primary: '#10b981',
+                  secondary: '#fff',
+                },
+              },
+              error: {
+                duration: 4000,
+                iconTheme: {
+                  primary: '#ef4444',
+                  secondary: '#fff',
+                },
+              },
+            }}
+          />
+
+          <Routes>
+            {/* Public Routes */}
+            <Route path="/login" element={<Login />} />
+            <Route path="/register" element={<Register />} />
+
+            {/* Protected Routes */}
+            <Route
+              path="/dashboard"
+              element={
+                <ProtectedRoute>
+                  <Dashboard />
+                </ProtectedRoute>
+              }
+            />
+
+            <Route
+              path="/exams"
+              element={
+                <ProtectedRoute>
+                  <ExamList />
+                </ProtectedRoute>
+              }
+            />
+
+            <Route
+              path="/exams/:examId"
+              element={
+                <ProtectedRoute>
+                  <ExamDetail />
+                </ProtectedRoute>
+              }
+            />
+
+            <Route
+              path="/quiz/:examId"
+              element={
+                <ProtectedRoute>
+                  <QuizPlayer />
+                </ProtectedRoute>
+              }
+            />
+
+            <Route
+              path="/mistakes"
+              element={
+                <ProtectedRoute>
+                  <MistakeList />
+                </ProtectedRoute>
+              }
+            />
+
+            {/* Admin Only Routes */}
+            <Route
+              path="/admin/settings"
+              element={
+                <ProtectedRoute adminOnly>
+                  <AdminSettings />
+                </ProtectedRoute>
+              }
+            />
+
+            {/* Default Route */}
+            <Route path="/" element={<Navigate to="/dashboard" replace />} />
+
+            {/* 404 */}
+            <Route path="*" element={<Navigate to="/dashboard" replace />} />
+          </Routes>
+        </div>
+      </AuthProvider>
+    </Router>
+  )
+}
+
+export default App