feat: BossAi 老板AI助手初始版本

包含功能:
- 法务参谋/经营决策/生活助理/情绪中心四大AI对话模块
- 专家咨询系统(用户选定→专家确认→咨询→回复→评价)
- 角色登录(用户/专家/管理员)+ ProtectedRoute 权限控制
- 管理后台(用户管理/专家管理/AI使用统计/专家活跃度)
- 专家工作台(待确认服务/待回复咨询/已回复咨询/服务中用户)
- 服务关系取消(用户和专家均可取消,需自己确认)
- 全页面移动端响应式适配
- 知识库RAG检索
- 对话历史(普通/保密模式)

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Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

web/src/App.tsx

@@ -0,0 +1,62 @@
+import { Routes, Route, Navigate } from 'react-router-dom'
+import { AppLayout } from '@/components/layout/AppLayout'
+import { Dashboard } from '@/pages/Dashboard'
+import { LegalAdvisor } from '@/pages/LegalAdvisor'
+import { Decisions } from '@/pages/Decisions'
+import { LifeAssistant } from '@/pages/LifeAssistant'
+import { EmotionCenter } from '@/pages/EmotionCenter'
+import { Settings } from '@/pages/Settings'
+import { KnowledgeBase } from '@/pages/KnowledgeBase'
+import { Experts } from '@/pages/Experts'
+import { WorkbenchPendingServices, WorkbenchPending, WorkbenchReplied, WorkbenchUsers } from '@/pages/workbench'
+import { ChatHistory } from '@/pages/ChatHistory'
+import { AdminStats, AdminAiUsage, AdminExpertActivity, AdminUsers, AdminExperts } from '@/pages/admin'
+import { Placeholder } from '@/pages/Placeholder'
+import { Login } from '@/pages/Login'
+import { isLoggedIn, getRole, type Role } from '@/lib/auth'
+
+/** 路由守卫:未登录跳转登录页,角色不匹配跳转各自首页 */
+function ProtectedRoute({ children, allowedRoles }: { children: React.ReactNode; allowedRoles?: Role[] }) {
+  if (!isLoggedIn()) {
+    return <Navigate to="/login" replace />
+  }
+  const currentRole = getRole()
+  if (allowedRoles && !allowedRoles.includes(currentRole)) {
+    // 角色不匹配,跳转到各自首页
+    const homeMap: Record<Role, string> = { user: '/', expert: '/workbench', admin: '/admin' }
+    return <Navigate to={homeMap[currentRole]} replace />
+  }
+  return <>{children}</>
+}
+
+export default function App() {
+  return (
+    <Routes>
+      <Route path="/login" element={<Login />} />
+      <Route element={<AppLayout />}>
+        {/* 用户页面:仅用户可访问 */}
+        <Route index element={<ProtectedRoute allowedRoles={['user']}><Dashboard /></ProtectedRoute>} />
+        <Route path="legal" element={<ProtectedRoute allowedRoles={['user']}><LegalAdvisor /></ProtectedRoute>} />
+        <Route path="decisions" element={<ProtectedRoute allowedRoles={['user']}><Decisions /></ProtectedRoute>} />
+        <Route path="life" element={<ProtectedRoute allowedRoles={['user']}><LifeAssistant /></ProtectedRoute>} />
+        <Route path="emotion" element={<ProtectedRoute allowedRoles={['user']}><EmotionCenter /></ProtectedRoute>} />
+        <Route path="knowledge" element={<ProtectedRoute allowedRoles={['user']}><KnowledgeBase /></ProtectedRoute>} />
+        <Route path="experts" element={<ProtectedRoute allowedRoles={['user']}><Experts /></ProtectedRoute>} />
+        <Route path="history" element={<ProtectedRoute allowedRoles={['user']}><ChatHistory /></ProtectedRoute>} />
+        <Route path="settings" element={<ProtectedRoute allowedRoles={['user']}><Settings /></ProtectedRoute>} />
+        {/* 专家工作台:仅专家可访问,拆分为独立页面 */}
+        <Route path="workbench" element={<ProtectedRoute allowedRoles={['expert']}><WorkbenchPendingServices /></ProtectedRoute>} />
+        <Route path="workbench/pending" element={<ProtectedRoute allowedRoles={['expert']}><WorkbenchPending /></ProtectedRoute>} />
+        <Route path="workbench/replied" element={<ProtectedRoute allowedRoles={['expert']}><WorkbenchReplied /></ProtectedRoute>} />
+        <Route path="workbench/users" element={<ProtectedRoute allowedRoles={['expert']}><WorkbenchUsers /></ProtectedRoute>} />
+        {/* 管理后台:仅管理员可访问,拆分为独立页面 */}
+        <Route path="admin" element={<ProtectedRoute allowedRoles={['admin']}><AdminStats /></ProtectedRoute>} />
+        <Route path="admin/ai-usage" element={<ProtectedRoute allowedRoles={['admin']}><AdminAiUsage /></ProtectedRoute>} />
+        <Route path="admin/expert-activity" element={<ProtectedRoute allowedRoles={['admin']}><AdminExpertActivity /></ProtectedRoute>} />
+        <Route path="admin/users" element={<ProtectedRoute allowedRoles={['admin']}><AdminUsers /></ProtectedRoute>} />
+        <Route path="admin/experts" element={<ProtectedRoute allowedRoles={['admin']}><AdminExperts /></ProtectedRoute>} />
+        <Route path="*" element={<Placeholder title="页面未找到" />} />
+      </Route>
+    </Routes>
+  )
+}