feat: P0前端页面完善 — InstanceDetail/RedisDetail/TicketCreate/TicketDetail

- InstanceDetailPage: 概览/表管理/SQL查询/用户权限/慢查询/进程列表 6个Tab
- RedisDetailPage: 键管理/监控信息/命令行/性能分析 4个Tab + 新增键弹框
- TicketCreatePage: 工单创建向导(选择实例/填写SQL/审核规则检查)
- TicketDetailPage: 工单详情+审批/拒绝/执行/回滚操作
- App.tsx 路由注册: instances/:id, redis/:id, tickets/create, tickets/:id
- API方法名对齐: listDatabases/listTables/listUsers
- 前端构建零错误, 后端202测试通过

frontend/src/App.tsx

@@ -16,6 +16,10 @@ import AutoTaskPage from '@/pages/AutoTaskPage';
 import SettingsPage from '@/pages/SettingsPage';
 import AuditLogsPage from '@/pages/AuditLogsPage';
 import DataDictionaryPage from '@/pages/DataDictionaryPage';
+import InstanceDetailPage from '@/pages/InstanceDetailPage';
+import RedisDetailPage from '@/pages/RedisDetailPage';
+import TicketCreatePage from '@/pages/TicketCreatePage';
+import TicketDetailPage from '@/pages/TicketDetailPage';
 
 // 路由守卫：未登录跳转登录页，无权限跳转仪表盘
 function RouteGuard() {
@@ -52,8 +56,12 @@ function AppRoutes() {
           <Route index element={<Navigate to="/dashboard" replace />} />
           <Route path="dashboard" element={<Dashboard />} />
           <Route path="instances" element={<InstancePage />} />
+          <Route path="instances/:id" element={<InstanceDetailPage />} />
+          <Route path="redis/:id" element={<RedisDetailPage />} />
           <Route path="data-dictionary" element={<DataDictionaryPage />} />
           <Route path="tickets" element={<TicketsPage />} />
+          <Route path="tickets/create" element={<TicketCreatePage />} />
+          <Route path="tickets/:id" element={<TicketDetailPage />} />
           <Route path="queries" element={<QueriesPage />} />
           <Route path="roles" element={<RolesPage />} />
           <Route path="users" element={<UsersPage />} />