Initial commit: X-Server Mobile enterprise tool system

- Frontend: React 18 + TypeScript + Vite + Ant Design Mobile
- Backend: PHP 8.5 + Webman 2.x + MySQL + Redis
- i18n support: Chinese, English, Russian, Spanish, French
- Approval workflow engine
- Docker development environment
- Feishu integration

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/src/pages/business-trip/list.module.css

@@ -0,0 +1,32 @@
+.list {
+  padding: 16px;
+}
+
+.tabs {
+  display: flex;
+  gap: 8px;
+  margin-bottom: 16px;
+}
+
+.tab {
+  flex: 1;
+  padding: 8px 12px;
+  border: none;
+  background: #f5f5f5;
+  border-radius: 6px;
+  font-size: 14px;
+  color: #666;
+  cursor: pointer;
+}
+
+.tab.active {
+  background: #1677ff;
+  color: #fff;
+}
+
+.empty {
+  padding: 60px 0;
+  text-align: center;
+  color: #999;
+  font-size: 14px;
+}