创建了api目录并拆分为10个功能模块文件

建立了index.ts统一导出
精简了原api.ts文件

client/mobile/api/system.ts

@@ -0,0 +1,50 @@
+import axios from 'axios';
+import type { 
+  SystemSetting, SystemSettingGroupData, 
+} from '../../share/types.ts';
+
+const API_BASE_URL = '/api';
+
+// 系统设置API
+export const SystemAPI = {
+  // 获取所有系统设置
+  getSettings: async (): Promise<SystemSettingGroupData[]> => {
+    try {
+      const response = await axios.get(`${API_BASE_URL}/settings`);
+      return response.data.data;
+    } catch (error) {
+      throw error;
+    }
+  },
+
+  // 获取指定分组的系统设置
+  getSettingsByGroup: async (group: string): Promise<SystemSetting[]> => {
+    try {
+      const response = await axios.get(`${API_BASE_URL}/settings/group/${group}`);
+      return response.data.data;
+    } catch (error) {
+      throw error;
+    }
+    
+  },
+
+  // 更新系统设置
+  updateSettings: async (settings: Partial<SystemSetting>[]): Promise<SystemSetting[]> => {
+    try {
+      const response = await axios.put(`${API_BASE_URL}/settings`, settings);
+      return response.data.data;
+    } catch (error) {
+      throw error;
+    }
+  },
+
+  // 重置系统设置
+  resetSettings: async (): Promise<SystemSetting[]> => {
+    try {
+      const response = await axios.post(`${API_BASE_URL}/settings/reset`);
+      return response.data.data;
+    } catch (error) {
+      throw error;
+    }
+  }
+};