m_compan (平台)
  │
  ├── sub_group_id ──→ m_company_sub_group (平台分组)
  │
  ↓ sid
m_client (客户主表)
  │
  ├── id ←── m_client_detail.uid (客户明细, 1:1)
  │      ├── region_id ──→ m_regions (大区)
  │      ├── today_buy_num (今日购买扎数)
  │      ├── buy_count (购买频次/订单数量)
  │      └── points (积分)
  │
  ├── level_id ──→ m_level (会员等级)
  │
  ├── group_id ──→ m_group (运营分组)
  │
  ├── collage_id ──→ m_collection_points (站点)
  │
  ├── pre_sales_group_id ──→ m_admins_region_relations
  │                              │
  │                              └── pid ──→ m_admins (管理员)
  │
  ├── shareid ──→ m_client (自关联, 推荐人)
  │
  ├── id ←── m_client_crm_trace.uid (跟进记录, 1:N)
  │
  ├── id ←── m_client_urgent_mobile_record.user_id (紧急联系人, 1:N)
  │
  ├── id ←── m_member_level_history.uid (会员等级历史, 1:N)
  │
  └── id ←── m_order.uid (订单, 1:N)

1. 若传入 time_type，则忽略 start_time/end_time
2. 若未传入 time_type，但传入了 start_time 或 end_time，则使用自定义时间范围
3. 若都未传入，则返回全部累计数据

{
  "code": 200,
  "message": "获取成功",
  "data": {
    "order_goods_number": 120,
    "order_count": 35,
    "order_amount": "8256.23",
    "time_type": "month",
    "start_time": "2026-08-01",
    "end_time": "2026-08-31"
  }
}