feat: 首付分期功能实现 - 项目初始化提交

- 添加首付分期功能相关表结构和数据
- 实现首付分期策略管理
- 添加首付分期支付详情管理
- 完善项目相关功能模块
- 修复外键类型问题
- 添加相关初始化脚本和文档

ruoyi-ui/src/api/system/businessunit/index.ts

@@ -0,0 +1,63 @@
+import request from '@/utils/request';
+import { AxiosPromise } from 'axios';
+import { BusinessunitVO, BusinessunitForm, BusinessunitQuery } from '@/api/system/businessunit/types';
+
+/**
+ * 查询公司列表
+ * @param query
+ * @returns {*}
+ */
+
+export const listBusinessunit = (query?: BusinessunitQuery): AxiosPromise<BusinessunitVO[]> => {
+  return request({
+    url: '/system/businessunit/list',
+    method: 'get',
+    params: query
+  });
+};
+
+/**
+ * 查询公司详细
+ * @param id
+ */
+export const getBusinessunit = (id: string | number): AxiosPromise<BusinessunitVO> => {
+  return request({
+    url: '/system/businessunit/' + id,
+    method: 'get'
+  });
+};
+
+/**
+ * 新增公司
+ * @param data
+ */
+export const addBusinessunit = (data: BusinessunitForm) => {
+  return request({
+    url: '/system/businessunit',
+    method: 'post',
+    data: data
+  });
+};
+
+/**
+ * 修改公司
+ * @param data
+ */
+export const updateBusinessunit = (data: BusinessunitForm) => {
+  return request({
+    url: '/system/businessunit',
+    method: 'put',
+    data: data
+  });
+};
+
+/**
+ * 删除公司
+ * @param id
+ */
+export const delBusinessunit = (id: string | number | Array<string | number>) => {
+  return request({
+    url: '/system/businessunit/' + id,
+    method: 'delete'
+  });
+};