feat: 新增客户管理全模块功能

实现客户信息、客户部门、客户账号三个子模块的完整CRUD，包含：
1. 数据库实体、DTO、控制器、服务层代码
2. RBAC权限映射与菜单种子数据扩展
3. 前端路由与API封装
4. 数据权限隔离与鉴权逻辑
5. 配套工具脚本与测试验证清单

server/src/controller/customer.controller.ts

@@ -0,0 +1,54 @@
+import { Controller, Get, Post, Put, Del, Inject, Query, Body, Param } from "@midwayjs/core";
+import { Context } from "@midwayjs/koa";
+import { CustomerService } from "../service/customer.service";
+
+@Controller("/api/customers")
+export class CustomerController {
+	@Inject()
+	ctx!: Context;
+
+	@Inject()
+	customerService!: CustomerService;
+
+	@Get("/")
+	async list(@Query() query: any) {
+		const result = await this.customerService.list(query, this.ctx);
+		return result;
+	}
+
+	@Get("/options/all")
+	async getSimpleList() {
+		const result = await this.customerService.getSimpleList(this.ctx);
+		return result;
+	}
+
+	@Get("/:id")
+	async detail(@Param("id") id: string) {
+		const result = await this.customerService.detail(Number(id), this.ctx);
+		return result;
+	}
+
+	@Post("/")
+	async create(@Body() body: any) {
+		const result = await this.customerService.create(body, this.ctx);
+		return result;
+	}
+
+	@Put("/:id")
+	async update(@Param("id") id: string, @Body() body: any) {
+		const result = await this.customerService.update(Number(id), body, this.ctx);
+		return result;
+	}
+
+	@Del("/:id")
+	async delete(@Param("id") id: string) {
+		const result = await this.customerService.delete(Number(id), this.ctx);
+		return result;
+	}
+
+	@Put("/:id/status")
+	async updateStatus(@Param("id") id: string, @Body() body: { status: number }) {
+		const result = await this.customerService.updateStatus(Number(id), body.status, this.ctx);
+		return result;
+	}
+}