feat: 客户支持type字段，按种类过滤

src/main/java/com/example/building/controller/CustomerController.java

@@ -23,9 +23,10 @@ public class CustomerController {
     @GetMapping
     public Result<Page<Customer>> getCustomers(
             @RequestParam(required = false) String keyword,
+            @RequestParam(required = false) String type,
             @RequestParam(defaultValue = "1") Integer page,
             @RequestParam(defaultValue = "20") Integer pageSize) {
-        return Result.success(customerService.getCustomers(keyword, page, pageSize));
+        return Result.success(customerService.getCustomers(keyword, type, page, pageSize));
     }
 
     /**

src/main/java/com/example/building/entity/Customer.java

@@ -51,6 +51,11 @@ public class Customer {
      */
     private String remark;
 
+    /**
+     * 客户种类: customer=顾客, carpenter=木匠, company=装修公司
+     */
+    private String type;
+
     /**
      * 累计消费金额
      */

src/main/java/com/example/building/service/CustomerService.java

@@ -11,7 +11,7 @@ public interface CustomerService {
     /**
      * 客户列表
      */
-    Page<Customer> getCustomers(String keyword, Integer page, Integer pageSize);
+    Page<Customer> getCustomers(String keyword, String type, Integer page, Integer pageSize);
 
     /**
      * 客户详情

src/main/java/com/example/building/service/impl/CustomerServiceImpl.java

@@ -25,7 +25,7 @@ public class CustomerServiceImpl implements CustomerService {
      * 客户列表
      */
     @Override
-    public Page<Customer> getCustomers(String keyword, Integer page, Integer pageSize) {
+    public Page<Customer> getCustomers(String keyword, String type, Integer page, Integer pageSize) {
         Page<Customer> pageParam = new Page<>(page, pageSize);
         LambdaQueryWrapper<Customer> wrapper = new LambdaQueryWrapper<>();
         if (StringUtils.hasText(keyword)) {
@@ -33,7 +33,9 @@ public class CustomerServiceImpl implements CustomerService {
                     .or()
                     .like(Customer::getPhone, keyword);
         }
-        wrapper.orderByDesc(Customer::getLastLoginAt);
+        if (StringUtils.hasText(type)) {
+            wrapper.eq(Customer::getType, type);
+        }
         wrapper.orderByDesc(Customer::getLastLoginAt);
         wrapper.orderByDesc(Customer::getCreatedAt);
         return customerMapper.selectPage(pageParam, wrapper);