feat(printer): 添加打印任务分页查询和重新打印功能- 引入 PageHelper 和 PageInfo 实现分页查询

- 新增 PrintTaskMapper 接口方法 queryByCondition 和 updateStatus
- 扩展 PrintTaskEntity 实体类，新增 mpId 和 paper 字段- 在 PrinterController 中新增 /task/page 和 /task/reprint/{id} 接口- 更新 PrintTaskMapper.xml，添加查询和更新状态的 SQL语句- 优化打印任务插入逻辑，补充 mpId 和 paper 字段赋值

src/main/java/com/ycwl/basic/controller/pc/PrinterController.java

@@ -1,6 +1,11 @@
 package com.ycwl.basic.controller.pc;
 
+import com.github.pagehelper.PageHelper;
+import com.github.pagehelper.PageInfo;
+import com.ycwl.basic.mapper.PrintTaskMapper;
+import com.ycwl.basic.model.pc.printer.entity.PrintTaskEntity;
 import com.ycwl.basic.model.pc.printer.entity.PrinterEntity;
+import com.ycwl.basic.model.pc.printer.req.PrintTaskReqQuery;
 import com.ycwl.basic.service.printer.PrinterService;
 import com.ycwl.basic.utils.ApiResponse;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -20,6 +25,9 @@ public class PrinterController {
     @Autowired
     private PrinterService printerService;
 
+    @Autowired
+    private PrintTaskMapper printTaskMapper;
+
     // 查询列表
     @PostMapping("/list")
     public ApiResponse<List<PrinterEntity>> list(@RequestBody PrinterEntity condition) {
@@ -49,4 +57,20 @@ public class PrinterController {
     public ApiResponse<Integer> delete(@PathVariable("id") Integer id) {
         return printerService.delete(id);
     }
+
+    // 分页查询打印任务
+    @PostMapping("/task/page")
+    public ApiResponse<PageInfo<PrintTaskEntity>> taskPage(@RequestBody PrintTaskReqQuery req) {
+        PageHelper.startPage(req.getPageNum(), req.getPageSize());
+        List<PrintTaskEntity> list = printTaskMapper.queryByCondition(req.getPrinterId(), req.getStatus());
+        PageInfo<PrintTaskEntity> pageInfo = new PageInfo<>(list);
+        return ApiResponse.success(pageInfo);
+    }
+
+    // 重新打印(将状态设置为0-未开始)
+    @PostMapping("/task/reprint/{id}")
+    public ApiResponse<Integer> reprint(@PathVariable("id") Integer id) {
+        int result = printTaskMapper.updateStatus(id, 0);
+        return ApiResponse.success(result);
+    }
 }