refactor: 提取公共分页解析函数 parsePageAndSize

- 新增 internal/api/handler/common.go 存放 handler 层公共辅助函数
- parsePageAndSize: 统一提取 page/page_size 参数解析、默认值设置、ClampPageSize 调用
- device/log/webhook handler: 替换重复的分页解析代码为 parsePageAndSize 调用
- 清理不再需要的 strconv/pagination 导入

internal/api/handler/log_handler.go

@@ -3,11 +3,9 @@ package handler
 import (
 	"fmt"
 	"net/http"
-	"strconv"
 
 	"github.com/gin-gonic/gin"
 
-	"github.com/user-management-system/internal/pagination"
 	"github.com/user-management-system/internal/service"
 )
 
@@ -43,12 +41,7 @@ func (h *LogHandler) GetMyLoginLogs(c *gin.Context) {
 		return
 	}
 
-	page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
-	if page < 1 {
-		page = 1
-	}
-	pageSize, _ := strconv.Atoi(c.DefaultQuery("page_size", strconv.Itoa(pagination.DefaultPageSize)))
-	pageSize = pagination.ClampPageSize(pageSize)
+	page, pageSize := parsePageAndSize(c)
 
 	logs, total, err := h.loginLogService.GetMyLoginLogs(c.Request.Context(), userID, page, pageSize)
 	if err != nil {
@@ -86,12 +79,7 @@ func (h *LogHandler) GetMyOperationLogs(c *gin.Context) {
 		return
 	}
 
-	page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
-	if page < 1 {
-		page = 1
-	}
-	pageSize, _ := strconv.Atoi(c.DefaultQuery("page_size", strconv.Itoa(pagination.DefaultPageSize)))
-	pageSize = pagination.ClampPageSize(pageSize)
+	page, pageSize := parsePageAndSize(c)
 
 	logs, total, err := h.operationLogService.GetMyOperationLogs(c.Request.Context(), userID, page, pageSize)
 	if err != nil {