feat: add dryrun parameter to skip save operations

Add dryrun boolean parameter to DiscreteMaterialPlanCleaner.
When dryrun=True, the save_button_locator.click() is skipped,
allowing preview of changes without actually saving.

Co-Authored-By: Claude (glm-5) <noreply@anthropic.com>

utils/discrete_material_plan_cleaner.py

@@ -41,11 +41,13 @@ class DiscreteMaterialPlanCleaner:
         manager_names: Union[str, List[str], None] = None,
         headless=False,
         verbose=True,
+        dryrun=False,
     ):
         self.username = username
         self.password = password
         self.headless = headless
         self.verbose = verbose
+        self.dryrun = dryrun
 
         # 参数规范化：支持 str、List[str]、None
         if manager_names is None:
@@ -244,12 +246,15 @@ class DiscreteMaterialPlanCleaner:
                 collapse_btn.click()
 
                 # 执行最终保存逻辑（如业务需要）
-                save_button_locator.click()
-                self._log("已点击保存，等待保存完成...")
-                save_button_locator.wait_for(
-                    state="hidden", timeout=60000
-                )  # 等待按钮消失，超时60秒
-                self._log("✅ 保存成功（保存按钮已消失）")
+                if self.dryrun:
+                    self._log("[DRYRUN] 跳过保存操作")
+                else:
+                    save_button_locator.click()
+                    self._log("已点击保存，等待保存完成...")
+                    save_button_locator.wait_for(
+                        state="hidden", timeout=60000
+                    )  # 等待按钮消失，超时60秒
+                    self._log("✅ 保存成功（保存按钮已消失）")
             else:
                 self._log("订单无备料计划数据，无需处理")
         elif detail_status == "完成":