基础信息页：编辑弹窗新增另存为新项功能（清主键+切标题+清脏检查基准，复用 addMaterialBase 接口）

inventory-web/src/views/material/list.vue

@@ -370,15 +370,26 @@
         <template #header>
           <div style="display: flex; align-items: center; justify-content: space-between; padding-right: 20px;">
             <span style="font-size: 18px; font-weight: 500;">{{ dialog.title }}</span>
-            <el-link
-                v-if="form.id"
-                type="success"
-                :underline="false"
-                style="font-size: 14px;"
-                @click="createBomForMaterial"
-            >
-              <el-icon style="margin-right: 4px"><Plus /></el-icon>加入或查看BOM
-            </el-link>
+            <div style="display: flex; align-items: center; gap: 16px;">
+              <el-link
+                  v-if="form.id"
+                  type="primary"
+                  :underline="false"
+                  style="font-size: 14px;"
+                  @click="handleSaveAs"
+              >
+                <el-icon style="margin-right: 4px"><DocumentCopy /></el-icon>另存为新项
+              </el-link>
+              <el-link
+                  v-if="form.id"
+                  type="success"
+                  :underline="false"
+                  style="font-size: 14px;"
+                  @click="createBomForMaterial"
+              >
+                <el-icon style="margin-right: 4px"><Plus /></el-icon>加入或查看BOM
+              </el-link>
+            </div>
           </div>
         </template>
         <el-form ref="formRef" :model="form" :rules="rules" label-width="110px">
@@ -659,7 +670,7 @@
 
 <script setup lang="ts">
 import { ref, reactive, onMounted, nextTick, computed, watch } from 'vue';
-import { Plus, Document, Refresh, Setting, Rank, Camera, Link, Download, Bell, CircleCheck, Files, ZoomIn, Delete, Picture } from '@element-plus/icons-vue';
+import { Plus, Document, DocumentCopy, Refresh, Setting, Rank, Camera, Link, Download, Bell, CircleCheck, Files, ZoomIn, Delete, Picture } from '@element-plus/icons-vue';
 import { ElMessage, ElMessageBox, ElLoading } from 'element-plus';
 import type { FormInstance, FormRules } from 'element-plus';
 import { useUserStore } from '@/stores/user';
@@ -1357,6 +1368,23 @@ const handleEdit = (row: MaterialBaseVO) => {
   });
 };
 
+// 另存为新项：把当前编辑项的数据复制一份，转为"新增"模式提交
+const handleSaveAs = () => {
+  if (!form.value.id) return; // 防御：新增模式下不该看到此按钮
+
+  // 1. 清除主键：submitForm 用 form.value.id 判空决定走 add / update 接口
+  delete form.value.id;
+
+  // 2. 切换弹窗标题（项目沿用 dialog.title 命名，无 dialogType / isEdit 变量）
+  dialog.title = '新增基础信息';
+
+  // 3. 清空脏检查基准：让 submitForm 走"完整 payload"分支（新增模式）
+  originalForm.value = null;
+
+  // 4. 提示用户
+  ElMessage.success('已成功复制当前数据，已切换至【新增】模式。请修改特定信息（如规格型号）后点击确定保存。');
+};
+
 const checkDuplicate = async (name: string, spec: string): Promise<boolean> => {
   try {
     const nameRes: any = await listMaterialBase({ pageNum: 1, pageSize: 100, keyword: name, category: '', type: '', company: '' });