feat(erp/ErpProjectChange/edit): 调整项目变更预算表格功能

- 移除预算行新增删除功能，预算数据从项目预算中自动带出
- 将科目名称和变更前预算字段改为只读显示
- 移除操作列中的删除按钮和相关逻辑
- 优化数据加载逻辑，确保预算和进度列表的数字类型字段正确转换
- 移除handleAddBudget和handleDeleteBudget相关方法
- 在提交数据中添加projectChangeCode字段

src/views/oa/erp/erpProjectChange/edit.vue

@@ -101,21 +101,19 @@
             </el-form-item>
           </el-col>
         </el-row>
-        <el-row v-if="isFormEditable" :gutter="10" class="mb8">
+        <!-- 预算变更表格：预算行从项目预算中自动带出，不允许新增删除，只能修改变更后预算等字段 -->
-          <el-col :span="1.5">
-            <el-button type="primary" icon="Plus" @click="handleAddBudget">添加预算行</el-button>
-          </el-col>
-        </el-row>
         <el-table :data="form.budgetList" border stripe max-height="400">
           <el-table-column label="序号" type="index" width="60" align="center" />
           <el-table-column label="科目名称" width="200" align="center">
             <template #default="scope">
-              <el-input v-model="scope.row.subjectName" placeholder="请输入科目名称" />
+              <!-- 科目名称从项目预算带出，只读显示 -->
+              <span>{{ scope.row.subjectName }}</span>
             </template>
           </el-table-column>
           <el-table-column label="变更前预算" width="150" align="center">
             <template #default="scope">
-              <el-input-number v-model="scope.row.budgetBefore" :min="0" :precision="2" controls-position="right" style="width: 100%" />
+              <!-- 变更前预算从项目预算带出，只读显示（已在数据加载时转换为数字类型） -->
+              <span>{{ scope.row.budgetBefore?.toFixed(2) }}</span>
             </template>
           </el-table-column>
           <el-table-column label="变更后预算" width="150" align="center">
@@ -138,13 +136,6 @@
               <el-input v-model="scope.row.remark" placeholder="请输入备注" />
             </template>
           </el-table-column>
-          <el-table-column v-if="isFormEditable" label="操作" width="80" align="center" fixed="right">
-            <template #default="scope">
-              <!-- 只允许删除新增的预算行，不允许删除从后端带出的原有预算科目 -->
-              <el-button v-if="!scope.row.changeBudgetId" type="danger" link icon="Delete" @click="handleDeleteBudget(scope.$index)">删除</el-button>
-              <span v-else style="color: #909399; font-size: 12px">原有科目</span>
-            </template>
-          </el-table-column>
         </el-table>
 
         <el-divider content-position="left">进度变更（项目里程碑/关键节点）</el-divider>
@@ -238,7 +229,7 @@ import {
 } from '@/api/oa/erp/erpProjectChange';
 import { ElMessage } from 'element-plus';
 import { useUserStore } from '@/store/modules/user';
-import type { ErpProjectChangeBudget, ErpProjectChangeForm } from '@/api/oa/erp/erpProjectChange/types';
+import type { ErpProjectChangeForm } from '@/api/oa/erp/erpProjectChange/types';
 // import approvalButton from '@/components/Workflow/approvalButton.vue';
 // import SubmitVerify from '@/components/Workflow/SubmitVerify.vue';
 // import ApprovalRecord from '@/components/Workflow/ApprovalRecord.vue';
@@ -369,16 +360,26 @@ const handleProjectChange = async (projectId: string | number) => {
     const res = await prepareProjectChangeWithInfo(projectId);
     if (res.code === 200) {
       // 保留已填写的变更信息，只更新项目相关信息
+      // 注意：budgetList 和 progressList 应从后端获取，不应保留前端空数组
       const changeData = {
         changeType: form.value.changeType,
         currentStatus: form.value.currentStatus,
         changeReason: form.value.changeReason,
-        followUpWork: form.value.followUpWork,
+        followUpWork: form.value.followUpWork
-        budgetList: form.value.budgetList,
-        progressList: form.value.progressList
       };
 
       Object.assign(form.value, res.data, changeData);
+      // 确保使用后端返回的预算和进度列表，并转换数字类型字段
+      form.value.budgetList = (res.data.budgetList ?? []).map((item: any) => ({
+        ...item,
+        budgetBefore: Number(item.budgetBefore || 0),
+        budgetAfter: Number(item.budgetAfter || 0),
+        amountUsed: Number(item.amountUsed || 0)
+      }));
+      form.value.progressList = (res.data.progressList ?? []).map((item: any) => ({
+        ...item,
+        completionDegree: Number(item.completionDegree || 0)
+      }));
 
       // 处理变更类型（多选）
       if (form.value.changeType) {
@@ -415,8 +416,17 @@ const loadProjectDataByProjectId = async (projectId: string | number) => {
       Object.assign(form.value, res.data);
       const dateOnly = toDateOnly(form.value.applyChangeDate);
       form.value.applyChangeDate = dateOnly ?? formatToday();
-      form.value.budgetList = res.data.budgetList ?? [];
+      // 转换数字类型字段，确保el-input-number组件正常工作
-      form.value.progressList = res.data.progressList ?? [];
+      form.value.budgetList = (res.data.budgetList ?? []).map((item: any) => ({
+        ...item,
+        budgetBefore: Number(item.budgetBefore || 0),
+        budgetAfter: Number(item.budgetAfter || 0),
+        amountUsed: Number(item.amountUsed || 0)
+      }));
+      form.value.progressList = (res.data.progressList ?? []).map((item: any) => ({
+        ...item,
+        completionDegree: Number(item.completionDegree || 0)
+      }));
       // 处理变更类型多选
       if (form.value.changeType) {
         changeTypeList.value = form.value.changeType.split(',');
@@ -428,23 +438,8 @@ const loadProjectDataByProjectId = async (projectId: string | number) => {
   }
 };
 
-const handleAddBudget = () => {
+// 预算行不允许新增删除，数据从项目预算中自动带出
-  const list = form.value.budgetList ?? (form.value.budgetList = []);
+// handleAddBudget 和 handleDeleteBudget 方法已移除
-  const budget: ErpProjectChangeBudget = {
-    subjectName: '',
-    budgetBefore: 0,
-    budgetAfter: 0,
-    amountUsed: 0,
-    adjustmentReason: '',
-    sortOrder: list.length + 1,
-    remark: ''
-  };
-  list.push(budget);
-};
-
-const handleDeleteBudget = (index: number) => {
-  form.value.budgetList.splice(index, 1);
-};
 
 /** 提交按钮（与项目信息保持一致的处理方式） */
 const submitForm = (status: string, mode: boolean) => {
@@ -477,7 +472,8 @@ const submitForm = (status: string, mode: boolean) => {
           projectCode: form.value.projectCode,
           projectManagerId: form.value.projectManagerId,
           deptHeadId: form.value.deptHeadId,
-          changeType: form.value.changeType
+          changeType: form.value.changeType,
+          projectChangeCode: form.value.projectChangeCode
         };
         // 流程实例业务扩展字段
         form.value.bizExt = {