feat(erp): 优化项目变更历史记录功能

- 添加抽屉点击遮罩关闭功能
- 增加情况说明类型的标签显示支持
- 添加基础信息变更对比逻辑，包括当前情况、变更原因和后续工作
- 修复进度变更中阶段ID使用错误问题

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

@@ -205,7 +205,7 @@
     <ApprovalRecord ref="approvalRecordRef" />
 
     <!-- 项目变更历史记录抽屉 -->
-    <el-drawer v-model="historyDrawer.visible" :title="historyDrawer.title" size="700px">
+    <el-drawer v-model="historyDrawer.visible" :title="historyDrawer.title" size="700px" :close-on-click-modal="true">
       <el-timeline v-if="historyDrawer.list && historyDrawer.list.length > 0">
         <el-timeline-item
           v-for="(item, index) in historyDrawer.list"
@@ -216,11 +216,17 @@
           size="large"
         >
           <el-card shadow="hover">
-            <div v-for="(msg, mIndex) in item.messages" :key="mIndex" style="margin-bottom: 15px; font-size: 14px; line-height: 1.5;">
-              <el-tag :type="msg.type === '预算变更' ? 'success' : 'warning'" size="small" style="margin-right: 10px;" effect="dark">{{ msg.type }}</el-tag>
-              <span style="color: #606266;">{{ msg.desc }}</span>
+            <div v-for="(msg, mIndex) in item.messages" :key="mIndex" style="margin-bottom: 15px; font-size: 14px; line-height: 1.5">
+              <el-tag
+                :type="msg.type === '预算变更' ? 'success' : msg.type === '情况说明' ? 'info' : 'warning'"
+                size="small"
+                style="margin-right: 10px"
+                effect="dark"
+                >{{ msg.type }}</el-tag
+              >
+              <span style="color: #606266">{{ msg.desc }}</span>
             </div>
-            <div v-if="item.messages.length === 0" style="color: #909399; font-size: 13px;">本次变更未修改预算金额与进度计划。</div>
+            <div v-if="item.messages.length === 0" style="color: #909399; font-size: 13px">本次变更未修改预算金额与进度计划。</div>
           </el-card>
         </el-timeline-item>
       </el-timeline>
@@ -430,7 +436,7 @@ const historyDrawer = reactive({
 });
 
 const handleViewHistory = async (row: any) => {
-  historyDrawer.title = `每一次变更的历史记录（${row.projectName}）`;
+  historyDrawer.title = `变更历史记录（${row.projectName}）`;
   historyDrawer.visible = true;
   historyDrawer.list = [];
 
@@ -440,9 +446,14 @@ const handleViewHistory = async (row: any) => {
     if (res.data) {
       const records = res.data;
       const historyList = [];
-      
+
       const previousBudget: Record<string, number> = {};
       const previousProgressContent: Record<string, any> = {};
+      const previousBasicInfo: Record<string, string> = {
+        currentStatus: '',
+        changeReason: '',
+        followUpWork: ''
+      };
 
       for (let i = 0; i < records.length; i++) {
         const item = records[i];
@@ -470,7 +481,7 @@ const handleViewHistory = async (row: any) => {
         // 2. 进度变更详情提取
         if (item.progressList && item.progressList.length > 0) {
           item.progressList.forEach((progress: any) => {
-            const phaseKey = progress.projectPhases;
+            const phaseKey = progress.planStageId; // 使用原计划阶段ID作为不变的唯一Key，防止为空时所有阶段混在一起
             const prev = previousProgressContent[phaseKey] || {
               start: progress.originalStart,
               end: progress.originalEnd,
@@ -483,12 +494,16 @@ const handleViewHistory = async (row: any) => {
 
             // 对比开始时间
             if (prev.start && progress.changedStart && prev.start !== progress.changedStart) {
-              diffs.push(`原计划时间起的 ${proxy?.parseTime(prev.start, '{y}-{m}-{d}')} 变为变更后时间起的 ${proxy?.parseTime(progress.changedStart, '{y}-{m}-{d}')}`);
+              diffs.push(
+                `原计划时间起的 ${proxy?.parseTime(prev.start, '{y}-{m}-{d}')} 变为变更后时间起的 ${proxy?.parseTime(progress.changedStart, '{y}-{m}-{d}')}`
+              );
               startChanged = true;
             }
             // 对比结束时间
             if (prev.end && progress.changedEnd && prev.end !== progress.changedEnd) {
-              diffs.push(`原计划时间止的 ${proxy?.parseTime(prev.end, '{y}-{m}-{d}')} 变为变更后时间止的 ${proxy?.parseTime(progress.changedEnd, '{y}-{m}-{d}')}`);
+              diffs.push(
+                `原计划时间止的 ${proxy?.parseTime(prev.end, '{y}-{m}-{d}')} 变为变更后时间止的 ${proxy?.parseTime(progress.changedEnd, '{y}-{m}-{d}')}`
+              );
               endChanged = true;
             }
             // 里程碑变动情况
@@ -503,13 +518,13 @@ const handleViewHistory = async (row: any) => {
               const phaseLabel = proxy?.selectDictLabel(project_phases.value, progress.projectPhases) || progress.projectPhases || '未知';
               const diffStr = diffs.join('，');
               let finalDescText = diffStr;
-              
+
               if (finalDescText && msDiff) {
                 finalDescText += `，同时将${msDiff}`;
               } else if (msDiff) {
                 finalDescText = `将${msDiff}`;
               }
-              
+
               messages.push({
                 type: '进度变更',
                 desc: `将进度变更中【${phaseLabel}】阶段的 ` + finalDescText
@@ -524,7 +539,34 @@ const handleViewHistory = async (row: any) => {
             };
           });
         }
-        
+
+        // 3. 项目说明信息详情提取
+        const basicDiffs = [];
+        if (item.currentStatus && item.currentStatus !== previousBasicInfo.currentStatus) {
+          const oldVal = previousBasicInfo.currentStatus ? `“${previousBasicInfo.currentStatus}”` : '空白';
+          basicDiffs.push(`当前情况由 ${oldVal} 变更为 “${item.currentStatus}”`);
+        }
+        if (item.changeReason && item.changeReason !== previousBasicInfo.changeReason) {
+          const oldVal = previousBasicInfo.changeReason ? `“${previousBasicInfo.changeReason}”` : '空白';
+          basicDiffs.push(`变更原因由 ${oldVal} 变更为 “${item.changeReason}”`);
+        }
+        if (item.followUpWork && item.followUpWork !== previousBasicInfo.followUpWork) {
+          const oldVal = previousBasicInfo.followUpWork ? `“${previousBasicInfo.followUpWork}”` : '空白';
+          basicDiffs.push(`后续工作由 ${oldVal} 变更为 “${item.followUpWork}”`);
+        }
+
+        if (basicDiffs.length > 0) {
+          messages.push({
+            type: '情况说明',
+            desc: basicDiffs.join('，')
+          });
+        }
+
+        // 更新本次基础信息状态供下次对比使用
+        previousBasicInfo.currentStatus = item.currentStatus || previousBasicInfo.currentStatus;
+        previousBasicInfo.changeReason = item.changeReason || previousBasicInfo.changeReason;
+        previousBasicInfo.followUpWork = item.followUpWork || previousBasicInfo.followUpWork;
+
         historyList.push({
           changeNumber: item.changeNumber,
           createTime: item.createTime,
@@ -535,7 +577,7 @@ const handleViewHistory = async (row: any) => {
       historyDrawer.list = historyList;
     }
   } catch (error) {
-    console.error("加载变更历史记录失败", error);
+    console.error('加载变更历史记录失败', error);
   } finally {
     proxy?.$modal.closeLoading();
   }