feat: 添加导入失败记录对话框

- 添加独立的失败记录对话框组件
- 包含失败记录表格展示(采购事项ID、项目名称、标的物名称、失败原因)
- 支持分页查询失败记录
- 提供清除历史记录功能
- 显示导入摘要信息(总数、成功数、失败数)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

ruoyi-ui/src/views/ccdiPurchaseTransaction/index.vue

@@ -530,6 +530,42 @@
       title="导入结果"
       @close="handleImportResultClose"
     />
+
+    <!-- 导入失败记录对话框 -->
+    <el-dialog
+      title="导入失败记录"
+      :visible.sync="failureDialogVisible"
+      width="1200px"
+      append-to-body
+    >
+      <el-alert
+        v-if="lastImportInfo"
+        :title="lastImportInfo"
+        type="info"
+        :closable="false"
+        style="margin-bottom: 15px"
+      />
+
+      <el-table :data="failureList" v-loading="failureLoading">
+        <el-table-column label="采购事项ID" prop="purchaseId" align="center" />
+        <el-table-column label="项目名称" prop="projectName" align="center" :show-overflow-tooltip="true"/>
+        <el-table-column label="标的物名称" prop="subjectName" align="center" :show-overflow-tooltip="true"/>
+        <el-table-column label="失败原因" prop="errorMessage" align="center" min-width="200" :show-overflow-tooltip="true" />
+      </el-table>
+
+      <pagination
+        v-show="failureTotal > 0"
+        :total="failureTotal"
+        :page.sync="failureQueryParams.pageNum"
+        :limit.sync="failureQueryParams.pageSize"
+        @pagination="getFailureList"
+      />
+
+      <div slot="footer" class="dialog-footer">
+        <el-button @click="failureDialogVisible = false">关闭</el-button>
+        <el-button type="danger" plain @click="clearImportHistory">清除历史记录</el-button>
+      </div>
+    </el-dialog>
   </div>
 </template>