refactor(workflow): 优化表单渲染逻辑

- 使用 parserKey 替代时间戳作为 parser组件的 key，提升性能
- 仅在加载新表单时更新 parserKey，减少不必要的渲染- 移除了冗余的角色、部门和发起人相关的代码块

klp-ui/src/views/workflow/work/start.vue

@@ -6,7 +6,7 @@
       </div>
       <el-col :span="18" :offset="3">
         <div class="form-conf" v-if="formOpen">
-          <parser :key="new Date().getTime()" :form-conf="formData" ref="parser" @getData="getData"/>
+          <parser :key="parserKey" :form-conf="formData" ref="parser" @getData="getData"/>
         </div>
 
         <!-- 审批负责人设置 -->
@@ -104,6 +104,7 @@ export default {
       procInsId: null,
       formOpen: false,
       formData: {},
+      parserKey: 1,
       // 审批表单
       approvalForm: {
         approvalType: 1, // 默认指定用户
@@ -152,6 +153,7 @@ export default {
           this.formData = res.data;
           // 表单按钮隐藏
           this.formData.formBtns = false;
+          this.parserKey++   // 只有加载新表单时才更新 key
           this.formOpen = true
         }
       })
@@ -202,21 +204,6 @@ export default {
             formData.flowable.candidateUsers = this.approvalUsers.map(user => user.userId).join(',');
             formData.flowable.candidateGroups = '';
             formData.flowable.text = this.approvalUsers.map(user => user.nickName).join(',');
-          } else if (this.approvalForm.approvalType === 2) {
-            // 角色
-            formData.flowable = formData.flowable || {};
-            formData.flowable.candidateUsers = '';
-            formData.flowable.candidateGroups = 'ROLE_';
-          } else if (this.approvalForm.approvalType === 3) {
-            // 部门
-            formData.flowable = formData.flowable || {};
-            formData.flowable.candidateUsers = '';
-            formData.flowable.candidateGroups = 'DEPT_';
-          } else if (this.approvalForm.approvalType === 4) {
-            // 发起人
-            formData.flowable = formData.flowable || {};
-            formData.flowable.candidateUsers = '';
-            formData.flowable.candidateGroups = '';
           }
 
           // 启动流程并将表单数据加入流程变量