feat(oa/crm): 为出差申请审批流程添加动态表单验证

- 在审批模式下为申请人添加开始和结束日期的强制校验
- 实现结束日期必须晚于开始日期的自定义验证逻辑
- 仅在审批类型且当前用户为申请人时启用强校验

src/views/oa/crm/businessTripApply/edit.vue

@@ -20,7 +20,7 @@
           出差申请{{ routeParams.type === 'view' ? ' - 查看' : form.tripId ? ' - 修改' : ' - 新增' }}
         </div>
       </template>
-      <el-form ref="businessTripApplyFormRef" :model="form" :loading="buttonLoading" :rules="rules" label-width="120px">
+      <el-form ref="businessTripApplyFormRef" :model="form" :loading="buttonLoading" :rules="computedRules" label-width="120px">
         <!-- 通用字段区域 -->
         <el-row :gutter="20">
           <el-col :span="12">
@@ -132,7 +132,7 @@
               </el-select>
             </el-form-item>
           </el-col>
-          <el-col :span="12" v-if="!isFormDisabled">
+          <el-col :span="12" v-if="routeParams.type === 'approval' && !isFormDisabled">
             <el-form-item label="抄送人员" prop="copyUserIds">
               <el-select v-model="form.copyUserIds" placeholder="请选择抄送人员" filterable clearable multiple style="width: 100%">
                 <el-option v-for="user in userList" :key="user.userId" :label="user.nickName" :value="String(user.userId)" />
@@ -489,6 +489,25 @@ const isFormDisabled = computed(() => {
 // 计算动态校验规则
 const computedRules = computed(() => {
   const baseRules = { ...rules.value };
+
+  // 申请人确认节点添加强校验（开始日期和结束日期不为空，且结束要在开始之后）
+  if (routeParams.value.type === 'approval' && String(useUserStore().userId) === String(form.value.applicantId)) {
+    baseRules.startTime = [{ required: true, message: '开始日期不能为空', trigger: 'change' }];
+    baseRules.endTime = [
+      { required: true, message: '结束日期不能为空', trigger: 'change' },
+      {
+        validator: (rule: any, value: any, callback: any) => {
+          if (value && form.value.startTime && dayjs(value).isBefore(dayjs(form.value.startTime))) {
+            callback(new Error('结束日期不能早于开始日期'));
+          } else {
+            callback();
+          }
+        },
+        trigger: 'change'
+      }
+    ];
+  }
+
   return baseRules;
 });