fix: 修复员工服务、报销单审批及前端交互细节

- 修复员工创建时组织架构关联与邮箱校验逻辑
- 修复报销单API端点参数及预审流程调用
- 优化审批中心、差旅详情等前端页面交互
- 更新侧边栏导航与请求视图模型
- 补充员工服务与报销单相关测试用例

web/src/views/TravelRequestDetailView.vue

@@ -82,7 +82,7 @@
                     <span>智能录入</span>
                   </button>
                   <button
-                    v-if="isDraftRequest"
+                  v-if="isEditableRequest"
                     class="smart-entry-btn secondary"
                     type="button"
                     :disabled="actionBusy"
@@ -104,7 +104,7 @@
                       <th class="col-amount">金额</th>
                       <th class="col-attachment">附件材料</th>
                       <th v-if="hasExpenseRiskColumn" class="col-risk">系统校验</th>
-                      <th v-if="isDraftRequest" class="col-action">操作</th>
+                      <th v-if="isEditableRequest" class="col-action">操作</th>
                     </tr>
                   </thead>
                   <tbody>
@@ -297,7 +297,7 @@
                             </p>
                           </template>
                         </td>
-                        <td v-if="isDraftRequest" class="expense-action-cell col-action">
+                        <td v-if="isEditableRequest" class="expense-action-cell col-action">
                           <div v-if="editingExpenseId === item.id" class="row-action-group">
                             <button
                               class="inline-action primary"
@@ -366,7 +366,7 @@
               </div>
             </article>
 
-            <article v-if="isDraftRequest" class="detail-card panel validation-card">
+            <article v-if="isEditableRequest" class="detail-card panel validation-card">
               <div class="validation-head">
                 <div>
                   <h3>AI建议</h3>
@@ -393,10 +393,10 @@
           <i class="mdi mdi-arrow-left"></i>
           <span>返回报销列表</span>
         </button>
-        <div v-if="isDraftRequest" class="approval-action-group" aria-label="申请操作">
+        <div v-if="isEditableRequest" class="approval-action-group" aria-label="申请操作">
           <button class="reject-action" type="button" :disabled="actionBusy" @click="handleDeleteRequest">
             <i class="mdi mdi-trash-can-outline"></i>
-            {{ deleteBusy ? '删除中' : '删除草稿' }}
+            {{ deleteBusy ? '删除中' : deleteActionLabel }}
           </button>
           <button class="approve-action" type="button" :disabled="!canSubmit" @click="handleSubmit">
             <i class="mdi mdi-send-circle-outline"></i>
@@ -500,7 +500,7 @@
       badge="退回单据"
       badge-tone="warning"
       :title="`确认退回 ${request.id} 吗？`"
-      description="退回后该单据会进入待补充状态，申请人需要补充后重新提交。"
+      description="退回后该单据会回到待提交状态，申请人需要调整后重新提交并再次经过 AI 预审。"
       cancel-text="取消"
       confirm-text="确认退回"
       busy-text="退回中..."