feat(web): 申请单预览编辑器增强与报销流程细节适配

- useApplicationPreviewEditor 扩展字段编辑与校验，useTravelReimbursementApplicationPreviewDateEditor 微调日期处理
- travelReimbursementExpenseQueryModel/reimbursements 服务/expenseApplicationPreview 适配工号/邮箱字段与关联动作
- useWorkbenchAiApplicationPreviewFlow/usePersonalWorkbenchAiMode 接入关联门控后的预览流转
- TravelReimbursementCreateView 调整入口，TravelReimbursementMessageItem 适配
- 新增 expense-application-fast-preview 测试，更新 attachment-association-confirmation、review-drawer-switch 测试

web/src/components/travel/TravelReimbursementMessageItem.vue

@@ -207,7 +207,7 @@
               <template v-else>
                 <span
                   class="application-preview-text"
-                  :class="{ 'application-preview-date-chip': row.key === 'time' && !row.missing }"
+                  :class="{ 'application-preview-date-chip': ['time', 'time_return'].includes(row.key) && !row.missing }"
                 >{{ row.value }}</span>
                 <button
                   v-if="row.editable"
@@ -276,7 +276,7 @@
 
     <Transition name="structured-card-reveal" appear>
       <div
-        v-if="message.role === 'assistant' && !message.reviewPayload && !message.queryPayload && message.suggestedActions?.length"
+        v-if="message.role === 'assistant' && !message.reviewPayload && (!message.queryPayload || message.queryPayload.selectionMode === 'reimbursement_application_association') && message.suggestedActions?.length"
         class="message-suggested-actions"
         :class="{ 'compact-guidance-actions': message.assistantVariant === 'compact_guidance' }"
       >