feat(ai): unify verified expense application workflow

web/src/components/travel/TravelReimbursementMessageItem.vue

@@ -246,11 +246,47 @@
           <span class="application-preview-missing-suffix">。补齐后我再帮您提交申请。</span>
         </div>
         <div
-          v-else-if="ui.buildApplicationPreviewFooterText(message)"
+          v-else-if="ui.canSubmitApplicationPreview(message) && ui.buildApplicationPreviewFooterText(message)"
           class="application-preview-footer message-answer-content message-answer-markdown"
           v-html="ui.renderMarkdown(ui.buildApplicationPreviewFooterText(message))"
           @click="ui.handleAssistantMarkdownClick($event, message)"
         ></div>
+        <div
+          v-else-if="message.applicationPreview.readyToSubmit"
+          class="application-preview-decision-status"
+          role="status"
+        >
+          <span v-if="message.applicationPreview.decisionTrackingStatus === 'registering'">
+            正在由服务端核验并签发申请预览，请稍候。
+          </span>
+          <span v-else>
+            当前申请预览尚未通过服务端签发。为避免重复或错误建单，保存与提交已暂停。
+          </span>
+        </div>
+        <div
+          v-if="message.applicationPreview.readyToSubmit"
+          class="application-preview-action-row"
+        >
+          <button
+            v-if="ui.canRetryApplicationPreviewDecision(message)"
+            type="button"
+            class="application-preview-secondary-btn"
+            :disabled="ui.submitting || ui.reviewActionBusy || ui.sessionSwitchBusy"
+            @click="ui.retryApplicationPreviewDecision(message)"
+          >
+            <i class="mdi mdi-refresh"></i>
+            <span>重新签发</span>
+          </button>
+          <button
+            type="button"
+            class="application-preview-secondary-btn"
+            :disabled="!ui.canSaveApplicationPreviewDraft(message)"
+            @click="ui.saveApplicationPreviewDraft(message)"
+          >
+            <i class="mdi mdi-content-save-outline"></i>
+            <span>保存草稿</span>
+          </button>
+        </div>
       </div>
     </Transition>