fix(web): 孤儿申请预览消息触发重新生成可编辑表格

useWorkbenchAiApplicationPreviewFlow 识别仅含表格文案但缺 applicationPreview 载荷的孤儿消息，触发重新生成可编辑表格并提示用户，避免提交动作静默失败。

web/src/composables/workbenchAiMode/useWorkbenchAiApplicationPreviewFlow.js

@@ -203,6 +203,19 @@ export function useWorkbenchAiApplicationPreviewFlow({
       .find((message) => message.role === 'assistant' && message.applicationPreview)
   }
 
+  function isOrphanInlineApplicationPreviewMessage(message = {}) {
+    if (message?.applicationPreview || message?.role !== 'assistant') {
+      return false
+    }
+    return /下方表格|申请核对表|点击对应行即可直接编辑/.test(String(message.content || message.text || ''))
+  }
+
+  function resolveLatestOrphanApplicationPreviewMessage() {
+    return [...conversationMessages.value]
+      .reverse()
+      .find((message) => isOrphanInlineApplicationPreviewMessage(message))
+  }
+
   function requestInlineApplicationSubmitConfirmation(targetMessage, options = {}) {
     applicationSubmitConfirmContext.value = {
       messageId: String(targetMessage?.id || '').trim(),
@@ -434,9 +447,22 @@ export function useWorkbenchAiApplicationPreviewFlow({
       return true
     }
     const actionType = resolveInlineApplicationPreviewActionFromText(prompt)
-    if (!actionType || !resolveLatestApplicationPreviewMessage()) {
+    if (!actionType) {
       return false
     }
+    if (!resolveLatestApplicationPreviewMessage()) {
+      const orphanPreviewMessage = resolveLatestOrphanApplicationPreviewMessage()
+      if (!orphanPreviewMessage) {
+        return false
+      }
+      const previewSourceText = resolveLatestInlineUserPrompt()
+      pushInlineApplicationActionUserMessage(prompt)
+      toast('当前申请核对表状态不完整，我先重新生成可编辑表格。')
+      void startAiApplicationPreview('travel', '差旅费', previewSourceText, {
+        pushUserMessage: false
+      })
+      return true
+    }
     void executeInlineApplicationPreviewAction(actionType, null, { userText: prompt })
     return true
   }