feat: 重构报销单服务并完善前端提交与审核交互

重构 expense_claims 服务模块结构并优化差旅票据审核逻辑，
增强用户代理服务的票据类型识别，前端报销创建页面拆分为
附件模型和会话模型模块，重构提交编排器和草稿关联确认流
程，更新知识库索引，补充单元测试。

web/src/views/scripts/TravelReimbursementCreateView.js

@@ -120,6 +120,7 @@ import {
   VISIBLE_ATTACHMENT_CHIPS,
   buildAgentInsight,
   buildErrorInsight,
+  ATTACHMENT_ASSOCIATION_CONFIRM_HREF,
   buildFileIdentity,
   buildFilePreviews,
   buildOcrDocumentsFromReviewPayload,
@@ -431,6 +432,19 @@ function buildReviewRiskConversationText(item) {
   return lines.join('\n')
 }
 
+const REVIEW_PENDING_SUMMARY_PATTERN = /(^|\n)\s*(?:当前还有|我这边看到还有|下方还有|这笔报销还有|目前还有|还有|这次识别结果里还有|我还需要你确认|当前信息还差|本次报销还有)\s+[^\n]*(?:信息待补充|风险提醒|细节还需要进一步确认)[^\n]*(?:草稿)[^\n]*。\s*/g
+
+function buildReviewMainMessageText(message) {
+  const text = String(message?.text || '')
+  if (!message?.reviewPayload) {
+    return text
+  }
+  return text
+    .replace(REVIEW_PENDING_SUMMARY_PATTERN, '\n')
+    .replace(/\n{3,}/g, '\n\n')
+    .trim()
+}
+
 export default {
   name: 'TravelReimbursementCreateView',
   components: {
@@ -779,7 +793,10 @@ export default {
       attachedFiles,
       composerFilesExpanded
     }
-    const { submitComposerInternal } = useTravelReimbursementSubmitComposer({
+    const {
+      confirmPendingAttachmentAssociationInternal,
+      submitComposerInternal
+    } = useTravelReimbursementSubmitComposer({
       MAX_ATTACHMENTS,
       activeReviewPayload,
       activeSessionType,
@@ -1303,7 +1320,8 @@ export default {
         skipUploadDecisionPrompt: true,
         extraContext: {
           draft_claim_id: claimId,
-          selected_claim_id: claimId
+          selected_claim_id: claimId,
+          selected_claim_no: String(record?.claimNo || '').trim()
         }
       })
     }
@@ -1443,6 +1461,27 @@ export default {
       // submitting.value = false
       return submitComposerInternal(options)
     }
+
+    async function handleAssistantMarkdownClick(event, message) {
+      const anchor = event?.target?.closest?.('a')
+      if (!anchor || !message || submitting.value || reviewActionBusy.value || sessionSwitchBusy.value) {
+        return
+      }
+
+      const href = String(anchor.getAttribute('href') || '').trim()
+      if (href !== ATTACHMENT_ASSOCIATION_CONFIRM_HREF) {
+        return
+      }
+
+      event.preventDefault()
+      reviewActionBusy.value = true
+      try {
+        await confirmPendingAttachmentAssociationInternal(message)
+      } finally {
+        reviewActionBusy.value = false
+      }
+    }
+
     async function handleReviewAction(message, action) {
       const actionType = String(action?.action_type || '').trim()
       if (!actionType || submitting.value || reviewActionBusy.value || sessionSwitchBusy.value) return
@@ -1481,11 +1520,11 @@ export default {
       reviewIntentText, reviewFactCards, reviewCategoryOptions, reviewOtherCategoryOptions, reviewSelectedOtherCategory, reviewInlineDirty, reviewInlineForm, reviewInlineEditorKey, reviewInlineErrors, reviewOtherCategoryOpen, reviewInlinePendingFiles, DATE_INPUT_FORMAT, REVIEW_SCENE_OTHER_OPTION, REVIEW_SCENE_OPTIONS, REVIEW_OTHER_CATEGORY_OPTIONS,
       workbenchVisible, reviewPanelConfidence, reviewRiskSummary, reviewRiskItems, reviewRiskEmpty, recognizedNarratives, reviewRecognitionNotes, reviewDocumentSummaries, reviewDocumentCount, reviewDocumentDirty, reviewHasUnsavedChanges, uploadDecisionDialogOpen,
       travelCalculatorOpen, travelCalculatorBusy, travelCalculatorError, travelCalculatorResult, travelCalculatorForm, travelCalculatorCanSubmit, deleteSessionDialogOpen, reviewActionBusy, deleteSessionBusy, documentPreviewDialog, shortcuts,
-      resolveReviewMissingSlotCards, resolveReviewRiskBriefs, buildReviewHeadline, buildReviewSubline, buildReviewStateLabel, buildReviewStateTone, buildReviewPlainFollowupCopy, resolveReviewFooterActions, resolveReviewSaveDraftAction, buildReviewPrimaryButtonLabel,
+      resolveReviewMissingSlotCards, resolveReviewRiskBriefs, buildReviewHeadline, buildReviewSubline, buildReviewStateLabel, buildReviewStateTone, buildReviewPlainFollowupCopy, resolveReviewFooterActions, resolveReviewSaveDraftAction, buildReviewPrimaryButtonLabel, buildReviewMainMessageText,
       renderMarkdown, buildExpenseQueryWindowLabel, buildExpenseQueryHint, getExpenseQueryActivePage, getExpenseQueryTotalPages, getExpenseQueryVisibleRecords, resolveDocumentPreview, triggerFileUpload, applyComposerDateSelection, handleFilesChange, handleComposerInput, handleComposerEnter, runShortcut, runWelcomeQuickAction: runShortcut, handleSuggestedAction, isSuggestedActionSelected, askHotKnowledgeQuestion, resolveKnowledgeRankLabel, resolveKnowledgeRankTone,
       refreshFlowRunDetail, formatFlowStepDuration, resolveFlowStepStatusLabel, resolveFlowStepDetail, toggleInsightPanel, openTravelCalculator, toggleTravelCalculator, closeTravelCalculator, submitTravelCalculator, switchToReviewOverviewDrawer, toggleReviewDocumentDrawer, toggleReviewRiskDrawer, toggleReviewFlowDrawer, toggleAttachedFilesExpanded, removeAttachedFile, clearAttachedFiles,
       requestCloseWorkbench, emitCloseAfterLeave, openExpenseQueryRecord, handleExpenseQueryRecordClick, setExpenseQueryPage, shiftExpenseQueryPage, openDeleteSessionDialog, closeDeleteSessionDialog, confirmDeleteCurrentSession, closeUploadDecisionDialog, continueExistingUpload, createNewUploadDocument, openInlineReviewEditor, closeInlineReviewEditor, commitInlineReviewEditor, clearInlineReviewFieldError, selectInlineScene, selectReviewCategory, selectReviewOtherCategory,
-      queryDraftByClaimNo, appendReviewRiskBriefToConversation, goReviewDocument, openActiveReviewDocumentPreview, closeDocumentPreview, saveInlineReviewChanges, submitComposer, handleReviewAction, handleSaveDraftDirectly, canUseInlineSaveDraft, handleInlineSaveDraft
+      queryDraftByClaimNo, appendReviewRiskBriefToConversation, goReviewDocument, openActiveReviewDocumentPreview, closeDocumentPreview, saveInlineReviewChanges, submitComposer, handleAssistantMarkdownClick, handleReviewAction, handleSaveDraftDirectly, canUseInlineSaveDraft, handleInlineSaveDraft
     }
   }
 }