feat: 完善差旅票据行程提取与费用明细回填逻辑

增强文档智能识别的票据场景关键词和字段提取能力，优化
会话关联草稿报销单的解析路径，修复费用明细合并和票据
去重边界问题，前端改进报销创建和审批详情交互，补充单
元测试覆盖。

web/src/views/scripts/TravelReimbursementCreateView.js

@@ -1296,6 +1296,65 @@ function buildReviewFormValues(fields) {
   }, {})
 }
 
+function buildBusinessTimeContextFromReviewValues(values = {}) {
+  const timeText = String(values.time_range || values.business_time || values.occurred_date || '').trim()
+  if (!timeText) {
+    return null
+  }
+
+  const matchedDates = timeText.match(/\d{4}-\d{2}-\d{2}/g) || []
+  if (!matchedDates.length) {
+    return null
+  }
+  const startDate = matchedDates[0]
+  const endDate = matchedDates[matchedDates.length - 1] || startDate
+  if (!isValidIsoDateString(startDate) || !isValidIsoDateString(endDate) || startDate > endDate) {
+    return null
+  }
+  const displayValue = startDate === endDate ? startDate : `${startDate} 至 ${endDate}`
+  return {
+    mode: startDate === endDate ? 'single' : 'range',
+    start_date: startDate,
+    end_date: endDate,
+    display_value: displayValue
+  }
+}
+
+function buildReviewFormContextFromPayload(reviewPayload, inlineState = null) {
+  if (!reviewPayload || typeof reviewPayload !== 'object') {
+    return {}
+  }
+
+  const fallbackState = buildInlineReviewState(reviewPayload)
+  const candidateState = inlineState || fallbackState
+  const hasCandidateValue = Object.values(candidateState || {}).some((value) => {
+    if (typeof value === 'number') return value > 0
+    return Boolean(String(value || '').trim())
+  })
+  const state = hasCandidateValue ? candidateState : fallbackState
+  const fields = mergeInlineReviewFields(reviewPayload.edit_fields || [], state)
+  const values = buildReviewFormValues(fields)
+  const slotMap = buildReviewSlotMap(reviewPayload)
+  const inheritedTimeRange = String(
+    slotMap.time_range?.normalized_value ||
+      slotMap.time_range?.value ||
+      values.time_range ||
+      values.business_time ||
+      values.occurred_date ||
+      ''
+  ).trim()
+  if (inheritedTimeRange) {
+    values.time_range = values.time_range || inheritedTimeRange
+    values.business_time = values.business_time || inheritedTimeRange
+  }
+
+  const businessTimeContext = buildBusinessTimeContextFromReviewValues(values)
+  return {
+    review_form_values: values,
+    ...(businessTimeContext ? { business_time_context: businessTimeContext } : {})
+  }
+}
+
 function buildReviewCorrectionMessage(fields) {
   const lines = ['请按以下核对后的报销信息更新当前识别结果：']
   for (const item of cloneReviewEditFields(fields)) {
@@ -4956,7 +5015,13 @@ export default {
     }
 
     function saveInlineReviewChanges() {
-      if (!activeReviewPayload.value || !reviewHasUnsavedChanges.value || reviewActionBusy.value) return
+      if (
+        !activeReviewPayload.value
+        || !reviewHasUnsavedChanges.value
+        || submitting.value
+        || reviewActionBusy.value
+        || sessionSwitchBusy.value
+      ) return
 
       if (reviewInlineEditorKey.value && !commitInlineReviewEditor()) {
         return
@@ -5043,7 +5108,7 @@ export default {
     }
 
     async function submitComposer(options = {}) {
-      if (sessionSwitchBusy.value) return null
+      if (submitting.value || sessionSwitchBusy.value) return null
 
       const rawText = resolveComposerSubmitText(options.rawText).trim()
       const systemGenerated = Boolean(options.systemGenerated)
@@ -5160,6 +5225,21 @@ export default {
 
         if (resolvedUploadDisposition === 'continue_existing') {
           extraContext.review_action = 'link_to_existing_draft'
+          const inheritedReviewContext = buildReviewFormContextFromPayload(
+            activeReviewPayload.value,
+            reviewInlineForm.value
+          )
+          if (inheritedReviewContext.review_form_values) {
+            extraContext.review_form_values = {
+              ...inheritedReviewContext.review_form_values,
+              ...(extraContext.review_form_values && typeof extraContext.review_form_values === 'object'
+                ? extraContext.review_form_values
+                : {})
+            }
+          }
+          if (inheritedReviewContext.business_time_context && !extraContext.business_time_context) {
+            extraContext.business_time_context = inheritedReviewContext.business_time_context
+          }
           effectiveFileNames = mergeUploadAttachmentNames(reviewAttachmentNames, fileNames)
           effectiveOcrDocuments = mergeUploadOcrDocuments(
             buildOcrDocumentsFromReviewPayload(activeReviewPayload.value),
@@ -5362,7 +5442,7 @@ export default {
 
     async function handleReviewAction(message, action) {
       const actionType = String(action?.action_type || '').trim()
-      if (!actionType || reviewActionBusy.value) return
+      if (!actionType || submitting.value || reviewActionBusy.value || sessionSwitchBusy.value) return
 
       if (actionType === 'cancel_review') {
         openCancelReviewDialog(message)