feat: 报销审批流重构与管家计划全链路贯通

- 重构报销状态注册表、审批流路由与平台风险标记
- 完善管家意图规划器与模型计划构建器全链路
- 新增 OCR Worker 脚本、数据库会话管理与通知状态
- 优化文档中心、日志视图、预算中心与员工管理交互
- 增强工作台摘要、图标资源与全局主题样式
- 补充审批路由、状态注册、OCR 服务与管家规划器测试覆盖

web/src/utils/expenseApplicationPreview.js

@@ -125,6 +125,36 @@ export function resolveApplicationDaysFromDateRange(rangeText) {
   return resolveDaysFromDateRange(rangeText)
 }
 
+export function resolveApplicationDateRange(rangeText, daysText = '') {
+  const matchedDates = String(rangeText || '').match(/20\d{2}[-/.]\d{1,2}[-/.]\d{1,2}/g) || []
+  const startDate = normalizeDateText(matchedDates[0] || '')
+  const explicitEndDate = normalizeDateText(matchedDates[matchedDates.length - 1] || '')
+  const inferredEndDate = explicitEndDate && explicitEndDate !== startDate
+    ? explicitEndDate
+    : buildEndDateFromDays(startDate, daysText)
+  const endDate = inferredEndDate || explicitEndDate || startDate
+  const start = parseIsoDate(startDate)
+  const end = parseIsoDate(endDate)
+  if (!start || !end) {
+    return null
+  }
+  const orderedStart = start.getTime() <= end.getTime() ? start : end
+  const orderedEnd = start.getTime() <= end.getTime() ? end : start
+  return {
+    startDate: formatIsoDate(orderedStart),
+    endDate: formatIsoDate(orderedEnd),
+    startTime: orderedStart.getTime(),
+    endTime: orderedEnd.getTime()
+  }
+}
+
+export function applicationDateRangesOverlap(leftRange, rightRange) {
+  if (!leftRange || !rightRange) {
+    return false
+  }
+  return leftRange.startTime <= rightRange.endTime && rightRange.startTime <= leftRange.endTime
+}
+
 function resolvePreviewToday(options = {}) {
   const explicitToday = String(options.today || options.currentDate || '').trim()
   if (parseIsoDate(explicitToday)) return normalizeDateText(explicitToday)
@@ -392,7 +422,7 @@ function normalizeApplicationTypeLabel(value, fallback = '') {
   return `${label}申请`
 }
 
-function normalizeTransportModeOption(value, fallback = '') {
+export function normalizeTransportModeOption(value, fallback = '') {
   const text = String(value || '').trim()
   if (/飞机|机票|航班/.test(text)) return '飞机'
   if (/轮船|船票|客轮|渡轮|邮轮/.test(text)) return '轮船'