feat: 完善文档中心与报销申请交互及侧边栏重构

后端优化编排器报销查询和本体检测精度，增强报销单草稿保
存和附件回填逻辑，前端重构侧边栏组件支持折叠和图标导
航，完善文档中心状态筛选和详情提示，报销创建和审批详情
页优化会话管理和费用明细交互，新增助手应用服务和预设动
作工具函数，补充单元测试覆盖。

web/src/views/scripts/useTravelReimbursementComposerTools.js

@@ -91,7 +91,7 @@ function stripBusinessTimePrefix(text) {
 
 function resolveDestinationFromText(text) {
   const normalized = normalizeComposerText(text).replace(/\s+/g, '')
-  const targetMatch = normalized.match(/(?:去|到|赴|前往)([^，,。；;]+)/u)
+  const targetMatch = normalized.match(/(?:出差|去|到|赴|前往)([^，,。；;]+)/u)
   const targetText = String(targetMatch?.[1] || '').trim()
   if (!targetText) {
     return ''
@@ -117,7 +117,7 @@ function resolveTripDaysFromText(text, businessTimeContext) {
 
 function resolveReasonFromText(text, destination) {
   let reason = normalizeComposerText(text)
-    .replace(/^(?:去|到|赴|前往)\s*/u, '')
+    .replace(/^(?:出差|去|到|赴|前往)\s*/u, '')
     .trim()
 
   if (destination && reason.startsWith(destination)) {