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/useTravelReimbursementReviewDrawer.js

@@ -103,15 +103,15 @@ export function useTravelReimbursementReviewDrawer({
   const isReviewFlowDrawer = computed(() => reviewDrawerMode.value === REVIEW_DRAWER_MODE_FLOW)
   const reviewDrawerTitle = computed(() => (
     isReviewDocumentDrawer.value
-      ? '绁ㄦ嵁璇嗗埆缁撴灉'
+      ? '票据识别结果'
       : isReviewRiskDrawer.value
-        ? '椋庨櫓鎻愮ず'
+        ? '风险提示'
         : isReviewFlowDrawer.value
-          ? '璋冪敤娴佺▼'
-          : '鎶ラ攢璇嗗埆鏍稿'
+          ? '执行流程'
+          : '报销识别核对'
   ))
   const reviewDocumentDrawerLabel = computed(() => (
-    '鍗曟嵁璇嗗埆'
+    '单据识别'
   ))
   const reviewDocumentDrawerIcon = computed(() => (
     isReviewDocumentDrawer.value
@@ -119,7 +119,7 @@ export function useTravelReimbursementReviewDrawer({
       : 'mdi mdi-file-document-multiple-outline'
   ))
   const reviewRiskDrawerLabel = computed(() => (
-    '鏄剧ず椋庨櫓'
+    '显示风险'
   ))
   const reviewRiskDrawerIcon = computed(() => (
     isReviewRiskDrawer.value
@@ -127,7 +127,7 @@ export function useTravelReimbursementReviewDrawer({
       : 'mdi mdi-shield-alert-outline'
   ))
   const reviewFlowDrawerLabel = computed(() => (
-    '璋冪敤娴佺▼'
+    '执行流程'
   ))
   const reviewFlowDrawerIcon = computed(() => (
     isReviewFlowDrawer.value
@@ -253,7 +253,7 @@ export function useTravelReimbursementReviewDrawer({
     ) {
       nextForm.reason_value = String(reviewInlineForm.value.reason_value || '').trim()
       if (!nextForm.reason_value) {
-        setInlineReviewFieldError('scene', '璇烽€夋嫨鈥滃叾浠栧満鏅€濆悗锛岃琛ュ厖鍏蜂綋浜嬬敱')
+        setInlineReviewFieldError('scene', '请选择“其他场景”后，请补充具体事由')
         reviewInlineForm.value = nextForm
         return false
       }
@@ -262,14 +262,14 @@ export function useTravelReimbursementReviewDrawer({
     }
 
     if (activeEditorKey === 'occurred_date' && nextForm.occurred_date && !isValidIsoDateString(nextForm.occurred_date)) {
-      setInlineReviewFieldError('occurred_date', `璇疯緭鍏ユ纭殑鏃堕棿鏍煎紡锛?{DATE_INPUT_FORMAT}`)
+      setInlineReviewFieldError('occurred_date', `请输入正确的时间格式：${DATE_INPUT_FORMAT}`)
       return false
     }
 
     if (activeEditorKey === 'amount' && nextForm.amount) {
       const normalizedAmount = normalizeAmountValue(nextForm.amount)
       if (!normalizedAmount) {
-        setInlineReviewFieldError('amount', '璇疯緭鍏ユ纭殑鏁板瓧閲戦锛屼緥濡?200 鎴?200.50')
+        setInlineReviewFieldError('amount', '请输入正确的数字金额，例如 200 或 200.50')
         return false
       }
       nextForm.amount = normalizedAmount