feat: 新增票据夹模块并优化 OCR 与员工画像服务

后端新增票据夹端点、数据模型和服务模块，优化 OCR 端点
Schema 和附件操作逻辑，完善员工行为画像服务和辅助函数，
前端新增票据夹视图和服务层，优化文档中心样式和侧边栏导
航，完善员工画像详情弹窗和权限控制，补充单元测试。

web/src/services/receiptFolder.js

@@ -0,0 +1,49 @@
+import { apiRequest } from './api.js'
+
+function buildStatusQuery(status = 'all') {
+  const normalized = String(status || 'all').trim()
+  return normalized ? `?status=${encodeURIComponent(normalized)}` : ''
+}
+
+export function fetchReceiptFolderItems(status = 'all') {
+  return apiRequest(`/receipt-folder${buildStatusQuery(status)}`)
+}
+
+export function fetchReceiptFolderDetail(receiptId) {
+  return apiRequest(`/receipt-folder/${encodeURIComponent(String(receiptId || '').trim())}`)
+}
+
+export function updateReceiptFolderItem(receiptId, payload = {}) {
+  return apiRequest(`/receipt-folder/${encodeURIComponent(String(receiptId || '').trim())}`, {
+    method: 'PATCH',
+    body: JSON.stringify(payload)
+  })
+}
+
+export function deleteReceiptFolderItem(receiptId) {
+  return apiRequest(`/receipt-folder/${encodeURIComponent(String(receiptId || '').trim())}`, {
+    method: 'DELETE'
+  })
+}
+
+export function fetchReceiptFolderAsset(pathOrUrl) {
+  const target = String(pathOrUrl || '').trim()
+  if (!target) {
+    throw new Error('票据文件地址为空。')
+  }
+  return apiRequest(target, {
+    responseType: 'blob'
+  })
+}
+
+export async function buildReceiptFile(receipt) {
+  const blob = await fetchReceiptFolderAsset(receipt?.source_url || receipt?.sourceUrl)
+  const fileName = String(receipt?.file_name || receipt?.fileName || 'receipt.bin').trim() || 'receipt.bin'
+  const mediaType = String(receipt?.media_type || receipt?.mediaType || blob.type || 'application/octet-stream')
+  const file = new File([blob], fileName, { type: mediaType })
+  Object.defineProperty(file, 'receiptId', {
+    value: String(receipt?.id || ''),
+    enumerable: false
+  })
+  return file
+}