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。

server/src/app/api/v1/endpoints/reimbursements.py

@@ -2,7 +2,7 @@ from __future__ import annotations
 
 from typing import Annotated
 
-from fastapi import APIRouter, Depends, File, HTTPException, UploadFile, status
+from fastapi import APIRouter, Depends, File, Form, HTTPException, UploadFile, status
 from fastapi.responses import FileResponse
 from sqlalchemy.orm import Session
 
@@ -372,6 +372,7 @@ async def upload_expense_claim_item_attachment(
     file: Annotated[UploadFile, File(description="待上传的附件文件。")],
     db: DbSession,
     current_user: CurrentUser,
+    receipt_id: Annotated[str | None, Form(description="可选，来源于票据夹的持久化票据 ID。")] = None,
 ) -> ExpenseClaimAttachmentActionResponse:
     service = ExpenseClaimService(db)
     try:
@@ -382,6 +383,7 @@ async def upload_expense_claim_item_attachment(
             content=await file.read(),
             media_type=file.content_type,
             current_user=current_user,
+            source_receipt_id=receipt_id or "",
         )
     except LookupError as error:
         raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail=str(error)) from error