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。

server/src/app/services/agent_asset_onlyoffice.py

@@ -11,7 +11,8 @@ import jwt
 
 from app.api.deps import CurrentUserContext
 from app.core.config import get_settings
-from app.schemas.agent_asset import AgentAssetOnlyOfficeConfigRead
+from app.models.agent_asset import AgentAsset
+from app.schemas.agent_asset import AgentAssetOnlyOfficeConfigRead, AgentAssetRead
 from app.services.agent_asset_spreadsheet import (
     COMPANY_TRAVEL_EXPENSE_RULE_FILENAME,
     FINANCE_RULES_LIBRARY,
@@ -40,9 +41,7 @@ class OnlyOfficeCallbackPayload:
 class AgentAssetOnlyOfficeMixin:
     @staticmethod
     def _resolve_onlyoffice_settings():
-        from app.services import agent_assets
-
-        return agent_assets.resolve_onlyoffice_settings()
+        return resolve_onlyoffice_settings()
 
     def build_rule_spreadsheet_onlyoffice_config(
         self,