feat:新增接口

api/routers/holdings.py

@@ -0,0 +1,20 @@
+"""持仓路由：查询当前用户持仓（业务在 service/holdings.py，路由只做编排）。"""
+from fastapi import APIRouter, Depends
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from api.deps import get_current_user
+from config.deps import get_db
+from model.sys_user import SysUser
+from service import holdings as holdings_service
+from utils.response import success
+
+router = APIRouter()
+
+
+@router.get("/holdings", summary="查询当前用户持仓（持有中）")
+async def list_holdings(
+    user: SysUser = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    result = await holdings_service.get_holdings(db, user)
+    return success([h.model_dump(mode="json") for h in result])