feat:新增投顾工作台相关接口

repositories/sys_message.py

@@ -0,0 +1,24 @@
+"""sys_message 站内信仓储（投顾触达客户，发送报告时写入）。"""
+from __future__ import annotations
+
+from sqlalchemy import select
+
+from model.sys_message import SysMessage
+from repositories.base import BaseRepository
+
+
+class SysMessageRepo(BaseRepository):
+    model = SysMessage
+
+    async def list_by_user(
+        self, user_id: int, limit: int = 100, offset: int = 0
+    ) -> list[SysMessage]:
+        """某用户（客户）的站内信，倒序分页。"""
+        stmt = (
+            select(SysMessage)
+            .where(SysMessage.user_id == user_id)
+            .order_by(SysMessage.id.desc())
+            .limit(limit)
+            .offset(offset)
+        )
+        return list((await self.db.scalars(stmt)).all())