refactor(user): refactor user database

**Breaking Change**

用户表变为 lazer_users

建议删除与用户关联的表进行迁移

app/models/model.py

@@ -0,0 +1,15 @@
+from __future__ import annotations
+
+from datetime import UTC, datetime
+
+from pydantic import BaseModel, field_serializer
+
+
+class UTCBaseModel(BaseModel):
+    @field_serializer("*", when_used="json")
+    def serialize_datetime(self, v, _info):
+        if isinstance(v, datetime):
+            if v.tzinfo is None:
+                v = v.replace(tzinfo=UTC)
+            return v.astimezone(UTC).isoformat()
+        return v