Create access module package

src/govoplan_access/backend/db/base.py

@@ -0,0 +1,21 @@
+from __future__ import annotations
+
+from typing import Any
+
+from sqlalchemy import JSON, MetaData
+from sqlalchemy.orm import DeclarativeBase
+
+from govoplan_core.db.base import NAMING_CONVENTION, TimestampMixin, utcnow
+
+
+class AccessBase(DeclarativeBase):
+    metadata = MetaData(naming_convention=NAMING_CONVENTION)
+
+    type_annotation_map = {
+        dict[str, Any]: JSON,
+        list[dict[str, Any]]: JSON,
+        list[str]: JSON,
+    }
+
+
+__all__ = ["AccessBase", "NAMING_CONVENTION", "TimestampMixin", "utcnow"]