initial commit after split

src/govoplan_core/db/migrate.py

@@ -0,0 +1,14 @@
+from __future__ import annotations
+
+from govoplan_core.db.migrations import migrate_database
+
+
+def main() -> None:
+    result = migrate_database()
+    if result.reconciled_revision:
+        print(f"Reconciled legacy database marker to {result.reconciled_revision}.")
+    print(f"Database schema upgraded to {result.current_revision}.")
+
+
+if __name__ == "__main__":
+    main()