Add Cloudron packaging for Maubot

maubot-src/maubot/db/__init__.py

@@ -0,0 +1,13 @@
+from mautrix.util.async_db import Database
+
+from .client import Client
+from .instance import DatabaseEngine, Instance
+from .upgrade import upgrade_table
+
+
+def init(db: Database) -> None:
+    for table in (Client, Instance):
+        table.db = db
+
+
+__all__ = ["upgrade_table", "init", "Client", "Instance", "DatabaseEngine"]