feat: add standards wiki, MCP registry, and app template

templates/app/infra/db/setup.py

@@ -0,0 +1,23 @@
+"""# Summary
+
+Database setup — connection lifecycle only. No domain imports.
+
+Connect and disconnect the shared Mongo connection manager at application
+startup and shutdown.
+"""
+from mongo_ops import MongoConnectionManager
+
+
+async def setup_database(uri: str, db_name: str):
+    """Connect the shared Mongo connection manager.
+
+    Args:
+        uri (str): Mongo connection URI.
+        db_name (str): Target database name.
+    """
+    await MongoConnectionManager.connect(uri=uri, db_name=db_name)
+
+
+async def shutdown_database():
+    """Disconnect the shared Mongo connection manager."""
+    await MongoConnectionManager.disconnect()