initial livekit support

fix up code

undo changes to compose file

add back .env.example

crates/core/database/src/drivers/mongodb.rs

@@ -12,6 +12,7 @@ use serde::Serialize;
 database_derived!(
     #[cfg(feature = "mongodb")]
     /// MongoDB implementation
+    #[derive(Debug)]
     pub struct MongoDb(pub ::mongodb::Client, pub String);
 );