refactor: Big internal refactor

xtask/src/main.rs

@@ -1,8 +1,8 @@
 use std::fs::File;
 use std::io::Write;
 
-use crete::cluster::OptionalCluster;
-use crete::node::OptionalNode;
+use crete::cluster::Cluster;
+use crete::node::Node;
 use repo_path::repo_path;
 use schemars::{JsonSchema, schema_for};
 
@@ -19,6 +19,6 @@ where
 }
 
 fn main() {
-    write::<OptionalCluster>("cluster");
-    write::<OptionalNode>("node");
+    write::<Cluster>("cluster");
+    write::<Node>("node");
 }