feat: Initial rewrite of python render tool

xtask/src/main.rs

@@ -0,0 +1,24 @@
+use std::fs::File;
+use std::io::Write;
+
+use crete::cluster::OptionalCluster;
+use crete::node::OptionalNode;
+use repo_path::repo_path;
+use schemars::{JsonSchema, schema_for};
+
+fn write<T>(name: &str)
+where
+    T: JsonSchema,
+{
+    let mut path = repo_path!("schemas").join(name);
+    path.add_extension("json");
+    let mut file = File::create(path).unwrap();
+
+    let schema = serde_json::to_string_pretty(&schema_for!(T)).unwrap();
+    file.write_all(schema.as_bytes()).unwrap();
+}
+
+fn main() {
+    write::<OptionalCluster>("cluster");
+    write::<OptionalNode>("node");
+}