Add tagged VFS undo journal, host API, and world CLI

host/src/api/server.rs

@@ -1,5 +1,5 @@
 //! The host HTTP listener and console startup share one owned API and credentials store.
-use super::{Api, respond};
+use super::Api;
 use crate::cred::{Caller, Cred};
 use std::{net::SocketAddr, path::Path, sync::Arc};
 
@@ -37,6 +37,10 @@ impl Listener {
         );
         let serving = server.clone();
         let thread = std::thread::spawn(move || {
+            let runtime = tokio::runtime::Builder::new_current_thread()
+                .enable_all()
+                .build()
+                .expect("API runtime");
             for mut request in serving.incoming_requests() {
                 let response = (|| -> anyhow::Result<_> {
                     let mut body = Vec::new();
@@ -45,7 +49,7 @@ impl Listener {
                         .method(request.method().as_str())
                         .uri(request.url())
                         .body(bytes::Bytes::from(body))?;
-                    Ok(respond(
+                    Ok(runtime.block_on(super::handle(
                         &api,
                         Caller {
                             program: "/host/browser".into(),
@@ -53,7 +57,7 @@ impl Listener {
                             conversations: Vec::new(),
                         },
                         request,
-                    ))
+                    )))
                 })();
                 let response = response.unwrap_or_else(|_| {
                     http::Response::builder()