refactor(client): expose loopback state through connection

packages/client/runtime/tests/client-apply.spec.ts

@@ -26,6 +26,7 @@ async function mount(): Promise<Bench> {
   const bench: Bench = { ctx, api, sinks: undefined, stopped: 0 }
   const handle: ConnectionHandle = {
     api,
+    isLoopback: true,
     start: (sinks) => {
       bench.sinks = sinks
       return { stop: () => { bench.stopped += 1 } }

packages/client/runtime/tests/wire-events.spec.ts

@@ -20,6 +20,7 @@ async function mount(): Promise<Bench> {
   const bench: Bench = { ctx, sinks: undefined }
   const handle: ConnectionHandle = {
     api,
+    isLoopback: true,
     start: (sinks) => {
       bench.sinks = sinks
       return { stop: () => {} }