Backoff Reconnect (#6358)

* Add a Stop command that does a bit of cleanup in the engineStateMachine

* Major network code startup refactor; backoff reconnect; many more logs for us

* Save camera state after every user interaction in case of disconnection and restoral

* Translate basic WebSocket error numbers into useful text

* Add a RestartRequest event to the engineCommandManager

* Adjust for a rebase

* Add E2E test for stream pause behavior

* Fix snapshot test

* fmt, lint

* small issue

* Fix tests

* Fix up idle test

* One last fix

* fixes

* Remove circ dep

* fix test

* use a const for time

* TEST -> isPlaywright instead

* whoops

src/components/ModelingMachineProvider.tsx

@@ -204,12 +204,13 @@ export const ModelingMachineProvider = ({
 
             sceneInfra.camControls.syncDirection = 'engineToClient'
 
+            // TODO: Re-evaluate if this pause/play logic is needed.
             store.videoElement?.pause()
 
             return kclManager
               .executeCode()
               .then(() => {
-                if (engineCommandManager.engineConnection?.idleMode) return
+                if (engineCommandManager.idleMode) return
 
                 store.videoElement?.play().catch((e) => {
                   console.warn('Video playing was prevented', e)