docs(chat): tighten ActiveChatStreamRunner comment to intent

surfsense_web/components/chat/active-chat-stream-runner.tsx

@@ -4,19 +4,13 @@ import { useEffect } from "react";
 import { chatStreamStore } from "@/lib/chat/stream-engine/store";
 
 /**
- * Persistent, render-null host for app-wide chat-stream lifecycle.
+ * Persistent, render-null host that scopes the in-flight chat turn's lifetime
+ * to the workspace shell, not the chat page.
  *
- * Mounted in the workspace shell (``LayoutDataProvider``), it persists across
+ * Mounted in ``LayoutDataProvider``, it survives in-app navigation between
- * in-app navigation between workspace routes (``/new-chat`` -> ``/chats`` ->
+ * workspace routes and aborts the single active turn only on workspace/app
- * ``/automations`` and doc-tab switches) and only unmounts on real teardown
+ * teardown, so ordinary navigation disconnects the view without stopping the
- * (workspace change / app teardown). On that teardown it aborts the single
+ * stream.
- * in-flight turn — this replaces the old chat-page unmount abort, which was
- * what killed streams on ordinary navigation.
- *
- * NOTE: the ``hitl-decision`` bridge and ``useChatSessionStateSync`` stay in
- * the chat page: both need the currently-viewed thread id (HITL resume can
- * only be triggered from the page's approval UI), which the shell-level runner
- * does not cleanly have.
  */
 export function ActiveChatStreamRunner() {
 	useEffect(() => {