fix: inherit parent session tool restrictions in background task notifications

Pass parentTools from session-tools-store through the background task
lifecycle (launch → task → notify) so that when notifyParentSession
sends promptAsync, the original tool restrictions (e.g., question: false)
are preserved. This prevents the Question tool from re-enabling after
call_omo_agent background tasks complete.

src/features/background-agent/spawner/task-factory.ts

@@ -13,6 +13,7 @@ export function createTask(input: LaunchInput): BackgroundTask {
     parentMessageID: input.parentMessageID,
     parentModel: input.parentModel,
     parentAgent: input.parentAgent,
+    parentTools: input.parentTools,
     model: input.model,
   }
 }