Synthetic subagent-completion nudges were treated as the latest user model choice and rehydrated the agent default, while setAgent preferred the agent pin over the session override. Skip synthetic prompts for restore, preserve manual selection-store overrides, and prefer session agent models in setAgent. Closes openchamber/openchamber#2404 Co-authored-by: Serhii Dziupin <makeittech@users.noreply.github.com>