Function register_repl_mode_actions 

pub fn register_repl_mode_actions(registry: &mut CommandRegistry)

Register the action:repl-focus-input command so the mode’s keymap cmd name resolves at boot (the register_ai_conversation_actions pattern). The apply body is a dead Effect::None: the mode’s action_handlers closure intercepts before the grammar Action gate, so this never runs. It exists so the CommandId resolves for the chord binding + handler registration.