Function SystemMessageAt

pkg/session/session.go:327–335

SystemMessageAt is like SystemMessage but stamps the message with an explicit creation time, letting callers (and tests) avoid the wall clock.

(createdAt time.Time, content string)

// SystemMessageAt is like SystemMessage but stamps the message with an explicit
// creation time, letting callers (and tests) avoid the wall clock.
func SystemMessageAt(createdAt time.Time, content string) *Message {
	return &Message{
		Message: chat.Message{
			Role:      chat.MessageRoleSystem,
			Content:   content,
			CreatedAt: createdAt.Format(time.RFC3339),
		},
	}
}

// Helper functions for creating SessionItems