use crate::legacy_core::config::Config;use codex_features::Feature;pub(crate) const TERMINAL_VISUALIZATION_INSTRUCTIONS: &str = "\- This surface is a terminal. When the formatting rules require a visual, include one in the final answer using compact ASCII diagrams, trees, timelines, or tables.- Use tables for exact mappings or comparisons rather than collapsing known mappings into prose.- Use trees for hierarchy or one-to-many relationships, and diagrams or timelines for sequence, change, or state transferred between records across event order.- Use only ASCII characters in visuals.";pub(crate) fn with_terminal_visualization_instructions(    config: &Config,    control_instructions: Option<String>,) -> Option<String> {    if !config        .features        .enabled(Feature::TerminalVisualizationInstructions)    {        return control_instructions;    }    let existing_instructions =        control_instructions.or_else(|| config.developer_instructions.clone());    Some(match existing_instructions.as_deref() {        Some(existing) if !existing.trim().is_empty() => {            format!("{existing}\n\n{TERMINAL_VISUALIZATION_INSTRUCTIONS}")        }        _ => TERMINAL_VISUALIZATION_INSTRUCTIONS.to_string(),    })}