AXApplication
    |
    +-- AXMenuBar
           |
           +-- AXMenuBarItem (File, Edit, View...)
                   |
                   +-- AXMenu (container)
                           |
                           +-- AXMenuItem (with shortcuts, children)

use script_kit_gpui::menu_bar::{get_frontmost_menu_bar, get_menu_bar_for_pid};

// Read menu bar of current menu owner (not frontmost app!)
let items = get_frontmost_menu_bar()?;

// Read specific app's menu by PID
let items = get_menu_bar_for_pid(pid)?;

use script_kit_gpui::menu_executor::execute_menu_action;

// App MUST be frontmost for this to work
execute_menu_action("com.apple.Safari", &["File", "New Window"])?;

use script_kit_gpui::menu_cache::*;

init_menu_cache_db()?;  // Call once at startup

// Check cache first
if let Some(items) = get_cached_menu("com.apple.Safari")? {
    if is_cache_valid("com.apple.Safari", 3600)? {
        return Ok(items);
    }
}

// Scan and cache
let items = scan_menu_bar()?;
set_cached_menu("com.apple.Safari", &items, Some("17.0"))?;

// Path [0, 2] means: menu bar item at index 0, child at index 2
pub struct MenuBarItem {
    pub ax_element_path: Vec<usize>,
    // ...
}

pub struct KeyboardShortcut {
    pub key: String,           // "S", "N", "Q"
    pub modifiers: ModifierFlags,
}

// ModifierFlags uses bitflags
ModifierFlags::COMMAND  // 256 - Cmd
ModifierFlags::SHIFT    // 512 - Shift  
ModifierFlags::OPTION   // 2048 - Option
ModifierFlags::CONTROL  // 4096 - Control