Function discover_subcommand_hierarchy 

pub async fn discover_subcommand_hierarchy(
    program: &str,
    config: &ProbeConfig,
    max_depth: usize,
) -> Result<Vec<SubcommandSpec>>

Recursively discover subcommand hierarchy by probing each subcommand.

This function probes each subcommand to discover:

• Subcommand-specific options
• Subcommand-specific arguments
• Nested subcommands

Arguments

• program - The command to probe
• config - Configuration for probing
• max_depth - Maximum depth to recurse (prevents infinite loops)