Function find_faf_file 

pub fn find_faf_file<P: AsRef<Path>>(start_dir: Option<P>) -> Option<PathBuf>

Find FAF file starting from given directory, walking up to parents

Searches for project.faf (modern) or .faf (legacy) in the starting directory and up to 10 parent directories.

Example

use faf_kernel::find_faf_file;
use std::path::PathBuf;

// Search from current directory
if let Some(path) = find_faf_file::<PathBuf>(None) {
    println!("Found FAF at: {}", path.display());
}

// Search from specific directory
if let Some(path) = find_faf_file(Some("/path/to/project")) {
    println!("Found FAF at: {}", path.display());
}