from pathlib import Path
from typing import List


def scan_auth_tokens_directory(dir_path: str):
    path = Path(dir_path).expanduser().resolve()
    
    if not path.exists():
        path = Path.cwd() / dir_path
        if not path.exists():
            raise FileNotFoundError(f"Path not found: {dir_path}")
    
    if path.is_file():
        return [path]
    
    token_files = list(path.glob('*.txt'))
    return sorted(token_files)


def read_auth_tokens_from_file(file_path: Path) -> List[tuple]:
    try:
        content = file_path.read_text(encoding='utf-8').strip()
        tokens = []
        for line_num, line in enumerate(content.split('\n'), start=1):
            line = line.strip()
            if line:
                tokens.append((line_num, line))
        return tokens
    except Exception:
        return []