Function get_lockout_info 

pub fn get_lockout_info(
    username: &str,
) -> (bool, Option<SystemTime>, Option<u32>)

What: Check faillock status and calculate lockout information for display.

Inputs:

• username: Username to check.

Output:

• Tuple of (is_locked, lockout_until, remaining_minutes).

Details:

• Checks faillock status and calculates remaining lockout time if locked.
• Returns lockout information for UI display.