Function create_fully_masked_pattern

src/utils/mask.rs:156–160

Create a fully masked pattern by replacing all digits with dots

(pattern: &str)

/// Create a fully masked pattern by replacing all digits with dots
fn create_fully_masked_pattern(pattern: &str) -> String {
    pattern.chars()
        .map(|c| if c.is_digit(10) { '•' } else { c })
        .collect()
}

// Extract visible country code from an international format masked phone number
fn extract_visible_country_code(masked_phone: &str) -> String {