Function file 

pub fn file(path: &str, delay_ms: u64)

Prints each line from a file with optional delay.

Behavior:

• On open/read failure, logs a themed error via print::error and returns (no panic).
• delay_ms controls a fixed delay between lines.

Example (ignore in doctest):

use modcli::output::print;
print::file("./examples/banner.txt", 0);