fix: update trait and remove unused io imports

Co-authored-by: aider (openai/andrew/openrouter/qwen/qwen3-coder) <aider@aider.chat>

src/meta_plugin/system.rs

@@ -2,7 +2,6 @@ use anyhow::Result;
 use gethostname::gethostname;
 use local_ip_address::local_ip;
 use dns_lookup::lookup_addr;
-use std::io;
 use std::env;
 use std::process;
 use uzers::{get_current_uid, get_current_gid, get_current_username, get_current_groupname};