fix: implement debug for meta plugin program and remove unused imports

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

src/meta_plugin/system.rs

@@ -3,7 +3,6 @@ use gethostname::gethostname;
 use local_ip_address::local_ip;
 use dns_lookup::lookup_addr;
 use std::io;
-use std::io::Write;
 use std::env;
 use std::process;
 use uzers::{get_current_uid, get_current_gid, get_current_username, get_current_groupname};