fix ver

src/main.rs

@@ -74,6 +74,14 @@ const LOGO: &str = "\
 ⠀⠀⠈⠁⠀⠀⠀⠀⠀⠀⠉⠛⠿⠿⠿⠿⠿⠿⠛⠉⠀⠀⠀⠀⠀⠀⠈⠁⠀⠀";
 
 fn main() {
+    // aishell v → print version and exit
+    if let Some(arg) = env::args().nth(1) {
+        if arg == "v" || arg == "version" || arg == "--version" || arg == "-v" {
+            println!("{}", env!("CARGO_PKG_VERSION"));
+            return;
+        }
+    }
+
     let status = Arc::new(std::sync::Mutex::new(StatusBar::new()));
     println!("\x1b[38;5;226m{}\x1b[0m\n\x1b[1m  aishell\x1b[0m v{}", LOGO, env!("CARGO_PKG_VERSION"));
     show_accounts();