fix(cli): gate OnceLock import behind linux cfg

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src-tauri/src/cli.rs

@@ -5,6 +5,7 @@ const COMPLETIONS_BASH: &str = include_str!(concat!(env!("CARGO_MANIFEST_DIR"),
 const COMPLETIONS_ZSH: &str = include_str!(concat!(env!("CARGO_MANIFEST_DIR"), "/../completions/_psysonic"));
 
 use std::path::PathBuf;
+#[cfg(target_os = "linux")]
 use std::sync::OnceLock;
 use std::time::{Duration, Instant};