fix: 补齐 ATX 控制器缺失接口并完成全项目 clippy -D warnings 修复

src/audio/device.rs

@@ -85,9 +85,7 @@ pub fn enumerate_audio_devices_with_current(
     let mut devices = Vec::new();
 
     // Try to enumerate cards
-    let cards = match alsa::card::Iter::new() {
-        i => i,
-    };
+    let cards = alsa::card::Iter::new();
 
     for card_result in cards {
         let card = match card_result {