fix: use deref to access output slice in audio copy

Co-authored-by: aider (deepseek/deepseek-coder) <aider@aider.chat>

src/lib.rs

@@ -121,7 +121,7 @@ impl Plugin for ClipLauncher {
 
         // Copy back to buffer's output channels
         for (ch, channel_samples) in buffer.iter_samples().enumerate() {
-            let output = channel_samples.outputs();
+            let (_, output) = *channel_samples;
             for frame in 0..num_frames {
                 output[frame] = interleaved_output[frame * num_channels + ch];
             }