Feat: no console in bg and plugin fix

plugins/cagire-plugins/src/lib.rs

@@ -328,6 +328,11 @@ impl Plugin for CagirePlugin {
                 AudioCommand::LoadSamples(samples) => {
                     engine.sample_index.extend(samples);
                 }
+                AudioCommand::LoadSoundfont(path) => {
+                    if let Err(e) = engine.load_soundfont(&path) {
+                        eprintln!("Failed to load soundfont: {e}");
+                    }
+                }
             }
         }