feat: Visual tuner with mute — Tuner.jsx, pipeline pitch detection, status bar toggle

src/App.jsx

@@ -747,6 +747,8 @@ export default function App(){
             onBankDown={handleBankDown}
             onGlobalBypass={handleGlobalBypass}
             globalBypass={globalBypass}
+            onTunerToggle={handleTunerToggle}
+            tunerEnabled={state.tuner_enabled}
             onPresetClick={(idx)=>{const p=currentBankPresets[parseInt(idx)];if(p)handleLoadPreset(p.bank,p.num-1);}}
           />
         </>

src/FootswitchBar.jsx

@@ -143,6 +143,8 @@ export default function FootswitchBar({
   onBankDown,
   onGlobalBypass,
   globalBypass,
+  onTunerToggle,
+  tunerEnabled,
   onPresetClick,
   onSnapshotClick,
 }) {