Fix bypass JSON bool + load SF2 tracks into bridge on restore

- RenderFxJob: parse bypass as JSON bool (memberBool) — bypass:true
  previously ignored (memberInt parses numbers only), plugin kept
  processing. Verified: bypass RMS == plain, VST3 loaded once.
- preloadTrackInstruments / bridge reconnect: load SF2 instruments
  into bridge too (loadAnyTrackToBridge) — opened projects with SF2
  tracks sent MIDI to empty bridge channels (C++ silent), never
  reaching the native mastering chain.
- rebuild app.precompiled.js from app.jsx (was stale: missing A14).

app/static/js/app.jsx

@@ -6610,6 +6610,36 @@ const loadVstToBridge = async (track) => {
     return !!ok;
   } catch (e) { console.warn('[Bridge] loadVstToBridge fail:', track.id, e); return false; }
 };
+// D12: load track instrument (VST *hoặc* SF2) vào bridge. preloadTrackInstruments
+// trước đây chỉ load VST → mở project có SF2 track + bridge active → MIDI tới
+// channel bridge rỗng → C++ silent (không qua mastering chain native).
+const loadAnyTrackToBridge = async (track) => {
+  if (!window.NativeBridgeService || !window.SonicMidiRouter || !window.SonicMidiRouter.isBridgeActive()) return false;
+  const inst = track.instrumentId || (track.synth_engine && track.synth_engine.plugin_id);
+  if (!inst) return false;
+  if (typeof inst === 'string' && inst.startsWith('sf_')) {
+    const se = track.synth_engine || {};
+    const bank = se.soundfont_bank !== undefined ? se.soundfont_bank : (track.soundfont_bank !== undefined ? track.soundfont_bank : 0);
+    const bch = window.SonicMidiRouter.allocateChannel(track.id || track.trackId, bank === 128);
+    try {
+      const sfId = inst.replace('sf_', '');
+      let bpath = null;
+      try {
+        const pl = await window.SonicAPI.listPlugins();
+        const s0 = ((pl && pl.soundfonts) || []).find(s => String(s.id).replace('sf_', '') === sfId);
+        bpath = s0 && (s0.file || s0.path);
+      } catch (e) {}
+      const r = await window.SonicAPI.bridgeLoad({ name: inst, path: bpath || null, instrumentType: 'SF2', channel: bch });
+      const p = r && r.path ? r.path : null;
+      if (!p) { console.warn('[Bridge] SF2 resolve fail:', track.id, inst); return false; }
+      const ok = await window.NativeBridgeService.loadInstrument(p, 'SF2', bch);
+      if (ok) { if (!window.__bridgeLoadedChannels) window.__bridgeLoadedChannels = {}; window.__bridgeLoadedChannels[bch] = true; if (!window.__bridgeLoadedPaths) window.__bridgeLoadedPaths = {}; window.__bridgeLoadedPaths[bch] = p; }
+      console.log('[Bridge] preload SF2 track', track.id, '-> ch', bch, ok ? 'OK' : 'FAIL', p);
+      return !!ok;
+    } catch (e) { console.warn('[Bridge] preload SF2 fail:', track.id, e); return false; }
+  }
+  try { return await loadVstToBridge(track); } catch (e) { return false; }
+};
 const ensureAndOpenVstGui = async (track) => {
   const trackId = track.id || track.trackId;
   const instrumentId = track.instrumentId || (track.synth_engine && track.synth_engine.plugin_id);
@@ -6730,8 +6760,8 @@ const preloadTrackInstruments = async (tracks) => {
     for (let i = 0; i < list.length; i++) {
       const t = list[i];
       const inst = t.instrumentId || (t.synth_engine && t.synth_engine.plugin_id);
-      if (!inst || (typeof inst === 'string' && inst.startsWith('sf_'))) continue;
-      try { await loadVstToBridge(t); } catch (e) {}
+      if (!inst) continue;
+      try { await loadAnyTrackToBridge(t); } catch (e) {}
     }
   }
 };
@@ -18136,8 +18166,8 @@ const App = () => {
         for (let i = 0; i < _tl.length; i++) {
           const _t = _tl[i];
           const _inst = _t.instrumentId || (_t.synth_engine && _t.synth_engine.plugin_id);
-          if (!_inst || (typeof _inst === 'string' && _inst.startsWith('sf_'))) continue;
-          loadVstToBridge(_t).catch(function () {});
+          if (!_inst) continue;
+          loadAnyTrackToBridge(_t).catch(function () {});
         }
       } catch (e) { console.warn('[Bridge] reconnect reload fail:', e); }
     });

native_bridge/src/RenderFxJob.cpp

@@ -1104,7 +1104,7 @@ std::shared_ptr<RealtimeFxChain::Impl::Chain> RealtimeFxChain::Impl::buildChain(
         const std::string path = memberString(o, "path", "");
         if (path.empty()) continue;
         Entry ent;
-        ent.bypass = memberInt(o, "bypass", 0) != 0;
+        ent.bypass = memberBool(o, "bypass", false);
         if (!ent.bypass) {
             auto fx = std::make_shared<Vst3Fx>();
             if (fx->load(path, sampleRate_, blockSize_)) {