fix(bounce): offline render qua native bridge — bỏ gap realtime, thêm headroom, strip DIAG

app/static/js/services/audioRoutingEngine.js

@@ -24,7 +24,6 @@
       // Idempotent: updateSfRouting/ensureMasteringRouting chay tren MOI keydown/
       // note-on — neu da noi dung dest thi KHONG disconnect (disconnect flush ring
       // -> am phim dang vang bi cat). Chi doi khi dest/track thuc su khac.
-      if (window.__sfDiag) window.__sfDiag("ROUTE to=" + (trackId || "masterBus") + " prev=" + (this._trackId || "masterBus") + " bridgeReady=" + bridgeNode.isReady() + " conn=" + this._connected);
       if (this._connected && this._dest === dest && this._trackId === (trackId || null)) return true;
       if (!bridgeNode.isReady()) bridgeNode.init();
       bridgeNode.connect(dest);

app/static/js/services/bridgeAudioNode.js

@@ -15,9 +15,6 @@
   var _workletNode = null;
   var _ctx = null;
   var _initialized = false;
-  var _frames = 0;
-  var _peak = 0;
-  var _lastDiag = 0;
   var _useWorklet = false;
   var _dest = null; // destination gain node da noi (chong connect trung)
 
@@ -103,18 +100,7 @@
 
   function onAudio(l, r) {
     if (!_initialized) init();
-    if (!window.__baeAt || Date.now() - window.__baeAt >= 1000) { window.__baeAt = Date.now(); if (window.__sfDiag) window.__sfDiag('BRIDGE_AUDIO_ENTER len=' + (l ? l.length : -1)); }
     var blk = { l: new Float32Array(l), r: new Float32Array(r) };
-    _frames = (_frames || 0) + blk.l.length;
-    for (var _i = 0; _i < blk.l.length; _i++) {
-      var _a = Math.abs(blk.l[_i]); if (_a > (_peak || 0)) _peak = _a;
-      var _b = Math.abs(blk.r[_i]); if (_b > (_peak || 0)) _peak = _b;
-    }
-    if (!_lastDiag || Date.now() - _lastDiag >= 1000) {
-      _lastDiag = Date.now();
-      if (window.__sfDiag) window.__sfDiag("BRIDGE_AUDIO frames=" + _frames + " peak=" + (_peak ? (20 * Math.log10(_peak)).toFixed(1) : "-inf") + "dB path=" + (_useWorklet ? "worklet" : (_preBuffer.length ? "preBuffer" : "chunks")));
-      _peak = 0;
-    }
     if (_useWorklet && _workletNode) {
       _workletNode.port.postMessage({ type: 'audio', l: blk.l, r: blk.r });
       return;

app/static/js/services/nativeBridgeService.js

@@ -54,7 +54,6 @@
       var self = this;
       try {
         window.__TAURI__.event.listen('bridge-audio', function (e) {
-          if (!self._evtDiagAt || Date.now() - self._evtDiagAt >= 1000) { self._evtDiagAt = Date.now(); if (window.__sfDiag) window.__sfDiag('BRIDGE_EVT_RX cb=' + (self._audioCb ? 'yes' : 'no') + ' len=' + (e.payload && e.payload.l ? e.payload.l.length : 0)); }
           // Bridge recovered after bridge-down (or never bootstrapped):
           // audio frames flow again -> re-establish routing (Fix C).
           if (!self.isBridgeConnected) self._reconnectIfNeeded();
@@ -72,7 +71,6 @@
           if (window.AudioRoutingEngine) window.AudioRoutingEngine.disconnect();
           console.warn('[BridgeService] bridge-down event received.');
         });
-        if (window.__sfDiag) window.__sfDiag('EVT_REG ok');
       } catch (e) {
         console.warn('[BridgeService] event listen failed:', e);
       }
@@ -126,8 +124,6 @@
      * data2/data3 (A12): CC value / program / PB LSB|MSB.
      */
     dispatchMidiEvent: function (cmd, channel, pitch, velocity, sampleOffset, data2, data3, live) {
-      this._pushEnter = (this._pushEnter || 0) + 1;
-      if (this._pushEnter % 100 === 0 && window.__sfDiag) window.__sfDiag('PUSH_ENTER cmd=' + cmd + ' ch=' + channel + ' tauri=' + !!this._tauri());
       if (!this._tauri()) return false;
       var safeVelocity = Math.floor(Math.min(1.0, Math.max(0.0, velocity)) * 127);
       var byteCmd;
@@ -137,8 +133,6 @@
         case 'PITCH_BEND': byteCmd = 0xE; break;
         default:          byteCmd = cmd === 'NOTE_ON' ? 0x9 : 0x8; break;
       }
-      this._pushSent = (this._pushSent || 0) + 1;
-      if (this._pushSent % 100 === 0 && window.__sfDiag) window.__sfDiag('PUSH_SENT ' + this._pushSent);
       // DIAG: Promise.race 800ms — invoke gửi đi nhưng không settle -> timeout
       // (phan biet main-thread block vs Rust hang).
       Promise.race([
@@ -153,12 +147,7 @@
           live: !!live
         }),
         new Promise(function (_, rej) { setTimeout(function () { rej(new Error('timeout-800ms')); }, 800); })
-      ]).then(function () {
-        this._pushOk = (this._pushOk || 0) + 1;
-        if ((_pushOk + (_pushFail || 0)) % 100 === 0 && window.__sfDiag) window.__sfDiag('PUSH_MIDI ok=' + _pushOk + ' fail=' + (_pushFail || 0));
-      }).catch(function (e) {
-        this._pushFail = (this._pushFail || 0) + 1;
-        if (_lastPushFail !== String(e)) { _lastPushFail = String(e); if (window.__sfDiag) window.__sfDiag('PUSH_MIDI_FAIL ' + e); }
+      ]).catch(function (e) {
         console.warn('[BridgeService] push_midi_event:', e);
       });
       return true;

app/static/js/services/unifiedMidiRouter.js

@@ -56,13 +56,10 @@
       var sampleOffset = opts.sampleOffset || 0;
       if (typeof ch === 'string') ch = this.allocateChannel(ch, opts.percussion);
       if (ch === undefined || ch === null) ch = 0;
-      this._pushEvt = (this._pushEvt || 0) + 1;
-      if (this._pushEvt % 100 === 0 && window.__sfDiag) window.__sfDiag('PUSH_ROUTE cmd=' + cmd + ' ch=' + ch + ' brAct=' + this.isBridgeActive() + ' nbs=' + !!window.NativeBridgeService + ' tauri=' + !!(window.__TAURI__));
       if (this.isBridgeActive()) {
         window.NativeBridgeService.dispatchMidiEvent(cmd, ch, pitch, vel, sampleOffset, opts.data2, opts.data3, opts.live);
         return;
       }
-      if (this._pushEvt % 100 === 0 && window.__sfDiag) window.__sfDiag('PUSH_FALLBACK cmd=' + cmd + ' ch=' + ch);
       if (this.onFallback) this.onFallback(cmd, ch, pitch, vel);
     },