fix(midi): playback khong cam loop pass 2+ va note cung pitch khong bi cat (bugs 1-2) - set isPlayingRef truoc bridge PLAY (startTrackPlayback/local/piano-roll), cancel STOP#2 retry khi loop restart; dedupe NOTE_OFF theo channel:pitch (pendingNoteOffMap + scheduleNoteOff) de NOTE_OFF tre (dur+30ms) khong cat note-on cung pitch ke tiep (bar lien nhau, piano roll note chong), clear map khi stop; sync 5 ban JS + index.html ?v=202608181807, rebuild exe release

src-tauri/src/lib.rs

@@ -754,6 +754,41 @@ struct BridgeStatus {
     shm_size_bytes: usize,
     sample_rate: u32,
     block_size: u32,
+    // V10: channel -> path mà C++ đã load/restore (bridge_state.json). JS dùng
+    // làm nguồn sự thật khi webview không load được qua HTTP (token hết hạn /
+    // listPlugins thiếu path) — C++ restore độc lập nên GUI vẫn mở được.
+    loaded_channels: Vec<BridgeLoadedChannel>,
+}
+
+#[derive(serde::Serialize)]
+struct BridgeLoadedChannel {
+    channel: u32,
+    path: String,
+}
+
+#[derive(serde::Deserialize)]
+struct BridgeStateFile {
+    #[serde(default)]
+    instruments: Vec<BridgeStateInstrument>,
+}
+
+#[derive(serde::Deserialize)]
+struct BridgeStateInstrument {
+    channel: u32,
+    path: String,
+}
+
+/// %APPDATA%/SonicForgeDAW/state/bridge_state.json — C++ StateStore::save ghi
+/// mỗi ~2s khi có instrument + khi DUMP_STATE lúc pre-kill (main.cpp G2.1).
+fn read_bridge_loaded_channels() -> Vec<BridgeLoadedChannel> {
+    let Some(appdata) = std::env::var("APPDATA").ok() else { return Vec::new() };
+    let path = Path::new(&appdata).join("SonicForgeDAW").join("state").join("bridge_state.json");
+    let Ok(raw) = std::fs::read_to_string(&path) else { return Vec::new() };
+    let Ok(state): Result<BridgeStateFile, _> = serde_json::from_str(&raw) else { return Vec::new() };
+    state.instruments
+        .iter()
+        .map(|i| BridgeLoadedChannel { channel: i.channel, path: i.path.clone() })
+        .collect()
 }
 
 /// %APPDATA%/SonicForgeDAW/ipc — cùng dir engine (plugins.py) đọc cho
@@ -767,7 +802,7 @@ fn bridge_ipc_dir() -> Option<PathBuf> {
 fn bridge_status(app: AppHandle) -> Result<BridgeStatus, String> {
     let state = app.state::<ShmState>();
     let guard = state.0.lock().map_err(|e| e.to_string())?;
-    let status = match guard.as_ref() {
+    let mut status = match guard.as_ref() {
         Some(shm) => BridgeStatus {
             connected: true,
             shm_name: shm::shm_name(),
@@ -780,6 +815,7 @@ fn bridge_status(app: AppHandle) -> Result<BridgeStatus, String> {
                 *g
             },
             block_size: shm::AUDIO_BLOCK_SIZE as u32,
+            loaded_channels: Vec::new(),
         },
         None => BridgeStatus {
             connected: false,
@@ -789,8 +825,11 @@ fn bridge_status(app: AppHandle) -> Result<BridgeStatus, String> {
             shm_size_bytes: 0,
             sample_rate: 0,
             block_size: 0,
+            loaded_channels: Vec::new(),
         },
     };
+    // V10: C++ loaded channels (state file) — không phụ thuộc HTTP/auth.
+    status.loaded_channels = read_bridge_loaded_channels();
     // E1: ghi JSON → engine /api/v1/bridge/status (badge Plugin Manager phải
     // phản ánh đúng bridge thật — trước đây file không tồn tại → luôn OFF).
     if let Some(dir) = bridge_ipc_dir() {