FIX 3 van de Windows:

1. LOAD CHAM: PyInstaller onefile 723MB giai nen toan bo vao %TEMP% moi lan chay -> chuyen ONEDIR (engine.spec COLLECT) + bundle qua Tauri resources (resource_dir/daw_engine/daw_engine.exe) thay externalBin — khoi dong tuc thi khong giai nen
2. WINDOW PICKER: Tauri v2 khong co window.__TAURI__.dialog — goi invoke('plugin:dialog|open', {options:{directory:true}}) qua __TAURI__.core.invoke
3. ICON exe: bundle.icon chuyen icon.ico -> favicon.ico + thay 3 PNG bang favicon render
- build_windows.ps1 buoc 4: copy onedir dist/daw_engine -> src-tauri/resources/daw_engine

build_windows.ps1

@@ -50,9 +50,19 @@ if ($LASTEXITCODE -ne 0) {
   exit 1
 }
 
-Write-Host "== [4/6] Sidecar binary -> src-tauri/binaries (tauri triple naming) =="
-New-Item -ItemType Directory -Force src-tauri\binaries | Out-Null
-Copy-Item dist\daw_engine.exe src-tauri\binaries\daw_engine-x86_64-pc-windows-msvc.exe -Force
+Write-Host "== [4/6] ONEDIR engine -> src-tauri/resources/daw_engine (Tauri resources) =="
+# ONEDIR: copy ca thu muc dist\daw_engine\ (exe + _internal) vao resources.
+# Tauri bundle resources -> resource_dir()/daw_engine/daw_engine.exe luc runtime.
+if (-not (Test-Path "dist\daw_engine\daw_engine.exe")) {
+  Write-Host "ERROR: dist\daw_engine\daw_engine.exe khong ton tai (onedir build loi?)" -ForegroundColor Red
+  exit 1
+}
+if (Test-Path "src-tauri\resources\daw_engine") {
+  Remove-Item -Recurse -Force "src-tauri\resources\daw_engine"
+}
+New-Item -ItemType Directory -Force "src-tauri\resources\daw_engine" | Out-Null
+Copy-Item "dist\daw_engine\*" "src-tauri\resources\daw_engine\" -Recurse -Force
+Write-Host "Copied onedir engine -> src-tauri\resources\daw_engine"
 
 Write-Host "== [5/6] VC++ Redistributable cho hooks.nsh =="
 if (-not (Test-Path src-tauri\vc_redist.x64.exe)) {