feat: add OpenVINO NPU worker support and frontend UI components for model management and image generation

scripts/setup-openvino-npu.ps1

@@ -0,0 +1,46 @@
+# Optional OpenVINO NPU setup for Intel AI Boost systems.
+# This does not modify the existing stable-diffusion.cpp backends.
+
+$ErrorActionPreference = "Stop"
+
+$scriptDir = Split-Path -Parent $MyInvocation.MyCommand.Path
+$rootDir = Split-Path -Parent $scriptDir
+$venvDir = Join-Path $rootDir "app\tools\openvino-venv"
+$pythonExe = Join-Path $venvDir "Scripts\python.exe"
+
+Write-Host ""
+Write-Host "  ============================================================"
+Write-Host "   Local AI Image Generator - OpenVINO NPU Setup"
+Write-Host "  ============================================================"
+Write-Host ""
+
+$npu = Get-CimInstance Win32_PnPEntity -ErrorAction SilentlyContinue |
+  Where-Object { $_.Name -like "*Intel(R) AI Boost*" -or ($_.Name -match "NPU" -and $_.PNPClass -eq "ComputeAccelerator") } |
+  Select-Object -First 1
+
+if (-not $npu) {
+  Write-Host "  [ERROR] Intel AI Boost NPU was not detected on this system." -ForegroundColor Red
+  exit 1
+}
+
+Write-Host "  Detected: $($npu.Name)"
+
+if (-not (Test-Path $pythonExe)) {
+  Write-Host "  Creating Python environment: $venvDir"
+  python -m venv $venvDir
+}
+
+Write-Host "  Installing OpenVINO GenAI runtime..."
+& $pythonExe -m pip install --upgrade pip
+& $pythonExe -m pip install openvino openvino-genai pillow huggingface-hub
+
+Write-Host ""
+Write-Host "  Verifying OpenVINO NPU device..."
+& $pythonExe -c "import openvino as ov; core=ov.Core(); print('Available devices:', core.available_devices); raise SystemExit(0 if 'NPU' in core.available_devices else 2)"
+
+Write-Host ""
+Write-Host "  ============================================================"
+Write-Host "   OpenVINO NPU setup complete."
+Write-Host "   Restart windows.bat, then download an OpenVINO NPU model."
+Write-Host "  ============================================================"
+Write-Host ""