Add PowerShell script to generate oil portrait

scripts/run_generate_portrait.ps1

@@ -0,0 +1,94 @@
+# Run this from a PowerShell prompt in the repository root.
+# Usage: Open PowerShell as Administrator (if needed) and run:
+#   .\scripts\run_generate_portrait.ps1
+
+Set-StrictMode -Version Latest
+
+function Check-Python {
+    $py = Get-Command python -ErrorAction SilentlyContinue
+    if (-not $py) {
+        Write-Error "Python not found. Install Python 3.10+ from https://www.python.org/downloads/ and re-run this script."
+        exit 1
+    }
+    return $py.Path
+}
+
+$python = Check-Python
+$venvDir = ".\.venv"
+
+if (-not (Test-Path $venvDir)) {
+    Write-Host "Creating virtual environment in $venvDir..."
+    & $python -m venv $venvDir
+} else {
+    Write-Host "Using existing virtual environment: $venvDir"
+}
+
+$venvPython = Join-Path $venvDir "Scripts\python.exe"
+$activateScript = Join-Path $venvDir "Scripts\Activate.ps1"
+
+if (-not (Test-Path $venvPython)) {
+    Write-Error "Virtualenv python not found at $venvPython"
+    exit 1
+}
+
+Write-Host "Upgrading pip in venv..."
+& $venvPython -m pip install --upgrade pip
+
+# Install common packages. NOTE: torch installation often requires choosing the correct CUDA wheel.
+$commonPkgs = @(
+    "accelerate",
+    "transformers",
+    "diffusers[torch]",
+    "safetensors",
+    "xformers",
+    "Pillow"
+)
+
+Write-Host "Installing common Python packages (may take a while)..."
+try {
+    & $venvPython -m pip install $commonPkgs
+} catch {
+    Write-Warning "Automatic installation of some packages failed. You may need to install torch manually for your CUDA/cuDNN setup."
+    Write-Host "If you have an NVIDIA GPU, follow https://pytorch.org/get-started/locally/ to install a matching torch+torchvision+torchaudio wheel."
+}
+
+# Prepared prompt and negative prompt (artistic, adult, non-explicit)
+$prompt = "A hyper-realistic oil-painting style full-length vertical portrait of a stunning adult Indian woman, standing before an ornate floor-to-ceiling mirror, viewed from behind in a graceful over-the-shoulder pose; ultra-fine sheer lace lingerie (artistic, non-explicit), cinematic golden-hour window light, elegant shadows, rich texture on skin and fabric, sophisticated dim boutique bedroom, shallow depth of field, ultra-detailed, photorealistic, oil painting finish"
+
+$negative = "explicit nudity, genitals, sexual act, minors, lowres, text, watermark, blurred, nsfw"
+
+# Output settings
+$width = 512
+$height = 768
+$steps = 30
+$cfg = 7.5
+$sampler = "DPM++ 2M Karras"
+$seed = -1
+$outdir = "outputs"
+
+if (-not (Test-Path $outdir)) { New-Item -ItemType Directory -Path $outdir | Out-Null }
+
+# Command to run the txt2img script. Adjust argument names if your local script expects different flags.
+$cmd = @(
+    "$venvPython",
+    ".\scripts\txt2img.py",
+    "--prompt", "`"$prompt`"",
+    "--negative_prompt", "`"$negative`"",
+    "--W", $width,
+    "--H", $height,
+    "--steps", $steps,
+    "--scale", $cfg,
+    "--sampler", "`"$sampler`"",
+    "--seed", $seed,
+    "--outdir", "`"$outdir`"",
+    "--n_samples", 1
+) -join ' '
+
+Write-Host "\nReady to generate. About to run txt2img with the prepared prompt."
+Write-Host "If your local txt2img script uses different argument names, open scripts\run_generate_portrait.ps1 and edit the command string in the \$cmd variable."
+Write-Host "Running command:\n$cmd\n"
+
+# Run the command
+Invoke-Expression $cmd
+
+Write-Host "Done. Check the $outdir folder for output images."