chore: add PowerShell installer for vendored HexStrike deps; call from setup.ps1

scripts/install_hexstrike_deps.ps1

@@ -0,0 +1,45 @@
+<#
+Install vendored HexStrike Python dependencies (Windows/PowerShell).
+
+This mirrors `scripts/install_hexstrike_deps.sh` for Windows users.
+#>
+Set-StrictMode -Version Latest
+
+Write-Host "Installing vendored HexStrike dependencies (Windows)..."
+
+# Load .env if present (simple parser: ignore comments/blank lines)
+if (Test-Path -Path ".env") {
+    Write-Host "Sourcing .env"
+    Get-Content .env | ForEach-Object {
+        $line = $_.Trim()
+        if ($line -and -not $line.StartsWith("#") -and $line.Contains("=")) {
+            $parts = $line -split "=", 2
+            $name = $parts[0].Trim()
+            $value = $parts[1].Trim()
+            # Only set if not empty
+            if ($name) { $env:$name = $value }
+        }
+    }
+}
+
+$req = Join-Path -Path (Get-Location) -ChildPath "third_party/hexstrike/requirements.txt"
+
+if (-not (Test-Path -Path $req)) {
+    Write-Host "Cannot find $req. Is the HexStrike subtree present?" -ForegroundColor Yellow
+    exit 1
+}
+
+# Prefer venv python if present
+$python = "python"
+if (Test-Path -Path ".\venv\Scripts\python.exe") {
+    $python = Join-Path -Path (Get-Location) -ChildPath ".\venv\Scripts\python.exe"
+}
+
+Write-Host "Using Python: $python"
+
+& $python -m pip install --upgrade pip
+& $python -m pip install -r $req
+
+Write-Host "HexStrike dependencies installed. Note: many external tools are not included and must be installed separately as described in third_party/hexstrike/requirements.txt." -ForegroundColor Green
+
+exit 0

scripts/setup.ps1

@@ -95,6 +95,17 @@ PENTESTAGENT_DEBUG=false
 New-Item -ItemType Directory -Force -Path "loot" | Out-Null
 Write-Host "[OK] Loot directory created"
 
+# Install vendored HexStrike dependencies automatically if present
+$hexReq = Join-Path -Path (Get-Location) -ChildPath "third_party/hexstrike/requirements.txt"
+if (Test-Path -Path $hexReq) {
+    Write-Host "Installing vendored HexStrike dependencies..."
+    try {
+        & .\scripts\install_hexstrike_deps.ps1
+    } catch {
+        Write-Host "Warning: Failed to install HexStrike deps: $($_.Exception.Message)" -ForegroundColor Yellow
+    }
+}
+
 Write-Host ""
 Write-Host "Setup complete!"
 Write-Host ""