Adds Powershell scripts to tools.

tools/powershell/Build-Plugin.ps1

@@ -0,0 +1,20 @@
+#!/usr/bin/env pwsh
+
+# Set strict mode for better error handling
+Set-StrictMode -Version Latest
+$ErrorActionPreference = "Stop"
+
+# Find project root (two directories above this script)
+$ScriptDir = Split-Path -Parent $MyInvocation.MyCommand.Path
+$ProjectRoot = Split-Path -Parent (Split-Path -Parent $ScriptDir)
+
+# Save current location and change to project root
+Push-Location $ProjectRoot
+
+try {
+    # Build the project using Gradle
+    & ".\gradlew.bat" build
+} finally {
+    # Always restore the original location
+    Pop-Location
+}