Register alpha.0 B4A prototype

tools/build-b4a.ps1

@@ -0,0 +1,51 @@
+param(
+    [string]$ProjectRoot = (Resolve-Path "$PSScriptRoot\..").Path,
+    [string]$ProjectFile = "swarm.b4a",
+    [string]$BuilderPath = "C:\Program Files\Anywhere Software\B4A\B4ABuilder.exe",
+    [ValidateSet("Build", "BuildBundle", "BuildLibrary")]
+    [string]$Task = "Build",
+    [switch]$NoSign,
+    [switch]$Obfuscate,
+    [switch]$NoClean,
+    [string]$Configuration = "",
+    [string]$Output = ""
+)
+
+$ErrorActionPreference = "Stop"
+
+if (-not (Test-Path -LiteralPath $BuilderPath)) {
+    throw "B4ABuilder.exe non trovato: $BuilderPath"
+}
+
+if (-not (Test-Path -LiteralPath (Join-Path $ProjectRoot $ProjectFile))) {
+    throw "Progetto B4A non trovato: $(Join-Path $ProjectRoot $ProjectFile)"
+}
+
+$arguments = @(
+    "-Task=$Task",
+    "-BaseFolder=$ProjectRoot",
+    "-Project=$ProjectFile",
+    "-Obfuscate=$($Obfuscate.IsPresent)",
+    "-ShowWarnings=True",
+    "-NoSign=$($NoSign.IsPresent)",
+    "-NoClean=$($NoClean.IsPresent)"
+)
+
+if ($Configuration.Trim().Length -gt 0) {
+    $arguments += "-Configuration=$Configuration"
+}
+
+if ($Output.Trim().Length -gt 0) {
+    $arguments += "-Output=$Output"
+}
+
+Write-Host "B4A build: $ProjectFile"
+Write-Host "Root: $ProjectRoot"
+Write-Host ""
+
+& $BuilderPath @arguments
+$exitCode = $LASTEXITCODE
+
+if ($exitCode -ne 0) {
+    throw "Build B4A fallita. Exit code: $exitCode"
+}