init(server/game): rewrite the server in c++

build.ps1

@@ -0,0 +1,41 @@
+param(
+    [string]$Config = "Release",
+    [switch]$Clean,
+    [switch]$Test
+)
+
+$ErrorActionPreference = "Stop"
+$root = $PSScriptRoot
+$build = Join-Path $root "build"
+
+if ($Clean -and (Test-Path $build)) { Remove-Item -Recurse -Force $build }
+
+# cmake needs cl.exe on PATH, so pull in the MSVC environment once.
+if (-not (Get-Command cl.exe -ErrorAction SilentlyContinue)) {
+    $vswhere = "${env:ProgramFiles(x86)}\Microsoft Visual Studio\Installer\vswhere.exe"
+    if (-not (Test-Path $vswhere)) { throw "vswhere.exe not found - install Visual Studio with the C++ workload" }
+    $vsPath = & $vswhere -latest -products * -requires Microsoft.VisualStudio.Component.VC.Tools.x86.x64 -property installationPath
+    if (-not $vsPath) { throw "no Visual Studio install with the C++ toolset" }
+
+    $vcvars = Join-Path $vsPath "VC\Auxiliary\Build\vcvars64.bat"
+    if (-not (Test-Path $vcvars)) { throw "vcvars64.bat not found under $vsPath" }
+
+    cmd /c "`"$vcvars`" && set" | ForEach-Object {
+        if ($_ -match '^([^=]+)=(.*)$') { Set-Item -Path "env:$($matches[1])" -Value $matches[2] }
+    }
+    if (-not (Get-Command cl.exe -ErrorAction SilentlyContinue)) { throw "vcvars64 did not put cl.exe on PATH" }
+}
+
+New-Item -ItemType Directory -Force -Path $build | Out-Null
+cmake -S "$root" -B "$build" -G Ninja "-DCMAKE_BUILD_TYPE=$Config"
+if ($LASTEXITCODE -ne 0) { throw "cmake configure failed" }
+
+cmake --build $build --parallel
+if ($LASTEXITCODE -ne 0) { throw "build failed" }
+
+if ($Test) {
+    & (Join-Path $build "bin\capysr_tests.exe")
+    if ($LASTEXITCODE -ne 0) { throw "tests failed" }
+}
+
+Write-Host "built $build\bin\capysr.exe" -ForegroundColor Green