Retire legacy implementations and flatten managed layout

scripts/publish-server.ps1

@@ -0,0 +1,17 @@
+[CmdletBinding(SupportsShouldProcess)]
+param(
+    [string[]]$Runtime = @('win-x64', 'linux-x64'),
+    [string]$Output
+)
+$ErrorActionPreference = 'Stop'
+
+if ($Runtime.Count -eq 0) { throw 'At least one runtime must be specified.' }
+if ($Output -and $Runtime.Count -ne 1) { throw '-Output can only be used when publishing one runtime.' }
+
+foreach ($targetRuntime in $Runtime) {
+    $targetOutput = if ($Output) { $Output } else { "$PSScriptRoot/../artifacts/server/$targetRuntime" }
+    if (-not $PSCmdlet.ShouldProcess($targetOutput, "Publish VoiceCat.Server for $targetRuntime")) { continue }
+
+    dotnet publish "$PSScriptRoot/../src/VoiceCat.Server/VoiceCat.Server.csproj" -c Release -r $targetRuntime --self-contained true -p:PublishSingleFile=true -p:IncludeNativeLibrariesForSelfExtract=true -p:PublishTrimmed=false -p:RestoreLockedMode=true "-p:NuGetLockFilePath=packages.publish.$targetRuntime.lock.json" -o $targetOutput
+    if ($LASTEXITCODE -ne 0) { throw "Managed server publish failed for $targetRuntime." }
+}