wip(standalone): speed round -- interrupted by a PC hard reset at 10:16 (Kernel-Power 41)

Verified before the reset (density + full mesh hashes equal at 1/8/16 workers, routes 5642/5642,
look audits green):
- merged field lookups, parallel mask merge, compact inline spatial bins, line-local relief hash
  cache, lattice-specific mesher entry, fused sign+magnitude evaluation, far connectors as one
  capsule each (181,836 -> 16,491 far primitives).
- crater edit (sphere+box+capsule, one transaction across LOD0/1): 15-27 ms; player 3x3x3
  neighbourhood meshes ready ~18 ms after streaming starts.
NOT yet verified (in the tree, unhashed): standalone-only skips of UV/colour arrays and of the
ceiling/ground material grouping (best cold whole view 0.958 s @16 workers) and a far-bin reserve
tweak. Those skips drop data the plugin's materials may need: not a game-path win as-is.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MmSoF64BbRFmk9C3p1VsBJ

Standalone/Research/OwnerShapeWorld/speed_round/RunMachine.ps1

@@ -0,0 +1,40 @@
+[CmdletBinding()]
+param(
+    [Parameter(Mandatory=$true)][string]$ExecutableName,
+    [Parameter(Mandatory=$true)][string[]]$ExecutableArguments,
+    [Parameter(Mandatory=$true)][string]$LogStem
+)
+
+$ErrorActionPreference = 'Stop'
+$RoundDir = [IO.Path]::GetFullPath($PSScriptRoot)
+$StandaloneRoot = [IO.Path]::GetFullPath((Join-Path $PSScriptRoot '..\..\..'))
+if ([IO.Path]::GetFileName($ExecutableName) -ne $ExecutableName) { throw 'ExecutableName must be a filename.' }
+if ([IO.Path]::GetFileName($LogStem) -ne $LogStem) { throw 'LogStem must be a filename stem.' }
+$ExecutablePath = Join-Path (Join-Path $StandaloneRoot 'bin') $ExecutableName
+if (-not (Test-Path -LiteralPath $ExecutablePath -PathType Leaf)) { throw "Executable not found: $ExecutablePath" }
+$StdoutPath = Join-Path $RoundDir ($LogStem + '.stdout.log')
+$StderrPath = Join-Path $RoundDir ($LogStem + '.stderr.log')
+
+$HostProcess = Get-Process -Id $PID
+$HostProcess.PriorityClass = 'Normal'
+$HostProcess.ProcessorAffinity = [IntPtr]0xFFFF
+$RunClock = [Diagnostics.Stopwatch]::StartNew()
+$Child = Start-Process -FilePath $ExecutablePath -ArgumentList $ExecutableArguments `
+    -WorkingDirectory $StandaloneRoot -WindowStyle Hidden -PassThru `
+    -RedirectStandardOutput $StdoutPath -RedirectStandardError $StderrPath
+$PeakWorkingSet = 0L
+$PeakPrivateMemory = 0L
+while (-not $Child.HasExited) {
+    $Child.Refresh()
+    if ($Child.HasExited) { break }
+    $Child.PriorityClass = 'Normal'
+    $Child.ProcessorAffinity = [IntPtr]0xFFFF
+    $PeakWorkingSet = [Math]::Max($PeakWorkingSet,$Child.WorkingSet64)
+    $PeakPrivateMemory = [Math]::Max($PeakPrivateMemory,$Child.PrivateMemorySize64)
+    Start-Sleep -Milliseconds 50
+}
+$Child.WaitForExit()
+$RunClock.Stop()
+$Child.Refresh()
+Write-Output "RUN_EXIT pid=$($Child.Id) priority=Normal affinity=0xFFFF wall_s=$([math]::Round($RunClock.Elapsed.TotalSeconds,3)) peak_working_set_gb=$([math]::Round($PeakWorkingSet/1GB,2)) peak_private_gb=$([math]::Round($PeakPrivateMemory/1GB,2)) cpu_s=$([math]::Round($Child.CPU,3)) exit_code=$($Child.ExitCode)"
+exit $Child.ExitCode