refactor(config): Update VMX path from CI-WinBuild to WinBuild2025

Replace all references to CI-WinBuild.vmx with WinBuild2025.vmx.
Update template path: F:\CI\Templates\WinBuild\ → F:\CI\Templates\WinBuild2025\

Files affected:
- runner/config.yaml: GITEA_CI_TEMPLATE_PATH env var
- docs: HOST-SETUP.md, WINDOWS-TEMPLATE-SETUP.md, TEST-PLAN, RUNBOOK
- scripts: Measure-CIBenchmark, Set-TemplateSharedFolders, Test-NsinnounpBuild
- TODO.md, Setup-Host.ps1, README.md

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

scripts/Set-TemplateSharedFolders.ps1

@@ -25,7 +25,7 @@
 
 .PARAMETER TemplatePath
     Full path to the template VM's .vmx file.
-    Default: F:\CI\Templates\WinBuild\CI-WinBuild.vmx
+    Default: F:\CI\Templates\WinBuild2025\WinBuild2025.vmx
 
 .PARAMETER NuGetCacheDir
     Host-side path for the NuGet package cache directory.
@@ -44,7 +44,7 @@
 #>
 [CmdletBinding(SupportsShouldProcess)]
 param(
-    [string] $TemplatePath  = 'F:\CI\Templates\WinBuild\CI-WinBuild.vmx',
+    [string] $TemplatePath  = 'F:\CI\Templates\WinBuild2025\WinBuild2025.vmx',
     [string] $NuGetCacheDir = 'F:\CI\Cache\NuGet',
     [string] $PipCacheDir   = 'F:\CI\Cache\pip'
 )
@@ -115,3 +115,4 @@ if ($PSCmdlet.ShouldProcess($TemplatePath, 'Write updated VMX with shared folder
     Write-Host "  pip-cache    $PipCacheDir    ->  \\vmware-host\Shared Folders\pip-cache"
     Write-Host "[SharedFolders] Next: run Invoke-RemoteBuild.ps1 -UseSharedCache to activate."
 }
+