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/Test-NsinnounpBuild.ps1

@@ -22,7 +22,7 @@
 
 .PARAMETER TemplatePath
     Path to template VMX. Default: env:GITEA_CI_TEMPLATE_PATH or
-    F:\CI\Templates\WinBuild\CI-WinBuild.vmx
+    F:\CI\Templates\WinBuild2025\WinBuild2025.vmx
 
 .PARAMETER VerifyArtifact
     If set, unzips artifacts.zip and verifies expected DLL/EXE names
@@ -143,3 +143,4 @@ Write-Host "[Test] PASS — $JobId completed in $($elapsed.ToString('mm\:ss'))"
 Write-Host "       Artifacts: $artifactDir"
 Write-Host "============================================================"
 exit 0
+