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>

README.md

@@ -49,7 +49,7 @@ Ogni build gira in una VM Windows Server 2025 **usa e getta**, ripristinata dall
 | Componente | Versione |
 |---|---|
 | OS | Windows Server 2025 |
-| VMX | `F:\CI\Templates\WinBuild\CI-WinBuild.vmx` |
+| VMX | `F:\CI\Templates\WinBuild2025\WinBuild2025.vmx` |
 | VS Build Tools | 2026 (MSBuild 18.5.4 / toolset v145) |
 | .NET SDK | 10.0.203 |
 | Python | 3.13.3 |
@@ -129,7 +129,7 @@ nssm start act_runner
 ```
 
 Imposta `GITEA_CI_TEMPLATE_PATH` nelle variabili d'ambiente del servizio:
-`F:\CI\Templates\WinBuild\CI-WinBuild.vmx`
+`F:\CI\Templates\WinBuild2025\WinBuild2025.vmx`
 
 ### 4. SSH per Gitea
 
@@ -146,7 +146,7 @@ Vedi [docs/Setup-GiteaSSH.md](docs/Setup-GiteaSSH.md) per configurare l'alias `g
   -RepoUrl             'ssh://gitea-ci/Simone/nsis-plugin-nsinnounp.git' `
   -Branch              'main' `
   -Commit              '' `
-  -TemplatePath        'F:\CI\Templates\WinBuild\CI-WinBuild.vmx' `
+  -TemplatePath        'F:\CI\Templates\WinBuild2025\WinBuild2025.vmx' `
   -Submodules `
   -BuildCommand        'python build_plugin.py --final --dist-dir dist' `
   -GuestArtifactSource 'dist' `
@@ -185,3 +185,4 @@ WinRM usa **HTTPS/5986** con certificato self-signed e Basic auth.
 `-SkipCACheck`/`-SkipCNCheck` sono accettabili in lab isolato (il cert non è di una CA trusted).
 Per ambienti condivisi o di produzione, usare un certificato CA valida e rimuovere `-SkipCACheck`.
 Vedi [docs/BEST-PRACTICES.md](docs/BEST-PRACTICES.md).
+