ci: remove redundant Compute version + Resolve tools steps (cause job to fail on act_runner)

Everything is now inlined in the single transcript-wrapped step.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

.gitea/workflows/build.yml

@@ -170,41 +170,6 @@ jobs:
           if (-not $installPath) { throw "No VS installation with the Office workload found on this runner." }
           Add-Content -Path $env:GITHUB_PATH -Value (Join-Path $installPath 'MSBuild\Current\Bin')
 
-      - name: Resolve mage.exe + signtool.exe paths
-        id: tools
-        shell: powershell
-        run: |
-          # mage.exe lives under .NET 4.8 Developer Pack. Find any installed copy.
-          $mage = Get-ChildItem 'C:\Program Files (x86)\Microsoft SDKs\Windows' -Recurse -Filter mage.exe -ErrorAction SilentlyContinue |
-              Sort-Object FullName -Descending | Select-Object -First 1
-          if (-not $mage) { throw "mage.exe not found" }
-
-          # signtool.exe lives under Windows SDK. Pick the highest-version x64 copy.
-          $signtool = Get-ChildItem 'C:\Program Files (x86)\Windows Kits\10\bin' -Recurse -Filter signtool.exe -ErrorAction SilentlyContinue |
-              Where-Object { $_.FullName -like '*\x64\*' } |
-              Sort-Object { [version](Split-Path -Leaf (Split-Path -Parent (Split-Path -Parent $_.FullName))) } -Descending |
-              Select-Object -First 1
-          if (-not $signtool) { throw "signtool.exe not found" }
-
-          Write-Host "MAGE:     $($mage.FullName)"
-          Write-Host "SIGNTOOL: $($signtool.FullName)"
-          "MAGE=$($mage.FullName)"         | Out-File -Append $env:GITHUB_ENV
-          "SIGNTOOL=$($signtool.FullName)" | Out-File -Append $env:GITHUB_ENV
-
-      - name: Compute version from tag
-        id: ver
-        shell: powershell
-        run: |
-          $tag = "${{ github.ref_name }}"
-          if ($tag -notmatch '^v(\d+\.\d+\.\d+)$') {
-            throw "Tag $tag is not in vMAJOR.MINOR.PATCH form"
-          }
-          $version = "$($Matches[1]).0"
-          "version=$version"              | Out-File -Append $env:GITHUB_OUTPUT
-          "versionDot=$($Matches[1])"     | Out-File -Append $env:GITHUB_OUTPUT
-          "versionUscore=$($version -replace '\.','_')" | Out-File -Append $env:GITHUB_OUTPUT
-          Write-Host "Version: $version"
-
       - name: Publish ClickOnce (single step with transcript)
         shell: powershell
         env: