ci: capture build output via Tee-Object for artifact retrieval

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

.gitea/workflows/build.yml

@@ -77,29 +77,36 @@ jobs:
           else { Set-Content -Path $csproj -Value $patched -NoNewline; Write-Host "Patched: $orig -> $env:THUMB" }
 
       - name: Build (restore + compile)
-        # `msbuild /restore` runs restore and build in the same MSBuild process,
-        # so the package cache + project.assets.json + assembly resolution stay
-        # consistent (avoids NETSDK1064).
-        # /flp dumps detailed log to build.log so we can retrieve it via the
-        # Gitea Actions artifacts API even when MSBuild fails mid-target.
         shell: powershell
         run: |
-          msbuild OutlookAddin.sln /restore /t:Build /p:Configuration=Release /p:Platform="Any CPU" /m `
-            /flp:logfile=build.log`;verbosity=detailed `
-            /flp1:logfile=build-errors.log`;errorsonly `
-            /flp2:logfile=build-warnings.log`;warningsonly
-          if ($LASTEXITCODE -ne 0) { exit $LASTEXITCODE }
+          $msbuildArgs = @(
+            'OutlookAddin.sln',
+            '/restore',
+            '/t:Build',
+            '/p:Configuration=Release',
+            '/p:Platform="Any CPU"',
+            '/m',
+            '/flp:logfile=build.log;verbosity=detailed',
+            '/flp1:logfile=build-errors.log;errorsonly',
+            '/flp2:logfile=build-warnings.log;warningsonly'
+          )
+          & msbuild @msbuildArgs 2>&1 | Tee-Object -FilePath build.console.log
+          $code = $LASTEXITCODE
+          Write-Host "msbuild exit code: $code"
+          if ($code -ne 0) { exit $code }
 
       - name: Upload build logs
         if: always()
         uses: actions/upload-artifact@v4
         with:
-          name: build-logs-${{ github.run_id }}
+          name: build-logs-run${{ github.run_id }}
           path: |
             build.log
             build-errors.log
             build-warnings.log
+            build.console.log
           retention-days: 7
+          if-no-files-found: warn
 
       - name: Test
         run: dotnet test src/OutlookAddin.Tests/OutlookAddin.Tests.csproj --configuration Release --no-build --logger "trx;LogFileName=test-results.trx"