[gha] finally we ci building on all major OS's (for both Qt LTS). And…

… we also build installers for linux, macos and possibly windows against Qt 6.8

.github/workflows/build-ci.yml

@@ -596,13 +596,38 @@ jobs:
           echo "🔧 Running Inno Setup to create installer..."
           & "C:\Program Files (x86)\Inno Setup 6\ISCC.exe" "innosetup.iss"
 
-          echo "👉 Checking output installer..."
+          echo "👉 Checking if installer exists in current directory ..."
           dir
+          $originalInstaller = Get-ChildItem -Path "SocNetV-*installer.exe" -ErrorAction SilentlyContinue
+          if (-not $originalInstaller) {
+            echo "❌ Error: Installer file not found!"
+            exit 1
+          }
 
           echo "🔧 Renaming installer..."
-          Get-ChildItem -Path "SocNetV-*installer.exe" | Move-Item -Destination "SocNetV-${{env.VERSION}}-windows-installer.exe"
+          $installerName = "SocNetV-${{env.VERSION}}-windows-installer.exe"
+          Get-ChildItem -Path "SocNetV-*installer.exe" | Move-Item -Destination $installerName
           dir
 
+          echo "🎉 Exporting installer name to environment variable..."
+          echo "WINDOWS_ARTIFACT=$installerName" >> $env:GITHUB_ENV
+
           echo "🎉 Windows build complete. Artifacts are ready!"
 
+      - if: contains( matrix.os, 'windows') && matrix.qt-version == '6.8.0' && env.WINDOWS_ARTIFACT != ''
+        name: 📤 Upload ${{matrix.os}} build artifacts of ${{env.APP_NAME}} ${{ env.VERSION }} to GitHub ${{ env.UPLOAD_URL }}
+        run: |
+          echo "🔍 Verifying artifact: ${{ env.WINDOWS_ARTIFACT }}"
+          pwd
+          ls build
+          if [ ! -f "./build/${{ env.WINDOWS_ARTIFACT }}" ]; then
+            echo "❌ Error: Artifact not found!"
+            exit 1
+          fi
+
+          echo "📤 Uploading artifact to GitHub release..."
+          gh release upload continuous "./build/${{ env.WINDOWS_ARTIFACT }}" --repo "${{ github.repository }}" \
+            --clobber
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}          
       - run: echo "🍏 This job's status is ${{ job.status }}."