fix.调整了OOBE流程，修复了启动器打包问题

.github/workflows/installer-build.yml

@@ -20,6 +20,8 @@ on:
 env:
   DOTNET_VERSION: '10.0.x'
   INSTALLER_PROJECT: LanDesktopPLONDS.installer/LanDesktopPLONDS.installer.csproj
+  INSTALLER_RUNTIME: win-x64
+  INSTALLER_ARTIFACT_DIR: artifacts/installer-online/win-x64
   DOTNET_gcServer: 1
 
 jobs:
@@ -49,3 +51,52 @@ jobs:
 
       - name: Build installer
         run: dotnet build ${{ env.INSTALLER_PROJECT }} --no-restore -c ${{ matrix.configuration }} -v minimal
+
+      - name: Publish online installer artifact payload
+        if: matrix.configuration == 'Release'
+        shell: pwsh
+        run: |
+          $publishDir = Join-Path $env:GITHUB_WORKSPACE '${{ env.INSTALLER_ARTIFACT_DIR }}'
+          if (Test-Path $publishDir) {
+            Remove-Item -LiteralPath $publishDir -Recurse -Force
+          }
+
+          New-Item -ItemType Directory -Path $publishDir -Force | Out-Null
+
+          dotnet restore '${{ env.INSTALLER_PROJECT }}' -r '${{ env.INSTALLER_RUNTIME }}'
+          if ($LASTEXITCODE -ne 0) {
+            throw "Online installer runtime restore failed with exit code $LASTEXITCODE."
+          }
+
+          dotnet publish '${{ env.INSTALLER_PROJECT }}' `
+            --no-restore `
+            -c '${{ matrix.configuration }}' `
+            -r '${{ env.INSTALLER_RUNTIME }}' `
+            -p:PublishAot=true `
+            -p:UseAppHost=true `
+            -o $publishDir `
+            -v minimal
+
+          $installerExe = Join-Path $publishDir 'LanDesktopPLONDS.installer.exe'
+          if (-not (Test-Path $installerExe)) {
+            if ($LASTEXITCODE -ne 0) {
+              throw "Online installer publish failed with exit code $LASTEXITCODE and did not produce $installerExe."
+            }
+
+            throw "Expected online installer executable was not produced: $installerExe"
+          }
+
+          if ($LASTEXITCODE -ne 0) {
+            Write-Warning "dotnet publish exited with $LASTEXITCODE after producing the installer artifact."
+          }
+
+          Get-ChildItem -Path $publishDir -File -Filter 'LanDesktopPLONDS.installer*' |
+            Select-Object Name, Length
+
+      - name: Upload online installer artifact
+        if: matrix.configuration == 'Release'
+        uses: actions/upload-artifact@v4
+        with:
+          name: LanDesktopPLONDS-online-installer-${{ env.INSTALLER_RUNTIME }}
+          path: ${{ env.INSTALLER_ARTIFACT_DIR }}/**
+          if-no-files-found: error