CI: gebaute MSI zusaetzlich als Gitea-Release-Asset spiegeln

Neuer Schritt in release.yml lädt die MSI nach dem GitHub-Release per Gitea-API
(Release per Tag holen/anlegen, gleichnamiges Asset ersetzen, hochladen).
Benoetigt GitHub-Secret GITEA_TOKEN; ohne Token ueberspringt sich der Schritt.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

.github/workflows/release.yml

@@ -107,3 +107,50 @@ jobs:
             - `Microsoft.Graph.Authentication` Modul (wird beim ersten Start automatisch angeboten)
           files: "IntuneManager-${{ steps.ver.outputs.TAG }}.msi"
           generate_release_notes: false
+
+      - name: Mirror MSI to Gitea release
+        shell: pwsh
+        env:
+          GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
+          GITEA_BASE:  https://git.wende.it/api/v1
+          GITEA_OWNER: marco
+          GITEA_REPO:  Intune-Manager
+          TAG:         ${{ steps.ver.outputs.TAG }}
+          MSI_NAME:    ${{ steps.build.outputs.MSI_NAME }}
+          COMMIT_SHA:  ${{ github.sha }}
+        run: |
+          if ([string]::IsNullOrWhiteSpace($env:GITEA_TOKEN)) {
+            Write-Host "::notice::GITEA_TOKEN nicht gesetzt — Gitea-Upload uebersprungen."
+            exit 0
+          }
+          $headers = @{ Authorization = "token $env:GITEA_TOKEN" }
+          $repoUrl = "$($env:GITEA_BASE)/repos/$($env:GITEA_OWNER)/$($env:GITEA_REPO)"
+
+          # Release per Tag suchen; sonst anlegen (Tag wird bei Bedarf am Commit erzeugt).
+          $rel = $null
+          try { $rel = Invoke-RestMethod -Headers $headers -Uri "$repoUrl/releases/tags/$($env:TAG)" -Method GET } catch { $rel = $null }
+          if (-not $rel) {
+            $body = @{
+              tag_name         = $env:TAG
+              target_commitish = $env:COMMIT_SHA
+              name             = "Intune Manager $($env:TAG)"
+              body             = "Automatisch aus der GitHub-CI gespiegelt."
+            } | ConvertTo-Json
+            $rel = Invoke-RestMethod -Headers $headers -Uri "$repoUrl/releases" -Method POST -ContentType 'application/json' -Body $body
+          }
+          $relId = $rel.id
+
+          # Vorhandenes Asset gleichen Namens entfernen (idempotent bei Re-Runs).
+          try {
+            $assets = Invoke-RestMethod -Headers $headers -Uri "$repoUrl/releases/$relId/assets" -Method GET
+            foreach ($a in @($assets)) {
+              if ($a.name -eq $env:MSI_NAME) {
+                Invoke-RestMethod -Headers $headers -Uri "$repoUrl/releases/$relId/assets/$($a.id)" -Method DELETE | Out-Null
+              }
+            }
+          } catch {}
+
+          # MSI als Attachment hochladen (multipart, Feldname 'attachment').
+          $assetUri = "$repoUrl/releases/$relId/assets?name=$([uri]::EscapeDataString($env:MSI_NAME))"
+          Invoke-RestMethod -Headers $headers -Uri $assetUri -Method POST -Form @{ attachment = Get-Item -LiteralPath $env:MSI_NAME } | Out-Null
+          Write-Host "MSI '$($env:MSI_NAME)' -> Gitea-Release '$($env:TAG)' hochgeladen."