ci: fail loud on velopack errors, guard release assets

.gitea/workflows/ci.yml

@@ -94,7 +94,12 @@ jobs:
         shell: powershell
         run: |
           $ErrorActionPreference = "Stop"
-          & powershell.exe -NoProfile -ExecutionPolicy Bypass -File scripts/release/package-velopack.ps1
+          & "$env:GITHUB_WORKSPACE/scripts/release/package-velopack.ps1"
+          if ($LASTEXITCODE -ne 0) { throw "package-velopack.ps1 failed ($LASTEXITCODE)" }
+          $out = Join-Path $env:GITHUB_WORKSPACE "artifacts/velopack/win-x64-stable"
+          foreach ($p in @("*.exe", "*.zip", "*.json", "*.nupkg")) {
+            if (@(Get-ChildItem -Path (Join-Path $out $p) -File -ErrorAction SilentlyContinue).Count -eq 0) { throw "Velopack output missing pattern $p in $out" }
+          }
       - name: Create Gitea Release with assets
         uses: akkuman/gitea-release-action@5a83c90484ef4355121df5eb60558c8ce66e81ac
         with: