fix: attach installer .exe to Gitea release as downloadable asset

The workflow created a release and uploaded to the packages registry,
but never attached the .exe as a release asset — so the release page
had no downloads. Now uploads each NSIS installer to the release.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.gitea/workflows/build-release.yml

@@ -122,11 +122,21 @@ jobs:
 
           Write-Host "=== Upload complete ==="
 
-      - name: Create Release
+      - name: Create Release and attach installers
         shell: powershell
         run: |
           $ver = ("${{ github.ref_name }}" -replace '^v','')
+          $giteaUrl = "https://git.command.vigilcyber.com"
           $headers = @{ Authorization = "token ${{ secrets.GIT_TOKEN }}"; "Content-Type" = "application/json" }
           $body = @{ tag_name = "v$ver"; name = "Wraith v$ver"; body = "Wraith Desktop v$ver - Tauri v2 / Rust build." } | ConvertTo-Json
-          Invoke-RestMethod -Uri "https://git.command.vigilcyber.com/api/v1/repos/vstockwell/wraith/releases" -Method POST -Headers $headers -Body $body
-          Write-Host "Release v$ver created."
+          $release = Invoke-RestMethod -Uri "$giteaUrl/api/v1/repos/vstockwell/wraith/releases" -Method POST -Headers $headers -Body $body
+          $releaseId = $release.id
+          Write-Host "Release v$ver created (id: $releaseId)"
+
+          $installers = Get-ChildItem -Recurse src-tauri\target\release\bundle\nsis\*.exe
+          $uploadHeaders = @{ Authorization = "token ${{ secrets.GIT_TOKEN }}" }
+          foreach ($file in $installers) {
+            Write-Host "Attaching $($file.Name) to release..."
+            Invoke-RestMethod -Uri "$giteaUrl/api/v1/repos/vstockwell/wraith/releases/$releaseId/assets?name=$($file.Name)" -Method POST -Headers $uploadHeaders -ContentType "application/octet-stream" -InFile $file.FullName
+            Write-Host "Attached: $($file.Name)"
+          }