ci: bound compiler concurrency and size Kotlin heap

.gitea/workflows/android.yml

@@ -26,5 +26,11 @@ jobs:
         run: |
           $ErrorActionPreference = 'Stop'
           if ((git rev-parse HEAD).Trim() -ne $env:GITHUB_SHA) { throw 'Checkout SHA mismatch' }
-          .\gradlew.bat testDebugUnitTest assembleDebug compileReleaseKotlin --no-daemon --console=plain
+          Get-CimInstance Win32_OperatingSystem | Select-Object TotalVisibleMemorySize, FreePhysicalMemory
+          # A fresh runner compiles both variants from scratch. Keep their compiler
+          # heaps separate in time; the previous shared 2 GiB heap exhausted itself.
+          $buildArgs = @('--no-daemon', '--console=plain', '--max-workers=1', '-Pkotlin.daemon.jvmargs=-Xmx4096m')
+          .\gradlew.bat testDebugUnitTest assembleDebug @buildArgs
+          if ($LASTEXITCODE -ne 0) { exit $LASTEXITCODE }
+          .\gradlew.bat compileReleaseKotlin @buildArgs
           exit $LASTEXITCODE