[eric] windows polish + bump 1.0.25: publish-win.ps1 mirror of publish.sh + run.ps1 windows dev launcher, build-app-win.ps1 warns 8s if Mac latest-mac.yml missing in

v<version> release before -Publish, python-env cache skip via OPENSWARM_REBUILD_PYTHON, pip stderr wrapped to suppress PS5.1 NativeCommandError; analytics APP_VERSION
  auto-derived from electron/package.json (single source of truth); OnboardingModal renders Connected state for already-active providers; gitignore fix for backend/.venv.
  Bumps 1.0.25 - first version that ships Mac and Windows together.

scripts/build-app-win.ps1

@@ -242,6 +242,29 @@ try {
     }
 
     if ($Publish) {
+        # Safety check: warn if the matching Mac release isn't on GitHub yet.
+        # Mac and Windows publishes don't conflict (different asset names,
+        # different latest*.yml manifests), but a Windows-only release means
+        # Mac users will skip this version entirely. Better to know now than
+        # explain it after the fact. Non-fatal; sleeps 8s to let the user
+        # Ctrl+C if it surprises them.
+        try {
+            $pkgJson = Get-Content -Raw (Join-Path $ProjectRoot 'electron\package.json') | ConvertFrom-Json
+            $version = $pkgJson.version
+            $macYmlUrl = "https://github.com/openswarm-ai/openswarm/releases/download/v$version/latest-mac.yml"
+            $null = Invoke-WebRequest -Uri $macYmlUrl -Method Head -UseBasicParsing -ErrorAction Stop -TimeoutSec 10
+            Write-Host "  > Mac release v$version detected on GitHub (latest-mac.yml present). OK to proceed."
+        } catch {
+            Write-Host ""
+            Write-Host "WARNING: Mac release v$version is NOT yet published on GitHub." -ForegroundColor Yellow
+            Write-Host "  -> Uploading Windows assets to a release with no Mac assets means" -ForegroundColor Yellow
+            Write-Host "     Mac users will skip v$version entirely (electron-updater on Mac" -ForegroundColor Yellow
+            Write-Host "     will see no latest-mac.yml). Recommended order:" -ForegroundColor Yellow
+            Write-Host "       1. bash publish.sh   (on the Mac)" -ForegroundColor Yellow
+            Write-Host "       2. pwsh publish-win.ps1   (here)" -ForegroundColor Yellow
+            Write-Host "  -> Continuing in 8s. Press Ctrl+C to abort." -ForegroundColor Yellow
+            Start-Sleep -Seconds 8
+        }
         & npx electron-builder --win --x64 --publish always
     } else {
         & npx electron-builder --win --x64 --publish never