fix(desktop): fix release workflow publish target, signing, and Windows build

- Change electron-builder publish owner from anthropics to getpaseo
- Remove CSC_NAME (auto-discovered from cert, secret had rejected prefix)
- Remove CSC_IDENTITY_AUTO_DISCOVERY=false from build script (breaks Windows cmd.exe)

packages/desktop/electron-builder.yml

@@ -10,7 +10,7 @@ extraResources:
     to: app-dist
 publish:
   provider: github
-  owner: anthropics
+  owner: getpaseo
   repo: paseo
 mac:
   category: public.app-category.developer-tools