unity-serviceslisted

# Unity Gaming Services Local doc coverage for Unity Gaming Services (UGS) is thin and lopsided: these services are administered through Unity's separate services/Dashboard docs site (docs.unity.com), not through the docs.unity3d.com Manual+ScriptReference download that this skill is grounded in. The large majority of what exists locally under `Manual/com.unity.services.*` are package-landing stubs — roughly 190-260 words of real body text each (Description, Version information, Compatible-with tables), useful for confirming a package name/version/compatibility but containing no API walkthroughs, no setup steps, and no code samples. There are two real exceptions to that pattern, both re-verified in this pass: 1. **In-App Purchasing** has genuine step-by-step Manual content, but it is scoped specifically to the Windows/Xbox (Microsoft GDK) platform integration path — `windows-iap-implementation.html`, `windows-iap-verification.html`, `windows-iap-partner-center-unity-setup.html`, `xbox-games-on-windows-iap.html` — plus two ScriptReference pages for the Editor-only `UnityEditor.Purchasing.PurchasingSettings` class. There is **no** local documentation for the cross-platform runtime API (`IStoreListener`, `ConfigurationBuilder`, `Product`, `IExtensionProvider`, etc.) — that lives only on docs.unity.com. 2. **Unity Building Blocks** — a previously-missed category in this skill — are real procedural integration guides (700-1400+ words each) for Asset-Store-delivered sample scene