v0.6.0

Added

• Screen Creator Wizard (Editor/ScreenCreator/). An Editor window
  (Assets/Cuvara/Create Screen) that scaffolds a new screen, popup or collection item in
  one click: the UXML (with SafeAreaElement for screens/popups, not items), a USS skeleton,
  the C# file (view interface + view + presenter with OnBindAsync(subs, ct), no Dispose
  override, Require<T> queries), and a test skeleton with the subs.LiveCount == 0
  assertion. Replaces the frozen GameFoundation wizard: no SignalBus, no ILoggerManager,
  no [Preserve], no ISurfaceScreenView, no BindData — every line emitted matches the
  package's own v0.5.0 API. Templates are pure string constants, testable with NUnit alone.
  21 EditMode tests cover: no banned host-framework tokens, correct base classes, correct
  OnBindAsync signature, ScreenSubscriptions parameter, CancellationToken parameter,
  Require<T> instead of Q<T>, UXML well-formed XML, SafeArea on screens not items,
  element names match view queries, placeholder substitution, kebab-case conversion.