Release v4.110.0

Added

• Stage converts a Screenplay application's navigation topbar|sidebar regions to Scene's navigation model: the application's regions and logo from the layout, and each module's inherits/extends/overrides region, with item targets, slots, icons and sub-items. A document without regions serializes exactly as before. (part of #406)
• Toolbar buttons become toolbar items that carry the slice, emphasis and icon the Scene engine reads, with the slice written as its qualified id.
• Template assignments, own and blueprint with their version range, are carried as Scene template references, and the slice kinds of a scopes slice template travel in its metadata.
• The render plan reports Scene's own structure, navigation and toolbar validation as findings - StructureInvalid, NavigationInvalid and ToolbarButtonInvalid - for example a navigation target that does not exist, or a toolbar button that names a State View slice. See the render plan findings.

Changed

• Stage moves to Cratis.Scene 4.30.0 and Cratis.Screenplay 4.179.0, and the generated frontend pins the matching @cratis/scene.* packages.
• The Billing sample demonstrates navigation regions and toolbar buttons.