Abstract base for a runtime-UX driver. @Directive() (not @Component) so it can be a decorated,
DI-capable base class without its own template; concrete drivers supply the @Component.
The work context, set by the host immediately after construction (before Start).
Methods
AbstractStart
Start():void|Promise<void>
Begin the driver's flow. Called once by the host after Context is set. Implementations typically
kick off an async preview/load here and drive their own template state from it.
Abstract base for a runtime-UX driver.
@Directive()(not@Component) so it can be a decorated, DI-capable base class without its own template; concrete drivers supply the@Component.