What createMountController needs from the bundle's boot installation.
The GeoLeaf namespace.
GeoLeaf
The GeoLeaf._app namespace: startApp, _appStarted, the cross-module state.
GeoLeaf._app
startApp
_appStarted
The bundle's module registry.
Handles a boot that threw outside every step's own handling.
What createMountController needs from the bundle's boot installation.