DialogState::show_error shows an app's message under the table until the
user dismisses it (a new Dismiss button on every message) or the next
action replaces it. ForeignSet::truncated carries the entries the app's
reader dropped; plan counts them in ImportReport::truncated, which the
import review shows.
Outcome, ConflictMode, ProfileError and Options are non_exhaustive, with Options::with for
options built in one expression. Profiles keeps its fields private behind active() and sets(),
lists the sets loading dropped in problems(), and stores a format version (a store without one
reads as version 1).
Profiles keeps the user's sets beside the app's built-in ones: switch, duplicate,
rename, delete, export one set as JSON and import it back, and import another
application's set through an import plan as a new set. The editor model holds an
edit session with undo and cancel, conflict queries for steal or keep, a chord
recorder with double press, and search.
aiongg