Infer the catalog species a free-text variety label names ("Maiz de la
abuela" -> Zea mays) and prefill the category from the species family.
- Pure, testable matcher (domain/species_autoclassify.dart): whole-word,
accent/case-insensitive, Unicode-aware (any script), longest-name-wins,
ambiguous names left unclassified, light plural fold.
- Quick-add and draft naming auto-link the species when the field is empty
(non-destructive; an explicit category is kept).
- Edit sheet offers a one-tap suggestion from the typed name.
Tests: matcher unit, repository integration, SpeciesRepository.classifyLabel,
and an edit-sheet widget test.
