The automations page collapsed loading, no-automations, and no-search-
match into a single branch that always rendered `No automations match
"{query}"`. With an empty query that read `No automations match ""`,
which also flashed during the initial fetch and when the trigger filter
(not the search) excluded everything.
Split into loading / error / true-empty / no-match states using the
shared EmptyState/ErrorState/LoadingState components. The true-empty
state is now a "Create your first automation" panel with a primary CTA,
and the search/filter toolbar is hidden when there is nothing to filter.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>