UI: AlertStateChip.LABELS and .COLORS no longer include ACKNOWLEDGED
(dropped in V17). AlertStateChip.test.tsx test-cases trimmed to the
three remaining states. LayoutShell CMD-K now searches FIRING alerts
with acked=false (was state=[FIRING,ACKNOWLEDGED]).
Test: V17MigrationIT.open_rule_index_predicate_is_reworked replaced
with a structural-only assertion (index exists, indisunique). The
pg_get_indexdef pretty-printer varies across Postgres versions, so
predicate semantics are verified behaviorally in
PostgresAlertInstanceRepositoryIT (findOpenForRule_* +
save_rejectsSecondOpenInstanceForSameRuleAndExchange).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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