{# Vendored from opportunities/_filter_controls.html. Same two-row grammar, same ui-control / ui-filter-row / ui-btn-ghost classes, same autosubmit-on-change script. Only deltas: - form action → /failures - the per-column dropdowns swap "Issue / Workload / Suggestions / Partition-Cluster" for "Reason / Suggestions" (the only signals that exist on the failures table). #}