fix(history): keep the lineage link on failed rows that show an ops hint #1040

Problem

In frontend/src/history.ts, renderActionCell returns early for a failed row that carries an ops_hint, so the row never renders its lineage link ("↻ Retried as #…" / "↻ Retry #N"). An operator looking at such a row loses the direct link to its successor.

This early return predates #967 (it came with the ops-hint badge in #47). #967 widened the set of rows that carry a hint to executions the backend will never re-drive (redrive_unsafe). The visible case is a legacy row that was retried before the re-drive gate existed: it now shows the permanent hint and no longer links to its successor.

Found by CodeRabbit on #967 (thread on internal/api/handler_history.go:406).

Expected

A failed row with an ops_hint renders the hint badge and, when present, the lineage links in the same cell. Retry stays hidden.

Suggested fix

In the ops-hint branch, compose the badge with the lineage array instead of returning the badge alone. Add a jest case: failed row with ops_hint and retry_execution_id renders both the hint and the "Retried as" link, and no Retry button.