Simplify beta lists and combine server test details

src/lib/ui/components/OperationHistory.svelte

@@ -2,7 +2,8 @@
     import { timeFormat } from '$ui/stores/time-zone.js';
     import type { ActivityEvent, OperationStep } from '$lib/operation-flow.js';
     import Button from './primitives/Button.svelte';
-    let { steps = [], events, active = false, showOverview = true }: { steps?: OperationStep[]; events: ActivityEvent[]; active?: boolean; showOverview?: boolean } = $props();
+    import type { Snippet } from 'svelte';
+    let { steps = [], events, active = false, showOverview = true, footer }: { steps?: OperationStep[]; events: ActivityEvent[]; active?: boolean; showOverview?: boolean; footer?: Snippet } = $props();
     let limit = $state(25);
     let query = $state('');
     let newestFirst = $state(true);
@@ -40,6 +41,7 @@
     {:else}
         <p class="muted">This operation predates detailed activity tracking. Its recorded status and timestamps are shown on this page.</p>
     {/if}
+    {@render footer?.()}
     </details>
 </section>