feat: add auto-refresh toggle wired to all polling queries

Upgrade @cameleer/design-system to ^0.1.3 which adds LIVE/PAUSED
toggle to TopBar backed by autoRefresh state in GlobalFilterProvider.

Add useRefreshInterval() hook that returns the polling interval when
auto-refresh is on, or false when paused. Wire it into all query
hooks that use refetchInterval (executions, catalog, agents, metrics,
admin database/opensearch).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

ui/src/api/queries/use-refresh-interval.ts

@@ -0,0 +1,10 @@
+import { useGlobalFilters } from '@cameleer/design-system';
+
+/**
+ * Returns the given interval when auto-refresh is enabled, or `false` when paused.
+ * Use as `refetchInterval` in React Query hooks.
+ */
+export function useRefreshInterval(intervalMs: number): number | false {
+  const { autoRefresh } = useGlobalFilters();
+  return autoRefresh ? intervalMs : false;
+}