feat(global-filter): add refreshTimeRange() for manual refresh in paused mode

Revert auto-sliding when paused — time range only advances with
auto-refresh on. Add refreshTimeRange() to useGlobalFilters for
on-demand recomputation from the active preset.

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

COMPONENT_GUIDE.md

@@ -246,7 +246,7 @@ import {
 | Checkbox | primitive | Boolean input with label |
 | CodeBlock | primitive | Syntax-highlighted code/JSON display |
 | Collapsible | primitive | Single expand/collapse section |
-| CommandPalette | composite | Full-screen search and command interface |
+| CommandPalette | composite | Full-screen search and command interface. `SearchCategory` is an open `string` type — known categories (application, exchange, attribute, route, agent) have built-in labels; custom categories render with title-cased labels and appear as dynamic tabs. |
 | ConfirmDialog | composite | Type-to-confirm destructive action dialog built on Modal. Props: open, onClose, onConfirm, title, message, confirmText, confirmLabel, cancelLabel, variant, loading, className |
 | DataTable | composite | Sortable, paginated data table with row actions. Use `flush` prop when embedded inside a container that provides its own border/radius |
 | DateRangePicker | primitive | Date range selection with presets |

src/design-system/providers/GlobalFilterProvider.tsx

@@ -12,6 +12,7 @@ export type ExchangeStatus = 'completed' | 'failed' | 'running' | 'warning'
 interface GlobalFilterContextValue {
   timeRange: TimeRange
   setTimeRange: (range: TimeRange) => void
+  refreshTimeRange: () => void
   statusFilters: Set<ExchangeStatus>
   toggleStatus: (status: ExchangeStatus) => void
   clearStatusFilters: () => void
@@ -76,6 +77,14 @@ export function GlobalFilterProvider({ children }: { children: ReactNode }) {
     return () => clearInterval(id)
   }, [autoRefresh, timeRange.preset])
 
+  // Recompute time range from preset on demand (for manual refresh in PAUSED mode)
+  const refreshTimeRange = useCallback(() => {
+    if (timeRange.preset) {
+      const { start, end } = computePresetRange(timeRange.preset)
+      setTimeRangeState({ start, end, preset: timeRange.preset })
+    }
+  }, [timeRange.preset])
+
   const isInTimeRange = useCallback(
     (timestamp: Date) => {
       if (timeRange.preset) {
@@ -90,7 +99,7 @@ export function GlobalFilterProvider({ children }: { children: ReactNode }) {
 
   return (
     <GlobalFilterContext.Provider
-      value={{ timeRange, setTimeRange, statusFilters, toggleStatus, clearStatusFilters, isInTimeRange, autoRefresh, setAutoRefresh }}
+      value={{ timeRange, setTimeRange, refreshTimeRange, statusFilters, toggleStatus, clearStatusFilters, isInTimeRange, autoRefresh, setAutoRefresh }}
     >
       {children}
     </GlobalFilterContext.Provider>