feat(ui): add visual indicators for hook execution (#15408)

packages/cli/src/ui/contexts/UIStateContext.tsx

@@ -14,6 +14,7 @@ import type {
   LoopDetectionConfirmationRequest,
   HistoryItemWithoutId,
   StreamingState,
+  ActiveHook,
 } from '../types.js';
 import type { CommandContext, SlashCommand } from '../commands/types.js';
 import type { TextBuffer } from '../components/shared/text-buffer.js';
@@ -96,6 +97,7 @@ export interface UIState {
   elapsedTime: number;
   currentLoadingPhrase: string;
   historyRemountKey: number;
+  activeHooks: ActiveHook[];
   messageQueue: string[];
   queueErrorMessage: string | null;
   showAutoAcceptIndicator: ApprovalMode;