fix(cli): prevent suppression of history items during tool confirmation

Updates the history item suppression logic in MainContent to ensure that
intermediate turns and narration text remain visible while a tool
confirmation (like ask_user) is active. This prevents items from
unexpectedly disappearing from the UI during interactive tool execution.

- Modified MainContent.tsx to skip suppression when showConfirmationQueue is true.
- Updated MainContent.test.tsx with a default mock for useConfirmingTool.

packages/cli/src/ui/components/MainContent.test.tsx

@@ -66,7 +66,7 @@ vi.mock('../hooks/useAlternateBuffer.js', () => ({
 }));
 
 vi.mock('../hooks/useConfirmingTool.js', () => ({
-  useConfirmingTool: vi.fn(),
+  useConfirmingTool: vi.fn(() => null),
 }));
 
 vi.mock('./AppHeader.js', () => ({

packages/cli/src/ui/components/MainContent.tsx

@@ -123,20 +123,25 @@ export const MainContent = () => {
 
           // Rule 2: Suppress text in intermediate turns (turns containing non-topic
           // tools) to hide mechanical narration.
-          if (turnIsIntermediate) {
+          if (turnIsIntermediate && !showConfirmationQueue) {
             flags[i] = true;
           }
 
           // Rule 3: Suppress text that precedes a topic tool in the same turn,
           // as the topic tool "replaces" it.
-          if (hasTopicToolInTurn) {
+          if (hasTopicToolInTurn && !showConfirmationQueue) {
             flags[i] = true;
           }
         }
       }
     }
     return flags;
-  }, [uiState.history, pendingHistoryItems, topicUpdateNarrationEnabled]);
+  }, [
+    uiState.history,
+    pendingHistoryItems,
+    topicUpdateNarrationEnabled,
+    showConfirmationQueue,
+  ]);
 
   const augmentedHistory = useMemo(
     () =>