Revert "feat: Introduce an AI-driven interactive shell mode with new"

This reverts commit 651ad63ed6.

packages/cli/src/ui/hooks/shellReducer.ts

@@ -92,23 +92,7 @@ export function shellReducer(
         nextTasks.delete(action.pid);
       }
       nextTasks.set(action.pid, updatedTask);
-
-      // Auto-hide panel when all tasks have exited
-      let nextVisible = state.isBackgroundTaskVisible;
-      if (action.update.status === 'exited') {
-        const hasRunning = Array.from(nextTasks.values()).some(
-          (s) => s.status === 'running',
-        );
-        if (!hasRunning) {
-          nextVisible = false;
-        }
-      }
-
-      return {
-        ...state,
-        backgroundTasks: nextTasks,
-        isBackgroundTaskVisible: nextVisible,
-      };
+      return { ...state, backgroundTasks: nextTasks };
     }
     case 'APPEND_TASK_OUTPUT': {
       const task = state.backgroundTasks.get(action.pid);