feat: replace large text pastes with [Pasted Text: X lines] placeholder (#16422)

packages/cli/src/ui/hooks/vim.test.tsx

@@ -67,6 +67,7 @@ const createMockTextBufferState = (
       transformedToLogicalMaps: lines.map(() => []),
       visualToTransformedMap: [],
     },
+    pastedContent: {},
     ...partial,
   };
 };