Revert "Including a test harness for it, and making sure the cursor is always at the end."

This reverts commit 97db77997f.

packages/cli/vitest.config.ts

@@ -1,22 +0,0 @@
-import { defineConfig } from 'vitest/config';
-import react from '@vitejs/plugin-react'; // For JSX support
-import path from 'path'; // Import path
-
-export default defineConfig({
-  root: path.resolve(__dirname), // Explicitly set root to the current directory (packages/cli)
-  plugins: [react()], // Add React plugin for JSX/TSX
-  test: {
-    globals: true, // Use global APIs (describe, test, expect, vi)
-    environment: 'jsdom', // Changed environment to jsdom
-    // More specific include pattern to find the test file
-    include: ['src/**/*.test.{ts,tsx}'],
-    // Add setup files if needed (e.g., for global mocks, testing-library config)
-    // setupFiles: './src/test/setup.ts',
-    mockReset: true, // Reset mocks between tests
-    clearMocks: true, // Clear mock history between tests
-    alias: {
-      // Add path aliases if you use them in your src code
-      // Example: '@/*': path.resolve(__dirname, './src/*'),
-    },
-  },
-});