Revert "First pass at pulling the v1.5 CLI, TUI, and Launcher clients into v2."

This reverts commit 467b01edd6.

clients/cli/vitest.config.ts

@@ -1,17 +0,0 @@
-import path from 'node:path';
-import { fileURLToPath } from 'node:url';
-import { defineConfig } from 'vitest/config';
-import { vitestSharedPaths } from '../../vitest.shared.mts';
-
-const dirname = path.dirname(fileURLToPath(import.meta.url));
-const { projectResolve } = vitestSharedPaths(dirname);
-
-export default defineConfig({
-  resolve: projectResolve,
-  test: {
-    globals: false,
-    environment: 'node',
-    include: ['__tests__/**/*.test.ts'],
-    testTimeout: 15000,
-  },
-});