fix(core): remove unused path import in vite config

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

packages/core/vite.config.ts

@@ -1,4 +1,3 @@
-import path from 'node:path';
 import glob from 'glob';
 import { nodeExternals } from 'rollup-plugin-node-externals';
 import { defineConfig } from 'vite';