docs: use vitepress

docs2/src/.vitepress/copy-plugin.ts

@@ -0,0 +1,21 @@
+import { existsSync, readFileSync } from 'fs'
+import { resolve } from 'path'
+import type { Plugin } from 'vite'
+
+export function copyVueFlowPlugin(): Plugin {
+  return {
+    name: 'copy-vue-flow',
+    generateBundle() {
+      const filePath = resolve(__dirname, '../../node_modules/@braks/vue-flow/dist/vue-flow.es.js')
+      if (!existsSync(filePath)) {
+        throw new Error(`@braks/vue-flow/dist/vue-flow.es.js not built. ` + `Run "pnpm -w build" first.`)
+      }
+
+      this.emitFile({
+        type: 'asset',
+        fileName: 'vue-flow.es.js',
+        source: readFileSync(filePath, 'utf-8'),
+      })
+    },
+  }
+}