feat: plugin system with isolated bundles (#2660)

scripts/setup/build-plugins.ts

@@ -0,0 +1,14 @@
+import { resolve } from 'node:path';
+
+import { fileURLToPath } from 'url';
+import { build } from 'vite';
+import { beforeAll } from 'vitest';
+
+export const rootDir = fileURLToPath(new URL('../..', import.meta.url));
+
+beforeAll(async () => {
+  const { default: config } = await import(
+    resolve(rootDir, './plugins/bookmark-block/vite.config.ts')
+  );
+  await build(config);
+});