Fix pnpm test command to use root vitest

- Changed root test script from 'pnpm -r test' to 'vitest run'
- Added pretest script to build required packages before running tests
- Fixes issue where individual packages couldn't find vitest locally
- All 86 tests now pass successfully

Co-authored-by: hotlong <50353452+hotlong@users.noreply.github.com>

Author: Copilot

package.json

@@ -20,7 +20,8 @@
     "prototype": "pnpm --filter prototype dev",
     "playground": "pnpm --filter @apps/playground dev",
     "build": "pnpm -r build",
-    "test": "pnpm -r test",
+    "pretest": "pnpm --filter @object-ui/types build && pnpm --filter @object-ui/core build && pnpm --filter @object-ui/react build && pnpm --filter @object-ui/components build",
+    "test": "vitest run",
     "docs:dev": "pnpm --filter object-ui-docs dev",
     "docs:build": "pnpm --filter object-ui-docs build",
     "docs:preview": "pnpm --filter object-ui-docs preview",