Fix CI test failure by building plugin packages before tests

Co-authored-by: huangyiirene <7665279+huangyiirene@users.noreply.github.com>

Author: Copilot

package.json

@@ -21,7 +21,7 @@
     "showcase": "node packages/cli/dist/cli.js showcase",
     "start": "pnpm dev",
     "build": "pnpm --filter './packages/*' -r build && pnpm --filter './examples/*' -r build",
-    "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",
+    "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 && pnpm --filter @object-ui/plugin-kanban build && pnpm --filter @object-ui/plugin-charts build",
     "test": "vitest run",
     "docs:dev": "pnpm --filter object-ui-docs dev",
     "docs:build": "pnpm --filter object-ui-docs build",