fix: add workspace config and remove --filter for extracted repo

The extracted repo is no longer a monorepo — pnpm --filter doesn't match
the root package. Add pnpm-workspace.yaml for packages/types, add
@groombook/types as workspace dep, and run commands directly at root.

Co-Authored-By: Paperclip <noreply@paperclip.ing>

package.json

@@ -13,6 +13,7 @@
     "test:e2e": "playwright test -c e2e/playwright.config.ts"
   },
   "dependencies": {
+    "@groombook/types": "workspace:*",
     "@stripe/react-stripe-js": "^6.1.0",
     "@stripe/stripe-js": "^9.1.0",
     "@tailwindcss/vite": "^4.2.2",