feat: use faster senja

packages/shared/src/plans/utils.ts

@@ -0,0 +1,7 @@
+import { PLANS_BY_FEATURE } from './constants';
+
+export function hasFeature(featureName: string, userPlan: string) {
+  const features = PLANS_BY_FEATURE[userPlan];
+
+  return features.includes(featureName);
+}