notification system implemented

need refinements

packages/shared/src/types/index.ts

@@ -25,6 +25,8 @@ export interface User {
   role: UserRole;
   gymId?: string;
   imageUrl?: string;
+  expoPushToken?: string;
+  deviceType?: "ios" | "android";
   createdAt: Date;
   updatedAt: Date;
 }