Notifications API

Method	Path	Auth	Summary	Source
GET	/api/notifications	student	List notifications	notification/notificationRoutes.ts
PATCH	/api/notifications/:id/read	student	Update notifications — id read	notification/notificationRoutes.ts
POST	/api/notifications/read-all	student	Create / execute notifications — read all	notification/notificationRoutes.ts
POST	/api/notifications/send	assistant	Create / execute notifications — send	notification/notificationRoutes.ts
GET	/api/notifications/unread-count	student	List notifications — unread count	notification/notificationRoutes.ts