feat(material): add material handling and routing functionality

- Introduced MaterialHandler for managing learning materials and subjects.
- Updated router to include routes for public and admin material management.
- Enhanced database initialization with material subject and file models.
- Implemented seeding logic for material subjects and files.
- Updated wire generation to include MaterialHandler and related services.

cmd/server/wire.go

@@ -46,6 +46,7 @@ func ProvideRouter(
 	adminDashboardHandler *handler.AdminDashboardHandler,
 	adminLogHandler *handler.AdminLogHandler,
 	qrcodeHandler *handler.QRCodeHandler,
+	materialHandler *handler.MaterialHandler,
 	logService *service.LogService,
 	activityService service.UserActivityService,
 	casbinService service.CasbinService,
@@ -73,6 +74,7 @@ func ProvideRouter(
 		adminDashboardHandler,
 		adminLogHandler,
 		qrcodeHandler,
+		materialHandler,
 		logService,
 		activityService,
 		casbinService,