added comments

backend/internal/users/roles.go

@@ -14,6 +14,7 @@ import (
 	"gorm.io/gorm"
 )
 
+// GetUsers retrieves all users from the database and returns them as a JSON response.
 func (s *Service) GetUsers(w http.ResponseWriter, r *http.Request) {
 	var users []model.User
 
@@ -32,6 +33,7 @@ func (s *Service) GetUsers(w http.ResponseWriter, r *http.Request) {
 	w.Write(res)
 }
 
+// SetUserRole handles updating a user's role based on a UUID from the request.
 func (s *Service) SetUserRole(w http.ResponseWriter, r *http.Request) {
 	var role model.Role
 	userUUIDstr, ok := mux.Vars(r)["userUUID"]
@@ -63,6 +65,7 @@ func (s *Service) SetUserRole(w http.ResponseWriter, r *http.Request) {
 	w.WriteHeader(http.StatusNoContent)
 }
 
+// DeleteUser handles the deletion of a user from the database, enforcing authorization checks.
 func (s *Service) DeleteUser(w http.ResponseWriter, r *http.Request) {
 	claims, ok := auth.ExtractClaims(r.Context())
 	if !ok {