added comments

backend/internal/users/resource.go

@@ -4,16 +4,19 @@ import (
 	"gorm.io/gorm"
 )
 
+// Service Represents a service with a database connection.
 type Service struct {
 	db *gorm.DB
 }
 
+// Service - Creates a new Service instance, initializing it with a GORM database connection.
 func New(db *gorm.DB) *Service {
 	return &Service{
 		db: db,
 	}
 }
 
+// Password struct represents a user's password with a JSON tag.
 type Password struct {
 	Password string `json:"password"`
 }