(CHORE): Updated and removed the last few backend components.

Just needed to clean up the VC a little bit.

internal/app/handlers/recipe_handler.go

@@ -1,2 +0,0 @@
-package handlers
-

internal/app/service/user_service.go

@@ -0,0 +1,17 @@
+package service
+
+import domain "github.com/haydenhargreaves/Potion/internal/domain/user"
+
+// UserService implements the domain.UserService defined in the domain module.
+type UserService struct {
+	userRepository domain.UserRepository
+}
+
+// Compile-time check to ensure the UserService implements domain.UserService
+var _ domain.UserService = (*UserService)(nil)
+
+// NewUserService creates a user service object which can be passed into the context. The service
+// requires a user repository which it will use to hit the database when needed.
+func NewUserService(userRepository domain.UserRepository) domain.UserService {
+	return &UserService{userRepository: userRepository}
+}

internal/domain/user/service.go

@@ -0,0 +1,4 @@
+package domain
+
+type UserService interface {
+}