refactor: remove empty services (#116)

* remove empty services

* remove old factory

* remove old static files

* cleanup more duplicate service code

* file/folder reorg

backend/internal/core/services/contexts_test.go

@@ -0,0 +1,39 @@
+package services
+
+import (
+	"context"
+	"testing"
+
+	"github.com/google/uuid"
+	"github.com/hay-kot/homebox/backend/internal/data/repo"
+	"github.com/stretchr/testify/assert"
+)
+
+func Test_SetAuthContext(t *testing.T) {
+	user := &repo.UserOut{
+		ID: uuid.New(),
+	}
+
+	token := uuid.New().String()
+
+	ctx := SetUserCtx(context.Background(), user, token)
+
+	ctxUser := UseUserCtx(ctx)
+
+	assert.NotNil(t, ctxUser)
+	assert.Equal(t, user.ID, ctxUser.ID)
+
+	ctxUserToken := UseTokenCtx(ctx)
+	assert.NotEmpty(t, ctxUserToken)
+}
+
+func Test_SetAuthContext_Nulls(t *testing.T) {
+	ctx := SetUserCtx(context.Background(), nil, "")
+
+	ctxUser := UseUserCtx(ctx)
+
+	assert.Nil(t, ctxUser)
+
+	ctxUserToken := UseTokenCtx(ctx)
+	assert.Empty(t, ctxUserToken)
+}