Add backend foundation and config-driven workbench

backend/internal/service/dev_service.go

@@ -0,0 +1,32 @@
+package service
+
+import (
+	"context"
+	"net/http"
+
+	"cmr-backend/internal/apperr"
+	"cmr-backend/internal/store/postgres"
+)
+
+type DevService struct {
+	appEnv string
+	store  *postgres.Store
+}
+
+func NewDevService(appEnv string, store *postgres.Store) *DevService {
+	return &DevService{
+		appEnv: appEnv,
+		store:  store,
+	}
+}
+
+func (s *DevService) Enabled() bool {
+	return s.appEnv != "production"
+}
+
+func (s *DevService) BootstrapDemo(ctx context.Context) (*postgres.DemoBootstrapSummary, error) {
+	if !s.Enabled() {
+		return nil, apperr.New(http.StatusNotFound, "not_found", "dev bootstrap is disabled")
+	}
+	return s.store.EnsureDemoData(ctx)
+}