Filter uncategorised category at the SQL level

Instead of loading all categories and filtering out
UNCATEGORISED in Go, add LoadConsentCategoriesByCookieBannerID
which excludes it in the query. This avoids fetching data we
immediately discard and makes the intent explicit at each call
site.

Signed-off-by: Émile Ré <emile@getprobo.com>

pkg/cookiebanner/service.go

@@ -428,7 +428,7 @@ func (s *Service) ensureDraftVersionForBanner(
 	}
 
 	var categories coredata.CookieCategories
-	if err := categories.LoadAllByCookieBannerID(ctx, tx, scope, bannerID); err != nil {
+	if err := categories.LoadConsentCategoriesByCookieBannerID(ctx, tx, scope, bannerID); err != nil {
 		return nil, fmt.Errorf("cannot load cookie categories: %w", err)
 	}
 
@@ -1887,7 +1887,7 @@ func (s *Service) GetActiveBannerConfig(
 			}
 
 			var categories coredata.CookieCategories
-			if err := categories.LoadAllByCookieBannerID(ctx, conn, scope, banner.ID); err != nil {
+			if err := categories.LoadConsentCategoriesByCookieBannerID(ctx, conn, scope, banner.ID); err != nil {
 				return fmt.Errorf("cannot load cookie categories: %w", err)
 			}