feat: recognition job context, diary linkage, worker improvements

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

backend/internal/domain/dish/repository.go

@@ -146,6 +146,23 @@ func (r *Repository) FindOrCreateRecipe(ctx context.Context, dishID string, calo
 	return recipeID, true, nil
 }
 
+// GetTranslation returns the translated dish name for a given language.
+// Returns ("", false, nil) if no translation exists yet.
+func (r *Repository) GetTranslation(ctx context.Context, dishID, lang string) (string, bool, error) {
+	var name string
+	queryError := r.pool.QueryRow(ctx,
+		`SELECT name FROM dish_translations WHERE dish_id = $1 AND lang = $2`,
+		dishID, lang,
+	).Scan(&name)
+	if errors.Is(queryError, pgx.ErrNoRows) {
+		return "", false, nil
+	}
+	if queryError != nil {
+		return "", false, fmt.Errorf("get dish translation %s/%s: %w", dishID, lang, queryError)
+	}
+	return name, true, nil
+}
+
 // UpsertTranslation inserts or updates the name translation for a dish in a given language.
 func (r *Repository) UpsertTranslation(ctx context.Context, dishID, lang, name string) error {
 	_, upsertError := r.pool.Exec(ctx,