feat(distribution): 独立分销前台商城多租户体系、货源与订单数据严格隔离

backend/internal/modules/listing/public_query.go

@@ -16,10 +16,16 @@ func (r *Repository) ListPublic(ctx context.Context, query PublicListQuery) (*Pu
 		return r.listPublicPage(ctx, query, page, pageSize)
 	}
 
+	db := r.baseQuery(ctx).
+		Where("l.status = ? AND l.review_status = ? AND l.in_transaction = ?", "published", "approved", false)
+
+	if query.DistributionSiteCode != "" {
+		db = db.Joins("INNER JOIN distribution_site_accounts AS dsa ON dsa.listing_id = l.id AND dsa.display_status = 'enabled'").
+			Joins("INNER JOIN distribution_sites AS ds ON ds.id = dsa.site_id AND ds.site_code = ? AND ds.status = 'active' AND ds.display_account_enabled = ?", query.DistributionSiteCode, true)
+	}
+
 	var rows []listingRow
-	err := r.baseQuery(ctx).
-		Where("l.status = ? AND l.review_status = ? AND l.in_transaction = ?", "published", "approved", false).
-		Order("l.published_at DESC, l.id DESC").
+	err := db.Order("l.published_at DESC, l.id DESC").
 		Scan(&rows).Error
 	if err != nil {
 		return nil, err
@@ -103,6 +109,9 @@ func normalizedPublicPage(query PublicListQuery) (int, int) {
 }
 
 func canListPublicWithSQL(query PublicListQuery) bool {
+	if query.DistributionSiteCode != "" {
+		return false
+	}
 	if query.Keyword != "" {
 		return false
 	}