fix(trade): simplify proxy order and respect product whitelist

Drop SMS verification for HQ/partner proxy orders; keep form draft across product picker; hide whitelist-only products from partner catalog.

Co-authored-by: Cursor <cursoragent@cursor.com>

server/dukang-api/src/modules/catalog/catalog.service.ts

@@ -6,7 +6,7 @@ import { groupResourcesByProductId, mapProductMedia } from './catalog.mapper';
 export type CatalogViewer = {
   /** C 端用户手机号；无则无法看到白名单商品 */
   phone?: string | null;
-  /** 合伙人代下单等内部场景跳过白名单 */
+  /** 仅总部代下单等运营场景跳过白名单；合伙人端必须遵守白名单 */
   bypassWhitelist?: boolean;
 };