feat(h5): unify WeChat OAuth under m.runxian.top path routing

Serve user/shop/partner H5 under /user/, /shop/, /partner/ on a single authorized domain; update nginx, SSL script, and router base paths.

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

server/dukang-api/src/modules/ops/admin-promo-codes.service.ts

@@ -9,7 +9,7 @@ import { CreatePromoCodeDto } from './dto/admin-mutate.dto';
 import { AdminPromoCodesQueryDto } from './dto/admin-query.dto';
 
 function userH5Base(): string {
-  return (process.env.USER_H5_URL || 'http://localhost:5173').replace(/\/$/, '');
+  return (process.env.USER_H5_URL || 'http://localhost:5173/user').replace(/\/$/, '');
 }
 
 function buildLandingUrl(code: string): string {