feat(distribution): 支持分销上传来源追踪、主站审核展示与收售结算模式自动判定

backend/internal/modules/listing/query.go

@@ -220,13 +220,17 @@ func (r *Repository) baseQuery(ctx context.Context) *gorm.DB {
 		Select(`l.*, a.title, a.description, a.game_name, a.server_region, a.login_platform, a.rank_level,
 			a.haf_coin_amount, a.asset_summary, a.screenshot_urls, COALESCE(u.phone, '') AS owner_phone, COALESCE(u.nickname, '') AS owner_nickname,
 			CASE WHEN lu.id IS NULL THEN 0 ELSE 1 END AS is_external_upload,
+			COALESCE(src_site.site_code, '') AS distribution_site_code,
+			COALESCE(src_site.site_name, '') AS distribution_site_name,
 			CASE
+				WHEN l.distribution_site_id IS NOT NULL AND src_site.id IS NOT NULL THEN CONCAT('分销站 - ', src_site.site_name, ' (', src_site.site_code, ')')
 				WHEN lu.id IS NULL THEN ?
 				WHEN COALESCE(lu.source_channel, '') = '' THEN ?
 				ELSE lu.source_channel
 			END AS source_channel`, sourceChannelWebsite, sourceChannelExternalUnknown).
 		Joins("JOIN game_accounts AS a ON a.id = l.account_id").
 		Joins("LEFT JOIN users AS u ON u.id = l.owner_id").
+		Joins("LEFT JOIN distribution_sites AS src_site ON src_site.id = l.distribution_site_id").
 		// 逐商品按 listing_id 索引定位最后一次导入，避免每次列表查询都对全量导入记录分组。
 		Joins(`LEFT JOIN listing_uploads AS lu ON lu.id = (
 			SELECT MAX(lu_latest.id) FROM listing_uploads AS lu_latest WHERE lu_latest.listing_id = l.id