Commerce: serve the client's modern Shop ("shop2") from the worldserver

sql/updates/auth/master/2026_08_14_00_auth.sql

@@ -0,0 +1,19 @@
+--
+-- In-game Shop / BattlePay purchase ledger (account level). Shared home for BOTH the WoW Token branch
+-- and the in-game Shop branch: it answers CMSG_BATTLE_PAY_GET_PURCHASE_LIST from real history and gives
+-- purchases a PurchaseID that survives restarts. The PurchaseID (`id`) is allocated with the realm id in
+-- its high 32 bits so two realms sharing this auth DB never collide.
+DROP TABLE IF EXISTS `account_battlepay_purchase`;
+CREATE TABLE `account_battlepay_purchase` (
+  `id` bigint unsigned NOT NULL COMMENT 'Persistent monotonic PurchaseID sent on the wire; high 32 bits = realm id',
+  `account` int unsigned NOT NULL DEFAULT '0' COMMENT 'Owning game account',
+  `productId` int unsigned NOT NULL DEFAULT '0' COMMENT '0 is a VALID value (e.g. web-checkout purchases)',
+  `status` int NOT NULL DEFAULT '0' COMMENT 'BattlepayPurchaseStatus: 6 = done, 4 = failed',
+  `resultCode` int NOT NULL DEFAULT '0' COMMENT 'PurchaseResult: 0 = ok',
+  `basePrice` bigint unsigned NOT NULL DEFAULT '0' COMMENT 'Copper',
+  `userPrice` bigint unsigned NOT NULL DEFAULT '0' COMMENT 'Copper',
+  `timeCreated` bigint NOT NULL DEFAULT '0' COMMENT 'Unix seconds',
+  `walletName` varchar(32) NOT NULL DEFAULT '' COMMENT 'Wallet label; empty on this core, sent record-final',
+  PRIMARY KEY (`id`),
+  KEY `idx_account` (`account`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='In-game Shop / BattlePay purchase ledger';