refactor(callback): 回调路径改用 channelMchNo 并显式装载商户上下文

删除 CallbackMchContextFilter，控制器入口 bindMchNoForCallback；
notify URL 由 {mchNo}/{appId} 改为 {mchNo}/{channelMchNo}；
同步修复微信路径与 ISV 回调入口，并将 payment-common 收敛为 payment-core。

_config/sql/update-datas.sql

@@ -1,7 +1,7 @@
 -- ----------------------------
--- 数据升级：对外业务命名统一（菜单 title）
+-- 数据升级：菜单展示与 IA 调整
 -- 执行顺序：update-tables.sql → update-datas.sql
--- 说明：仅更新展示文案，不改 menu code / path / 权限标识
+-- 说明：仅更新展示文案 / 父级 / 排序 / 隐藏 / 新增占位菜单；不改 menu_code / path / 权限标识（除新菜单）
 -- ----------------------------
 
 -- 通道路由：英文 Channel Routing → Channel Binding
@@ -11,13 +11,6 @@ SET "title_cn" = '通道路由',
     "last_modified_time" = NOW()
 WHERE "id" = 4040111;
 
--- 支付产品管理 → 支付产品配置
-UPDATE "public"."iam_perm_menu"
-SET "title_cn" = '支付产品配置',
-    "title_en" = 'Payment Product Config',
-    "last_modified_time" = NOW()
-WHERE "id" = 40105;
-
 -- 渠道应用 → 通道应用配置
 UPDATE "public"."iam_perm_menu"
 SET "title_cn" = '通道应用配置',
@@ -45,3 +38,108 @@ SET "title_cn" = '聚合收款配置',
     "title_en" = 'Aggregate Pay Config',
     "last_modified_time" = NOW()
 WHERE "id" = 4040121;
+
+-- ----------------------------
+-- 管理端菜单 IA：支付管理扁平 + 微信域名验证迁系统配置
+-- ----------------------------
+
+-- 平台管理 → 支付管理
+UPDATE "public"."iam_perm_menu"
+SET "title_cn" = '支付管理',
+    "title_en" = 'Payment Management',
+    "last_modified_time" = NOW()
+WHERE "id" = 4;
+
+-- 支付产品配置 → 通道产品配置，升为支付管理二级
+UPDATE "public"."iam_perm_menu"
+SET "title_cn" = '通道产品配置',
+    "title_en" = 'Channel Product Config',
+    "pid" = 4,
+    "sort_no" = 2,
+    "last_modified_time" = NOW()
+WHERE "id" = 40105;
+
+-- 微信域名验证：支付配置 → 系统配置（与平台配置同级区）
+UPDATE "public"."iam_perm_menu"
+SET "pid" = 304,
+    "sort_no" = 7,
+    "last_modified_time" = NOW()
+WHERE "id" = 40507;
+
+-- 支付配置 catalog 已无可见子菜单，隐藏
+UPDATE "public"."iam_perm_menu"
+SET "hidden" = true,
+    "last_modified_time" = NOW()
+WHERE "id" = 405;
+
+-- 一级菜单顺序：支付管理(3) → 商户管理(3.5) → 交易管理(4) → 设备管理(4.2)
+UPDATE "public"."iam_perm_menu"
+SET "sort_no" = 3.5,
+    "last_modified_time" = NOW()
+WHERE "id" = 404;
+
+UPDATE "public"."iam_perm_menu"
+SET "sort_no" = 4,
+    "last_modified_time" = NOW()
+WHERE "id" = 6;
+
+-- 系统配置：平台配置在前，安全配置在后
+UPDATE "public"."iam_perm_menu"
+SET "sort_no" = 1,
+    "last_modified_time" = NOW()
+WHERE "id" = 30402;
+
+UPDATE "public"."iam_perm_menu"
+SET "sort_no" = 2,
+    "last_modified_time" = NOW()
+WHERE "id" = 30401;
+
+-- ----------------------------
+-- 商户管理：全局「通道商户」侧栏菜单（占位，页面后续实现）
+-- id=40402；复用 menu_code=channel:merchant（与现有通道商户权限一致）
+-- component 暂用 coming-soon；path 预留全局列表路由
+-- ----------------------------
+INSERT INTO "public"."iam_perm_menu" (
+    "id", "pid", "menu_code", "client_code", "name",
+    "title_cn", "title_en", "i18n_key", "icon",
+    "hidden", "hide_children_menu", "component", "path", "redirect",
+    "sort_no", "root", "keep_alive", "affix_tab",
+    "creator", "last_modifier", "version", "deleted",
+    "menu_type", "active_icon", "badge", "badge_type", "badge_variants",
+    "iframe_src", "link", "create_time", "last_modified_time"
+)
+SELECT
+    40402,
+    404,
+    'channel:merchant',
+    'admin',
+    'ChannelMerchantGlobal',
+    '通道商户',
+    'Channel Merchant',
+    'menu.payment.merchant.channelMerchant.global',
+    'lucide:repeat',
+    false,
+    false,
+    '/_core/fallback/coming-soon',
+    '/payment/merchant/channel-merchants',
+    NULL,
+    2,
+    false,
+    true,
+    false,
+    1,
+    1,
+    0,
+    false,
+    'menu',
+    NULL,
+    NULL,
+    NULL,
+    NULL,
+    NULL,
+    NULL,
+    NOW(),
+    NOW()
+WHERE NOT EXISTS (
+    SELECT 1 FROM "public"."iam_perm_menu" WHERE "id" = 40402
+);