refactor(users): drop dead WeChat notify settings surface

users/wechat schema 页写入 aksrt_settings 的 wechat_notify_* / wechat_app_* / wechat_template_* 等 15 个键全仓无任何消费方，与活配置面 aksrt_wechat_settings（WeChatNotify 读取、/users/wechat-template 页管理）构成双路；PHP 与 JS 两份 schema 的字段集早已不一致（15 vs 10），是死面腐烂的直接证据。

移除 SchemaUsers 的 wechat 分组、JS schema 文件及其注册、菜单 schema 页条目，微信配置收敛为单一自定义页入口；契约测试锁定死键零残留与活配置面唯一。

assets/admin/src/constants/sections/users.js

@@ -108,16 +108,6 @@ export const usersSection = {
       canonicalDomain: 'users',
       section: 'sms',
     }),
-    schemaPage({
-      key: 'users-wechat',
-      name: 'UsersWechat',
-      label: '微信通知',
-      route: '/users/wechat',
-      title: '微信通知',
-      desc: '配置微信模板消息、订阅/解绑和站外通知策略。',
-      canonicalDomain: 'users',
-      section: 'wechat',
-    }),
     customPage({
       key: 'users-wechat-template',
       name: 'UsersWechatTemplate',

assets/admin/src/schema/sections/users/index.js

@@ -10,7 +10,6 @@ import { featuresSchema } from './features.js'
 import { verifySchema } from './verify.js'
 import { levelSchema } from './level.js'
 import { badgeSchema } from './badge.js'
-import { wechatSchema } from './wechat.js'
 import { reportSchema } from './report.js'
 import { smsSchema } from './sms.js'
 
@@ -23,7 +22,6 @@ export const usersSchemas = {
   verify: verifySchema,
   level: levelSchema,
   badge: badgeSchema,
-  wechat: wechatSchema,
   report: reportSchema,
   sms: smsSchema,
 }

assets/admin/src/schema/sections/users/wechat.js

@@ -1,51 +0,0 @@
-export const wechatSchema = {
-  key: 'users.wechat',
-  title: '微信通知',
-  icon: 'fa fab fa-weixin',
-  description: '配置微信模板消息、订阅/解绑和站外通知策略。',
-  defaults: {
-    wechat_notify_enabled: false,
-    wechat_app_id: '',
-    wechat_app_secret: '',
-    wechat_template_id: '',
-    wechat_token: '',
-    wechat_encoding_aes_key: '',
-    wechat_notify_comment: true,
-    wechat_notify_reply: true,
-    wechat_notify_system: true,
-    wechat_bind_entry: true,
-  },
-  groups: [
-    {
-      key: 'account',
-      title: '公众号配置',
-      icon: 'fa fab fa-weixin',
-      fields: [
-        { key: 'wechat_notify_enabled', label: '启用微信通知', type: 'switch', default: false, help: '开启后用户可绑定微信接收通知' },
-        { key: 'wechat_app_id', label: 'AppID', type: 'input', default: '', dependsOn: { key: 'wechat_notify_enabled', value: true } },
-        { key: 'wechat_app_secret', label: 'AppSecret', type: 'input', default: '', dependsOn: { key: 'wechat_notify_enabled', value: true } },
-        { key: 'wechat_template_id', label: '模板消息 ID', type: 'input', default: '', dependsOn: { key: 'wechat_notify_enabled', value: true }, help: '在微信公众平台申请的模板消息 ID' },
-      ],
-    },
-    {
-      key: 'verify',
-      title: '服务器验证',
-      icon: 'fa fas fa-check-circle',
-      fields: [
-        { key: 'wechat_token', label: 'Token', type: 'input', default: '', dependsOn: { key: 'wechat_notify_enabled', value: true }, help: '微信公众平台服务器配置中的 Token' },
-        { key: 'wechat_encoding_aes_key', label: 'EncodingAESKey', type: 'input', default: '', dependsOn: { key: 'wechat_notify_enabled', value: true } },
-      ],
-    },
-    {
-      key: 'triggers',
-      title: '通知触发器',
-      icon: 'fa fas fa-bell',
-      fields: [
-        { key: 'wechat_notify_comment', label: '新评论通知', type: 'switch', default: true, dependsOn: { key: 'wechat_notify_enabled', value: true } },
-        { key: 'wechat_notify_reply', label: '评论回复通知', type: 'switch', default: true, dependsOn: { key: 'wechat_notify_enabled', value: true } },
-        { key: 'wechat_notify_system', label: '系统通知', type: 'switch', default: true, dependsOn: { key: 'wechat_notify_enabled', value: true } },
-        { key: 'wechat_bind_entry', label: '显示绑定入口', type: 'switch', default: true, dependsOn: { key: 'wechat_notify_enabled', value: true }, help: '在用户中心显示微信绑定/解绑按钮' },
-      ],
-    },
-  ],
-}