fix(captcha): wire scene switches and rename menu to 人机验证

- Admin: 登录权限 → 人机验证; 停用场景 → 启用场景 (opt-in)
- Normalize enabled_scenarios with legacy disabled_scenarios BC
- Sign-in: never soft-bypass captcha; cancel unlocks button
- Captcha JS: cancel path finishes pending callback as false

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

@@ -9,13 +9,17 @@ export const permissionsSchemas = {
    */
   login: {
     key: 'permissions.login',
-    title: '登录权限',
+    title: '人机验证',
     icon: 'fas fa-shield-alt',
-    description: '管理登录、注册、评论等场景的人机验证与访问限制。',
+    description: '配置云验证码服务商，并选择需要强制人机验证的前端场景。',
     defaults: {
       enabled: false,
       active_provider: '',
       mode: 'always',
+      enabled_scenarios: [
+        'comment', 'login', 'register', 'bind', 'bind_phone',
+        'lostpassword', 'change_password', 'change_email', 'verify_email', 'download', 'signin',
+      ],
       disabled_scenarios: [],
       tencent: {},
       aliyun: {},
@@ -28,7 +32,7 @@ export const permissionsSchemas = {
         title: '基础设置',
         icon: 'fas fa-cog',
         fields: [
-          { key: 'enabled', label: '启用人机验证', type: 'switch', help: '开启后将在指定场景要求用户完成人机验证' },
+          { key: 'enabled', label: '启用人机验证', type: 'switch', help: '总开关：关闭后所有场景均不验证' },
           {
             key: 'active_provider',
             label: '当前服务商',
@@ -54,10 +58,10 @@ export const permissionsSchemas = {
             dependsOn: { key: 'enabled', value: true },
           },
           {
-            key: 'disabled_scenarios',
-            label: '停用场景',
+            key: 'enabled_scenarios',
+            label: '启用场景',
             type: 'checkbox',
-            help: '勾选后表示该场景不启用人机验证；未勾选的场景会启用。',
+            help: '勾选 = 该场景需要人机验证。取消勾选则该场景放行。',
             dependsOn: { key: 'enabled', value: true },
             options: [
               { label: '发表评论', value: 'comment' },
@@ -297,7 +301,7 @@ export const permissionsSchemas = {
     key: 'permissions.download',
     title: '下载权限',
     icon: 'fas fa-download',
-    description: '下载门槛由 DownloadPermissions 页维护（cms_features）；人机验证服务商在登录权限页。',
+    description: '下载门槛由 DownloadPermissions 页维护（cms_features）；人机验证服务商在「人机验证」页。',
     defaults: {},
     groups: [],
   },