前端配置迁至 config/local.js，完善支付、模板库与部署脚本

- 页面直接引用 local.js 设置 SOON_DEPLOY_CONFIG，移除 deploy-config
- Docker sync-config 生成 local.js；更新 README 与 agent-core 说明
- 模板库自动扫描 .soon；新增后端部署/种子/排查脚本
- 完善支付配置、订阅弹窗与后台支付管理页

Co-authored-by: Cursor <cursoragent@cursor.com>

backend-web/config/local.php.example

@@ -26,7 +26,7 @@ return [
     ],
     'storage' => [
         'users_dir' => '/www/wwwroot/designadmin.cardsoon.com/backend/storage/users',
-        'models_dir' => '/www/wwwroot/design.cardsoon.com/soonModels',
+        'models_dir' => '/www/wwwroot/designadmin.cardsoon.com/soonModels',
     ],
     'limits' => [
         'free_quota_mb' => 20,
@@ -54,4 +54,7 @@ return [
         'api_v3_key' => '',
         'sandbox' => false,
     ],
+    'payment' => [
+        'display_channels' => 'alipay',
+    ],
 ];