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>

.gitignore

@@ -6,9 +6,10 @@ npm-debug.log*
 dist/*.zip
 _salvage/
 backend-web/config/local.php
+frontend-web/config/local.js
 docker/.env
 docker/config/local.php
-docker/config/deploy-config.js
+docker/config/local.js
 soonModels/*.soon
 backend-web/storage/payment/*
 !backend-web/storage/**/.gitkeep
@@ -17,3 +18,4 @@ backend-web/storage/payment/*
 *.bak
 *.pem
 *.key
+/soonDesign-back