feat: 后端全量更新 - 含所有本次需求

- Contract.php: 返回合约账户余额(balance_contract)
- My.php: 地址管理增加BTC/ETH
- AppContract.php: 一键平仓(closeall)
- AppProxy.php: 代理专属注册链接 + 分级权限(L1/L2)
- site.php: 手续费减半(0.018→0.009)
- agent_permission_setup.sql: 代理权限SQL
- crypto_news_crawler.py: 新闻自动采集脚本

public/GoJS-master/learn/kod/static/style/skin/base/app_editor.css

@@ -0,0 +1,5 @@
+/* power by kodexplorer ver 4.49(2022-08-26) [build 1661502053.6709] */
+@import url('./fileIcon.css');
+@import url('./common.css');
+.frame-main{position:absolute;top:40px;width:100%;bottom:0px;}.frame-main .tools-left{background:#f8f8f8 url("../../../images/common/bg.gif") 0 0px;position:fixed;line-height:30px;padding-left:20px;height:28px;border-bottom:1px solid #ddd;left:0;width:100%;}.frame-main .tools-left a{font-size:1.25em;font-weight:800;text-decoration:none;color:#999;text-shadow:0 0 3px;display:inline-block;padding:2px 6px;margin-top:0;height:20px;line-height:20px;}.frame-main .tools-left a:hover{background:url("../../../images/common/buttons_40.png") 0 0px repeat-x;-webkit-box-shadow:0 2px 8px rgba(0,0,0,0.8);-moz-box-shadow:0 2px 8px rgba(0,0,0,0.8);box-shadow:0 2px 8px rgba(0,0,0,0.8);-webkit-border-radius:3px;-moz-border-radius:3px;border-radius:3px;}.frame-main .frame-left{position:absolute;left:0;top:30px;bottom:0;width:200px;background:#fff;background-attachment:fixed;overflow:auto;}.frame-main .frame-left .ztree{margin-top:0;}.frame-main .frame-left .ztree li.level0{margin-bottom:5px;}.frame-main .frame-resize{width:10px;cursor:col-resize;z-index:100;position:absolute;left:195px;top:0;bottom:0;overflow:hidden;background:url("../../../images/common/resize.png") 0px 50% no-repeat;}.frame-main .frame-resize.active{background:#000;opacity:0.2;filter:alpha(opacity=20);}.frame-main .frame-right{left:200px;right:0;position:absolute;top:0;bottom:0;overflow:auto;}.frame-main .frame-right .frame-right-main .resize-mask{z-index:999;position:absolute;left:0;top:0;bottom:0;right:0;display:none;}.frame-main .frame-right .frame-right-main .frame{height:100%;border-left:1px solid #ddd;overflow:hidden;}
+/* ver 4.49(2022-08-26) [build 1661502053.6709] */