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/plugins/picasa/app.php

@@ -0,0 +1,17 @@
+<?php
+
+class picasaPlugin extends PluginBase{
+	function __construct(){
+		parent::__construct();
+	}
+	public function regiest(){
+		$this->hookRegiest(array(
+			'user.commonJs.insert' => 'picasaPlugin.echoJs',
+		));
+	}
+	public function echoJs($st,$act){
+		if($this->isFileExtence($st,$act)){
+			$this->echoFile('static/main.js');
+		}
+	}
+}