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/assets/libs/bootstrap-table/dist/locale/bootstrap-table-ko-KR.min.js

@@ -0,0 +1,7 @@
+/*
+* bootstrap-table - v1.11.1 - 2017-02-22
+* https://github.com/wenzhixin/bootstrap-table
+* Copyright (c) 2017 zhixin wen
+* Licensed MIT License
+*/
+!function(a){"use strict";a.fn.bootstrapTable.locales["ko-KR"]={formatLoadingMessage:function(){return"데이터를 불러오는 중입니다..."},formatRecordsPerPage:function(a){return"페이지 당 "+a+"개 데이터 출력"},formatShowingRows:function(a,b,c){return"전체 "+c+"개 중 "+a+"~"+b+"번째 데이터 출력,"},formatSearch:function(){return"검색"},formatNoMatches:function(){return"조회된 데이터가 없습니다."},formatRefresh:function(){return"새로 고침"},formatToggle:function(){return"전환"},formatColumns:function(){return"컬럼 필터링"}},a.extend(a.fn.bootstrapTable.defaults,a.fn.bootstrapTable.locales["ko-KR"])}(jQuery);