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-uz-Latn-UZ.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["uz-Latn-UZ"]={formatLoadingMessage:function(){return"Yuklanyapti, iltimos kuting..."},formatRecordsPerPage:function(a){return a+" qator har sahifada"},formatShowingRows:function(a,b,c){return"Ko'rsatypati "+a+" dan "+b+" gacha "+c+" qatorlarni"},formatSearch:function(){return"Qidirish"},formatNoMatches:function(){return"Hech narsa topilmadi"},formatPaginationSwitch:function(){return"Sahifalashni yashirish/ko'rsatish"},formatRefresh:function(){return"Yangilash"},formatToggle:function(){return"Ko'rinish"},formatColumns:function(){return"Ustunlar"},formatAllRows:function(){return"Hammasi"},formatExport:function(){return"Eksport"},formatClearFilters:function(){return"Filtrlarni tozalash"}},a.extend(a.fn.bootstrapTable.defaults,a.fn.bootstrapTable.locales["uz-Latn-UZ"])}(jQuery);