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/yzOffice/i18n/en.php

@@ -0,0 +1,19 @@
+<?php
+return array(
+	"yzOffice.meta.name"				=> "Yozo Office View",
+	"yzOffice.meta.title"				=> "Yozo Office",
+	"yzOffice.meta.desc"				=> "Yozo Office View;",
+
+	'yzOffice.config.cacheFile'			=> "Open the cache",
+	'yzOffice.config.cacheFileDesc'		=> "After Opened,Office parsing generated images and other files stored in the server;",
+	'yzOffice.config.preview'			=> "Preview mode",
+	'yzOffice.config.previewDesc'		=> "Normal mode, the contents of complex layout will be converted to pictures;",
+	'yzOffice.config.previewNormal'		=> "Normal mode",
+	'yzOffice.config.previewHight'		=> "HD mode",
+
+	'yzOffice.Main.transfer' 		=> "1.In data transmission......",
+	'yzOffice.Main.converting'		=> '2.File conversion, please wait a moment...',
+	'yzOffice.Main.uploadError' 	=> "Upload failed. Please check PHP execution timeout!",
+	'yzOffice.Main.convert' 		=> "Start convert...",
+	'yzOffice.Main.transferAgain'	=> "Retry"
+);