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/require-css/compatibility-test.sh

@@ -0,0 +1,46 @@
+#!/bin/bash
+
+# To cover all possible use case, you should change `optimizeCss` in `example/build.js` from "none" to
+# optimizeCss: "standard.keepLines"
+# optimizeCss: "standard.keepWhitespace"
+# optimizeCss: "standard.keepComments"
+# optimizeCss: "standard.keepComments.keepLines"
+# optimizeCss: "standard.keepLines.keepWhitespace" - default by r.js
+
+(
+  npm install requirejs@2.1.10 -g
+
+  npm install csso@1.3.12 -g
+  r.js -o example/build.js
+
+  npm install csso@1.4.0 -g
+  r.js -o example/build.js
+
+  npm install csso@1.8.0 -g
+  r.js -o example/build.js
+
+  npm install csso@2.0.0 -g
+  r.js -o example/build.js
+
+  npm install csso@latest -g
+  r.js -o example/build.js
+
+  # RequireJS@latest
+
+  npm install requirejs@latest -g
+
+  npm install csso@1.3.12 -g
+  r.js -o example/build.js
+
+  npm install csso@1.4.0 -g
+  r.js -o example/build.js
+
+  npm install csso@1.8.0 -g
+  r.js -o example/build.js
+
+  npm install csso@2.0.0 -g
+  r.js -o example/build.js
+
+  npm install csso@latest -g
+  r.js -o example/build.js
+) > compatibility.log