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/projects/floorplannerTS/src/floorplannerFiles.ts

@@ -0,0 +1,16 @@
+/*
+ * Copyright (C) 1998-2020 by Northwoods Software Corporation
+ * All Rights Reserved.
+*/
+
+import * as Floorplan from './Floorplan.js';
+import * as FloorplanPalette from './FloorplanPalette.js';
+import * as WallBuildingTool from './WallBuildingTool.js';
+import * as WallReshapingTool from './WallReshapingTool.js';
+
+module.exports = {
+    Floorplan: require('./Floorplan').Floorplan,
+    FloorplanPalette: require('./FloorplanPalette').FloorplanPalette,
+    WallBuildingTool: require('./WallBuildingTool').WallBuildingTool,
+    WallReshapingTool: require('./WallReshapingTool').WallReshapingTool
+};