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
2026-03-30 20:16:32 +08:00
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+<!DOCTYPE html>
+<html>
+<head>
+  <title>Drag Zooming Tool</title>
+  <!-- Copyright 1998-2020 by Northwoods Software Corporation. -->
+  <meta name="description" content="TypeScript: Users can zoom into and out of a diagram by drawing a rectangle showing what part of the document should be shown by the new viewport." />
+  <meta name="viewport" content="width=device-width, initial-scale=1">
+
+  <script src="../samples/assets/require.js"></script>
+  <script src="../assets/js/goSamples.js"></script> <!-- this is only for the GoJS Samples framework -->
+  <script id="code">
+    function init() {
+      require(["DragZoomingScript"], function(app) {
+        app.init();
+      });
+    }
+  </script>
+</head>
+<body onload="init()">
+  <div id="sample">
+    <div id="myDiagramDiv" style="background-color: white; border: solid 1px black; width: 100%;height: 800px"></div>
+    <p>
+      This sample demonstrates the DragZoomingTool, which replaces the standard DragSelectingTool. It is defined in its own file, as <a href="DragZoomingTool.ts">DragZoomingTool.ts</a>.
+    </p>
+    <p>
+      Press in the background, wait briefly, and then drag to zoom in to show the area of the drawn rectangle.
+      Hold down the Shift key to zoom out.
+      The rectangle always has the same aspect ratio as the viewport of the diagram.
+    </p>
+  </div>
+</body>
+</html>