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>Serpentine Layout</title>
+  <!-- Copyright 1998-2020 by Northwoods Software Corporation. -->
+  <meta name="description" content="Arrange a chain of nodes in rows, alternating directions, back and forth." />
+  <meta name="viewport" content="width=device-width, initial-scale=1">
+
+  <script src="../release/go.js"></script>
+  <script src="../assets/js/goSamples.js"></script>  <!-- this is only for the GoJS Samples framework -->
+  <script src="SerpentineLayout.js"></script>
+
+  <script id="code">
+    function init() {
+      if (window.goSamples) goSamples();  // init for these samples -- you don't need to call this
+      var $ = go.GraphObject.make;
+
+      myDiagram =
+        $(go.Diagram, "myDiagramDiv",  // create a Diagram for the DIV HTML element
+          {
+            isTreePathToChildren: false,  // links go from child to parent
+            layout: $(SerpentineLayout)  // defined in SerpentineLayout.js
+          });
+
+      myDiagram.nodeTemplate =
+        $(go.Node, go.Panel.Auto,
+          $(go.Shape, { figure: "RoundedRectangle", fill: "white" },
+            new go.Binding("fill", "color")),
+          $(go.TextBlock, { margin: 4 },
+            new go.Binding("text", "key")));
+
+      myDiagram.linkTemplate =
+        $(go.Link, go.Link.Orthogonal,
+          { corner: 5 },
+          $(go.Shape),
+          $(go.Shape, { toArrow: "Standard" }));
+
+      var model = new go.TreeModel();
+      model.nodeParentKeyProperty = "next";
+      model.nodeDataArray = [
+        { key: "Alpha", next: "Beta", color: "coral" },
+        { key: "Beta", next: "Gamma", color: "tomato" },
+        { key: "Gamma", next: "Delta", color: "goldenrod" },
+        { key: "Delta", next: "Epsilon", color: "orange" },
+        { key: "Epsilon", next: "Zeta", color: "coral" },
+        { key: "Zeta", next: "Eta", color: "tomato" },
+        { key: "Eta", next: "Theta", color: "goldenrod" },
+        { key: "Theta", next: "Iota", color: "orange" },
+        { key: "Iota", next: "Kappa", color: "coral" },
+        { key: "Kappa", next: "Lambda", color: "tomato" },
+        { key: "Lambda", next: "Mu", color: "goldenrod" },
+        { key: "Mu", next: "Nu", color: "orange" },
+        { key: "Nu", next: "Xi", color: "coral" },
+        { key: "Xi", next: "Omicron", color: "tomato" },
+        { key: "Omicron", next: "Pi", color: "goldenrod" },
+        { key: "Pi", next: "Rho", color: "orange" },
+        { key: "Rho", next: "Sigma", color: "coral" },
+        { key: "Sigma", next: "Tau", color: "tomato" },
+        { key: "Tau", next: "Upsilon", color: "goldenrod" },
+        { key: "Upsilon", next: "Phi", color: "orange" },
+        { key: "Phi", next: "Chi", color: "coral" },
+        { key: "Chi", next: "Psi", color: "tomato" },
+        { key: "Psi", next: "Omega", color: "goldenrod" },
+        { key: "Omega", color: "orange" }
+      ];
+      myDiagram.model = model;
+    }
+  </script>
+</head>
+<body onload="init()">
+<div id="sample">
+  <div id="myDiagramDiv" style="border: solid 1px black; width:100%; height:500px; min-width: 200px"></div>
+  <p>
+  This sample demonstrates a custom Layout, SerpentineLayout, which assumes the graph consists of a chain of nodes.
+  The layout is defined in its own file, as <a href="SerpentineLayout.js">SerpentineLayout.js</a>.
+  </p>
+  <p>
+  It also has <a>Layout.isViewportSized</a> set to true, so that resizing the Diagram DIV will automatically re-layout.
+  </p>
+</div>
+</body>
+</html>