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/extensionsJSM/ResizeMultipleTool.ts

@@ -0,0 +1,65 @@
+/*
+*  Copyright (C) 1998-2020 by Northwoods Software Corporation. All Rights Reserved.
+*/
+
+/*
+* This is an extension and not part of the main GoJS library.
+* Note that the API for this class may change with any version, even point releases.
+* If you intend to use an extension in production, you should copy the code to your own source directory.
+* Extensions can be found in the GoJS kit under the extensions or extensionsTS folders.
+* See the Extensions intro page (https://gojs.net/latest/intro/extensions.html) for more information.
+*/
+
+import * as go from '../release/go-module.js';
+
+/**
+ * The ResizeMultipleTool class lets the user resize multiple objects at once.
+ *
+ * If you want to experiment with this extension, try the <a href="../../extensionsTS/ResizeMultiple.html">Resize Multiple</a> sample.
+ * @category Tool Extension
+ */
+export class ResizeMultipleTool extends go.ResizingTool {
+  /**
+   * Constructs a ResizeMultipleTool and sets the name for the tool.
+   */
+  constructor() {
+    super();
+    this.name = 'ResizeMultiple';
+  }
+
+  /**
+   * Overrides {@link ResizingTool#resize} to resize all selected objects to the same size.
+   * @param {Rect} newr the intended new rectangular bounds for each Part's {@link Part#resizeObject}.
+   */
+  public resize(newr: go.Rect): void {
+    const diagram = this.diagram;
+    diagram.selection.each(function(part) {
+      if (part instanceof go.Link || part instanceof go.Group) return; // only Nodes and simple Parts
+      const obj = part.resizeObject;
+
+      // calculate new location
+      const pos = part.position.copy();
+      const angle = obj.getDocumentAngle();
+      const sc = obj.getDocumentScale();
+
+      const radAngle = Math.PI * angle / 180;
+      const angleCos = Math.cos(radAngle);
+      const angleSin = Math.sin(radAngle);
+
+      const deltaWidth = newr.width - obj.naturalBounds.width;
+      const deltaHeight = newr.height - obj.naturalBounds.height;
+
+      const angleRight = (angle > 270 || angle < 90) ? 1 : 0;
+      const angleBottom = (angle > 0 && angle < 180) ? 1 : 0;
+      const angleLeft = (angle > 90 && angle < 270) ? 1 : 0;
+      const angleTop = (angle > 180 && angle < 360) ? 1 : 0;
+
+      pos.x += sc * ((newr.x + deltaWidth * angleLeft) * angleCos - (newr.y + deltaHeight * angleBottom) * angleSin);
+      pos.y += sc * ((newr.x + deltaWidth * angleTop) * angleSin + (newr.y + deltaHeight * angleLeft) * angleCos);
+
+      obj.desiredSize = newr.size;
+      part.position = pos;
+    });
+  }
+
+}