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/samples/images/closedFolder.svg

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+<?xml version="1.0" encoding="UTF-8"?>
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 16 16" version="1.1" width="18px" height="18px">
+<g id="surface1">
+<path style=" " d="M 2.5 2 C 1.675781 2 1 2.675781 1 3.5 L 1 12.5 C 1 13.324219 1.675781 14 2.5 14 L 13.5 14 C 14.324219 14 15 13.324219 15 12.5 L 15 5.5 C 15 4.675781 14.324219 4 13.5 4 L 6.796875 4 L 6.144531 2.789063 C 5.882813 2.300781 5.375 2 4.824219 2 Z M 2.5 3 L 4.824219 3 C 5.007813 3 5.175781 3.101563 5.265625 3.261719 L 5.664063 4 L 2 4 L 2 3.5 C 2 3.21875 2.21875 3 2.5 3 Z M 2 5 L 13.5 5 C 13.78125 5 14 5.21875 14 5.5 L 14 12.5 C 14 12.78125 13.78125 13 13.5 13 L 2.5 13 C 2.21875 13 2 12.78125 2 12.5 Z "/>
+</g>
+</svg>

public/GoJS-master/samples/images/document.svg

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+<?xml version="1.0" encoding="UTF-8"?>
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 16 16" version="1.1" width="18px" height="18px">
+<g id="surface1">
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+</g>
+</svg>

public/GoJS-master/samples/images/filter.svg

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+<?xml version="1.0" encoding="utf-8"?>
+<!-- Generated by IcoMoon.io -->
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="16" height="16" viewBox="0 0 16 16">
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+</svg>

public/GoJS-master/samples/images/group.svg

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+<?xml version="1.0" encoding="utf-8"?>
+<!-- Generated by IcoMoon.io -->
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="16" height="16" viewBox="0 0 16 16">
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+<path fill="#000000" d="M5 10h-2c-0.55 0-1 0.45-1 1v2c0 0.55 0.45 1 1 1h2c0.55 0 1-0.45 1-1v-2c0-0.55-0.45-1-1-1zM5 13h-2v-2h2v2z"></path>
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+</svg>

public/GoJS-master/samples/images/join.svg

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+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2020 by Northwoods Software -->
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="16" height="16" viewBox="0 0 16 16">
+<!-- <path fill="#000000" d="M0 0 h1 v2 h4 L9 7 h4 v-1 l2 2 -2 2 v-1 h-4 L5 13 h-4 v2 h-1 v-5 h1 v2 h4 L7.5 7.5 5 3 h-4 v1 h-1 z"></path> -->
+<path fill="#000000" d="M0 0 h2 v5 h-2 z M0 10 h2 v5 h-2 z M13 3 h2 v9 h-2 z M2 1.5 h2.5 L8 6.5 h3 v-1.5 l2 2.5 -2 2.5 v-1.5 h-3 L4.5 13.5 h-2.5 v-2 h2 L6.5 7.5 4 3.5 h-2 z"></path>
+</svg>

public/GoJS-master/samples/images/openFolder.svg

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+<?xml version="1.0" encoding="UTF-8"?>
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 16 16" version="1.1" width="18px" height="18px">
+<g id="surface1">
+<path style=" " d="M 2.5 2 C 1.675781 2 1 2.675781 1 3.5 L 1 12.5 C 1 13.324219 1.675781 14 2.5 14 L 13.5 14 C 14.324219 14 15 13.324219 15 12.5 L 15 5.5 C 15 4.675781 14.324219 4 13.5 4 L 6.796875 4 L 6.144531 2.789063 C 5.882813 2.300781 5.375 2 4.824219 2 Z M 2.5 3 L 4.824219 3 C 5.007813 3 5.175781 3.101563 5.265625 3.261719 L 6.203125 5 L 13.5 5 C 13.78125 5 14 5.21875 14 5.5 L 14 7 L 5.21875 7 C 4.578125 7 4 7.414063 3.796875 8.023438 L 2.179688 12.878906 C 2.070313 12.789063 2 12.65625 2 12.5 L 2 3.5 C 2 3.21875 2.21875 3 2.5 3 Z M 5.21875 8 L 14 8 L 14 12.5 C 14 12.78125 13.78125 13 13.5 13 L 3.195313 13 L 4.746094 8.34375 C 4.816406 8.136719 5.003906 8 5.21875 8 Z "/>
+</g>
+</svg>

public/GoJS-master/samples/images/project.svg

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+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2020 by Northwoods Software -->
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="16" height="16" viewBox="0 0 16 16">
+<!-- <path fill="#000000" d="M0 0 h1 v2 h4 L9 7 h4 v-1 l2 2 -2 2 v-1 h-4 L5 13 h-4 v2 h-1 v-5 h1 v2 h4 L7.5 7.5 5 3 h-4 v1 h-1 z"></path> -->
+<path fill="#000000" d="M0 0 h2 v15 h-2 z M13 5 h2 v5 h-2 z"></path>
+<path stroke="#000000" d="M1 1 L14 6"></path>
+<path stroke="#000000" d="M1 5 L14 7"></path>
+<path stroke="#000000" d="M1 10 L14 8"></path>
+<path stroke="#000000" d="M1 14 L14 9"></path>
+</svg>

public/GoJS-master/samples/images/sort.svg

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+<?xml version="1.0" encoding="utf-8"?>
+<!-- Generated by IcoMoon.io -->
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="16" height="16" viewBox="0 0 16 16">
+<path fill="#000000" d="M5 12v-12h-2v12h-2.5l3.5 3.5 3.5-3.5h-2.5z"></path>
+<path fill="#000000" d="M7 9h9v2h-9v-2z"></path>
+<path fill="#000000" d="M7 6h7v2h-7v-2z"></path>
+<path fill="#000000" d="M7 3h5v2h-5v-2z"></path>
+<path fill="#000000" d="M7 0h3v2h-3v-2z"></path>
+</svg>

public/GoJS-master/samples/images/table.svg

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+<?xml version="1.0" encoding="utf-8"?>
+<!-- Generated by IcoMoon.io -->
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="16" height="16" viewBox="0 0 16 16">
+<path fill="#000000" d="M0 1v14h16v-14h-16zM6 10v-3h4v3h-4zM10 11v3h-4v-3h4zM10 3v3h-4v-3h4zM5 3v3h-4v-3h4zM1 7h4v3h-4v-3zM11 7h4v3h-4v-3zM11 6v-3h4v3h-4zM1 11h4v3h-4v-3zM11 14v-3h4v3h-4z"></path>
+</svg>

public/GoJS-master/samples/images/upload.svg

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+<?xml version="1.0" encoding="utf-8"?>
+<!-- Generated by IcoMoon.io -->
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="16" height="16" viewBox="0 0 16 16">
+<path fill="#000000" d="M7 9h2v-4h3l-4-4-4 4h3zM10 6.75v1.542l4.579 1.708-6.579 2.453-6.579-2.453 4.579-1.708v-1.542l-6 2.25v4l8 3 8-3v-4z"></path>
+</svg>