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/package.json

@@ -0,0 +1,38 @@
+{
+  "name": "gojs",
+  "version": "2.1.26",
+  "description": "Interactive diagrams, charts, and graphs, such as trees, flowcharts, orgcharts, UML, BPMN, or business diagrams",
+  "keywords": [ "diagram", "chart", "tree", "flowchart", "orgchart", "uml", "bpmn", "graph", "editor", "drawing", "canvas", "svg", "hierarchy", "family-tree", "decision-tree", "mindmap", "treeview", "genogram", "ivr-tree", "parse-tree", "concept-map", "visualization", "entity-relationship", "er-diagram", "radial", "sankey", "pert", "gantt", "timeline", "swimlane", "workflow", "flow", "process", "state", "sequential-function", "grafcet", "sequence", "circuit", "dataflow", "data-flow", "planogram", "floorplan", "seating", "pipes", "layout", "tree-layout", "force-directed", "layered", "hierarchical", "circular", "fishbone", "ishikawa", "treemap", "tree-map", "subgraph", "network", "library", "javascript", "js", "typescript", "html", "html5" ],
+  "homepage": "https://gojs.net",
+  "bugs": {
+    "url": "https://forum.nwoods.com/c/gojs",
+    "email": "gojs@nwoods.com"
+  },
+  "license": "SEE LICENSE IN license.html",
+  "author": "Northwoods Software",
+  "files": [
+    "package.json",
+    "index.html",
+    "README.md",
+    "api",
+    "assets",
+    "changelog.html",
+    "download.html",
+    "license.html",
+    "extensions",
+    "extensionsJSM",
+    "extensionsTS",
+    "intro",
+    "learn",
+    "projects",
+    "release",
+    "samples",
+    "samplesTS"
+  ],
+  "main": "release/go.js",
+  "typings":  "release/go.d.ts",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/NorthwoodsSoftware/GoJS"
+  }
+}