feat: 添加 MiniSwap CLI 工具及相关文档

- 新增 CLI 工具，支持通过命令行与 MiniSwapAMM 合约交互
- 创建 CLI 使用指南文档，详细说明命令和操作流程
- 更新合约地址，确保与新部署的合约匹配
- 添加快速网络连接测试脚本，验证合约连接和网络状态
- 实现完整测试场景脚本，模拟用户操作和流动性管理

package.json

@@ -9,7 +9,10 @@
     "deploy": "hardhat run scripts/deploy.js --network localhost",
     "node": "hardhat node",
     "dev": "cd frontend && npm start",
-    "build": "cd frontend && npm run build"
+    "build": "cd frontend && npm run build",
+    "cli": "hardhat run scripts/cli.js --network localhost",
+    "test-scenario": "hardhat run scripts/test-scenario.js --network localhost",
+    "test-connection": "hardhat run scripts/quick-test.js --network localhost"
   },
   "keywords": ["defi", "dex", "amm", "ethereum", "solidity", "react"],
   "author": "",