change WUSD payment to USDC

scripts/deploy/01-prepareUSDC.ts

@@ -0,0 +1,139 @@
+import { ethers } from "hardhat";
+import * as fs from "fs";
+
+/**
+ * 准备USDC和Chainlink配置
+ * USDC是已存在的代币，无需部署
+ */
+async function main() {
+  console.log("准备USDC和Chainlink配置...\n");
+
+  const [deployer] = await ethers.getSigners();
+  console.log("操作账户:", deployer.address);
+  console.log("账户余额:", ethers.formatEther(await ethers.provider.getBalance(deployer.address)), "ETH\n");
+
+  // 获取当前网络
+  const network = await ethers.provider.getNetwork();
+  const chainId = network.chainId;
+  
+  console.log("网络:", network.name);
+  console.log("Chain ID:", chainId.toString());
+
+  // ===== 根据网络配置USDC和Chainlink地址 =====
+  let usdcAddress: string;
+  let usdcPriceFeedAddress: string;
+  
+  if (chainId === 56n) {
+    // BSC 主网
+    console.log("\n检测到 BSC 主网");
+    usdcAddress = "0x8AC76a51cc950d9822D68b83fE1Ad97B32Cd580d";
+    usdcPriceFeedAddress = "0x51597f405303C4377E36123cBc172b13269EA163";
+    console.log("✅ USDC地址 (BSC):", usdcAddress);
+    console.log("✅ Chainlink USDC/USD (BSC):", usdcPriceFeedAddress);
+  } else if (chainId === 421614n) {
+    // Arbitrum 测试网
+    console.log("\n检测到 Arbitrum 测试网");
+    usdcAddress = "0x75faf114eafb1BDbe2F0316DF893fd58CE46AA4d";
+    usdcPriceFeedAddress = "0x0153002d20B96532C639313c2d54c3dA09109309";
+    console.log("✅ USDC地址 (Arbitrum):", usdcAddress);
+    console.log("✅ Chainlink USDC/USD (Arbitrum):", usdcPriceFeedAddress);
+  } else {
+    throw new Error(`不支持的网络: ${chainId}`);
+  }
+
+  // ===== 验证合约是否存在 =====
+  console.log("\n===== 验证合约 =====");
+  
+  if (usdcAddress !== "0x0000000000000000000000000000000000000000") {
+    const usdcCode = await ethers.provider.getCode(usdcAddress);
+    if (usdcCode === "0x") {
+      console.log("❌ USDC合约不存在于该地址");
+    } else {
+      console.log("✅ USDC合约验证通过");
+      
+      // 尝试读取USDC信息
+      try {
+        const usdc = await ethers.getContractAt(
+          ["function name() view returns (string)", "function symbol() view returns (string)", "function decimals() view returns (uint8)"],
+          usdcAddress
+        );
+        const name = await usdc.name();
+        const symbol = await usdc.symbol();
+        const decimals = await usdc.decimals();
+        
+        console.log("  名称:", name);
+        console.log("  符号:", symbol);
+        console.log("  精度:", decimals.toString());
+      } catch (e) {
+        console.log("  ⚠️  无法读取USDC信息（可能是接口不匹配）");
+      }
+    }
+  }
+
+  if (usdcPriceFeedAddress !== "0x0000000000000000000000000000000000000000") {
+    const priceFeedCode = await ethers.provider.getCode(usdcPriceFeedAddress);
+    if (priceFeedCode === "0x") {
+      console.log("❌ Chainlink价格预言机不存在于该地址");
+    } else {
+      console.log("✅ Chainlink价格预言机验证通过");
+      
+      // 尝试读取最新价格
+      try {
+        const priceFeed = await ethers.getContractAt(
+          ["function latestRoundData() view returns (uint80, int256, uint256, uint256, uint80)"],
+          usdcPriceFeedAddress
+        );
+        const [, price] = await priceFeed.latestRoundData();
+        console.log("  当前USDC价格:", ethers.formatUnits(price, 8), "USD (精度1e8)");
+      } catch (e) {
+        console.log("  ⚠️  无法读取价格数据");
+      }
+    }
+  }
+
+  // ===== 保存配置 =====
+  const configInfo = {
+    network: network.name,
+    chainId: chainId.toString(),
+    deployer: deployer.address,
+    timestamp: new Date().toISOString(),
+    contracts: {
+      USDC: {
+        address: usdcAddress,
+        description: "USDC代币地址（已存在的合约）"
+      },
+      ChainlinkUSDCPriceFeed: {
+        address: usdcPriceFeedAddress,
+        description: "Chainlink USDC/USD 价格预言机",
+        precision: "1e8"
+      }
+    },
+    notes: {
+      bsc: "BSC主网的USDC是18位精度",
+      arbSepolia: "Arbitrum Sepolia的USDC是6位精度",
+    }
+  };
+
+  fs.writeFileSync(
+    "./deployments-usdc-config.json",
+    JSON.stringify(configInfo, null, 2)
+  );
+
+  // ===== 显示摘要 =====
+  console.log("\n===== 配置摘要 =====");
+  console.log("USDC地址:              ", usdcAddress);
+  console.log("Chainlink价格预言机:   ", usdcPriceFeedAddress);
+  console.log("\n✅ 配置已保存到 deployments-usdc-config.json");
+
+  console.log("\n💡 下一步:");
+  console.log("1. 运行 02-deployYTLp.ts 部署YTLp系统");
+  console.log("2. 运行 03-deployAsset.ts 部署YTAssetFactory系统");
+}
+
+main()
+  .then(() => process.exit(0))
+  .catch((error) => {
+    console.error(error);
+    process.exit(1);
+  });
+