feat: 添加多链支持和 Lending 借贷系统

- 新增 ARB Sepolia + BNB Testnet 多链支持
- 添加 LendingPanel 借贷系统组件
- 添加 LendingAdminPanel 管理面板
- 添加 USDCPanel USDC 操作组件
- 添加 HoldersPanel 持有人信息组件
- 添加 AutoTestPanel 自动化测试组件
- 重构 LP 组件为模块化结构 (LP/)
- 添加多个调试和测试脚本
- 修复 USDC 精度动态配置
- 优化合约配置支持多链切换

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

frontend/scripts/diagnose-configurator.js

@@ -0,0 +1,107 @@
+import { createPublicClient, http, parseAbi } from 'viem';
+import { arbitrumSepolia } from 'viem/chains';
+
+// 合约地址
+const CONFIGURATOR_ADDRESS = '0x488409CE9A3Fcd8EbD373dCb7e025cF8AB96fcdc';
+const YT_A_ADDRESS = '0x97204190B35D9895a7a47aa7BaC61ac08De3cF05';
+const USER_ADDRESS = '0xa013422A5918CD099C63c8CC35283EACa99a705d';
+
+const CONFIGURATOR_ABI = parseAbi([
+  'function owner() view returns (address)',
+  'function collateralConfigs(address) view returns (bool isActive, uint256 collateralFactor, uint256 liquidationThreshold, uint256 liquidationBonus)',
+  'function setCollateralConfig(address _asset, uint256 _collateralFactor, uint256 _liquidationThreshold, uint256 _liquidationBonus)',
+  'function setCollateralActive(address _asset, bool _isActive)'
+]);
+
+const publicClient = createPublicClient({
+  chain: arbitrumSepolia,
+  transport: http('https://sepolia-rollup.arbitrum.io/rpc')
+});
+
+async function diagnose() {
+  console.log('🔍 Configurator 诊断工具\n');
+
+  try {
+    // 1. 检查 owner
+    console.log('1️⃣ 检查合约 Owner:');
+    const owner = await publicClient.readContract({
+      address: CONFIGURATOR_ADDRESS,
+      abi: CONFIGURATOR_ABI,
+      functionName: 'owner'
+    });
+    console.log(`   Owner: ${owner}`);
+    console.log(`   你的地址: ${USER_ADDRESS}`);
+    const isOwner = owner.toLowerCase() === USER_ADDRESS.toLowerCase();
+    console.log(`   匹配: ${isOwner ? '✅' : '❌'}\n`);
+
+    if (!isOwner) {
+      console.log('   ⚠️  你不是 owner！这就是交易失败的原因。\n');
+      return;
+    }
+
+    // 2. 检查当前配置
+    console.log('2️⃣ 检查 YT-A 当前配置:');
+    try {
+      const config = await publicClient.readContract({
+        address: CONFIGURATOR_ADDRESS,
+        abi: CONFIGURATOR_ABI,
+        functionName: 'collateralConfigs',
+        args: [YT_A_ADDRESS]
+      });
+      console.log(`   isActive: ${config[0]}`);
+      console.log(`   collateralFactor: ${config[1]}`);
+      console.log(`   liquidationThreshold: ${config[2]}`);
+      console.log(`   liquidationBonus: ${config[3]}\n`);
+    } catch (error) {
+      console.log(`   ❌ 读取失败: ${error.message}\n`);
+    }
+
+    // 3. 尝试模拟调用 setCollateralConfig
+    console.log('3️⃣ 模拟调用 setCollateralConfig(YT-A, 7500, 8500, 1000):');
+    try {
+      const result = await publicClient.simulateContract({
+        address: CONFIGURATOR_ADDRESS,
+        abi: CONFIGURATOR_ABI,
+        functionName: 'setCollateralConfig',
+        args: [YT_A_ADDRESS, 7500n, 8500n, 1000n],
+        account: USER_ADDRESS
+      });
+      console.log('   ✅ 模拟成功！交易应该可以执行\n');
+      console.log('   模拟结果:', result);
+    } catch (error) {
+      console.log('   ❌ 模拟失败！');
+      console.log(`   错误类型: ${error.name}`);
+      console.log(`   错误信息: ${error.shortMessage || error.message}`);
+      if (error.cause) {
+        console.log(`   底层原因: ${JSON.stringify(error.cause, null, 2)}`);
+      }
+      if (error.details) {
+        console.log(`   详情: ${error.details}`);
+      }
+      if (error.metaMessages) {
+        console.log(`   元信息: ${error.metaMessages.join(', ')}`);
+      }
+      console.log('\n');
+    }
+
+    // 4. 检查合约代码
+    console.log('4️⃣ 检查合约代码:');
+    const bytecode = await publicClient.getBytecode({ address: CONFIGURATOR_ADDRESS });
+    console.log(`   代码大小: ${bytecode ? bytecode.length : 0} bytes`);
+    console.log(`   合约已部署: ${bytecode && bytecode.length > 2 ? '✅' : '❌'}\n`);
+
+    // 5. 建议
+    console.log('💡 诊断建议:');
+    console.log('   1. 检查合约是否有访问控制（如 Ownable, AccessControl）');
+    console.log('   2. 参数可能有范围限制（如 collateralFactor 必须 <= 10000）');
+    console.log('   3. 可能需要先调用其他初始化函数');
+    console.log('   4. 查看合约源码了解具体的 require 条件');
+    console.log('\n📊 在 Arbiscan 查看合约:');
+    console.log(`   https://sepolia.arbiscan.io/address/${CONFIGURATOR_ADDRESS}#code`);
+
+  } catch (error) {
+    console.error('❌ 诊断过程出错:', error);
+  }
+}
+
+diagnose();