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/test-total-functions.js

@@ -0,0 +1,104 @@
+import { createPublicClient, http, formatUnits } from 'viem';
+import { arbitrumSepolia } from 'viem/chains';
+
+const RPC_URL = 'https://sepolia-rollup.arbitrum.io/rpc';
+const LENDING_PROXY = '0xCb4E7B1069F6C26A1c27523ce4c8dfD884552d1D';
+
+const client = createPublicClient({
+  chain: arbitrumSepolia,
+  transport: http(RPC_URL)
+});
+
+async function testBothFunctions() {
+  console.log('\n=== 测试 getTotalSupply vs getTotalLiquidity ===\n');
+
+  // 测试 getTotalSupply
+  console.log('1️⃣ 测试 getTotalSupply():');
+  try {
+    const totalSupply = await client.readContract({
+      address: LENDING_PROXY,
+      abi: [{
+        inputs: [],
+        name: 'getTotalSupply',
+        outputs: [{ internalType: 'uint256', name: '', type: 'uint256' }],
+        stateMutability: 'view',
+        type: 'function'
+      }],
+      functionName: 'getTotalSupply'
+    });
+    console.log('   ✅ 调用成功!');
+    console.log('   值:', totalSupply.toString());
+    console.log('   格式化:', formatUnits(totalSupply, 6), 'USDC');
+  } catch (error) {
+    console.log('   ❌ 调用失败!');
+    console.log('   错误:', error.message.split('\n')[0]);
+  }
+
+  console.log('\n2️⃣ 测试 getTotalLiquidity():');
+  try {
+    const totalLiquidity = await client.readContract({
+      address: LENDING_PROXY,
+      abi: [{
+        inputs: [],
+        name: 'getTotalLiquidity',
+        outputs: [{ internalType: 'uint256', name: '', type: 'uint256' }],
+        stateMutability: 'view',
+        type: 'function'
+      }],
+      functionName: 'getTotalLiquidity'
+    });
+    console.log('   ✅ 调用成功!');
+    console.log('   值:', totalLiquidity.toString());
+    console.log('   格式化:', formatUnits(totalLiquidity, 6), 'USDC');
+  } catch (error) {
+    console.log('   ❌ 调用失败!');
+    console.log('   错误:', error.message.split('\n')[0]);
+  }
+
+  // 测试其他可能的函数名
+  console.log('\n3️⃣ 测试 totalSupply() (Compound V3 标准):');
+  try {
+    const totalSupply = await client.readContract({
+      address: LENDING_PROXY,
+      abi: [{
+        inputs: [],
+        name: 'totalSupply',
+        outputs: [{ internalType: 'uint256', name: '', type: 'uint256' }],
+        stateMutability: 'view',
+        type: 'function'
+      }],
+      functionName: 'totalSupply'
+    });
+    console.log('   ✅ 调用成功!');
+    console.log('   值:', totalSupply.toString());
+    console.log('   格式化:', formatUnits(totalSupply, 6), 'USDC');
+  } catch (error) {
+    console.log('   ❌ 调用失败!');
+    console.log('   错误:', error.message.split('\n')[0]);
+  }
+
+  console.log('\n4️⃣ 测试 totalBorrow():');
+  try {
+    const totalBorrow = await client.readContract({
+      address: LENDING_PROXY,
+      abi: [{
+        inputs: [],
+        name: 'totalBorrow',
+        outputs: [{ internalType: 'uint256', name: '', type: 'uint256' }],
+        stateMutability: 'view',
+        type: 'function'
+      }],
+      functionName: 'totalBorrow'
+    });
+    console.log('   ✅ 调用成功!');
+    console.log('   值:', totalBorrow.toString());
+    console.log('   格式化:', formatUnits(totalBorrow, 6), 'USDC');
+  } catch (error) {
+    console.log('   ❌ 调用失败!');
+    console.log('   错误:', error.message.split('\n')[0]);
+  }
+
+  console.log('\n');
+}
+
+testBothFunctions().catch(console.error);