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/debug-lending-functions.js

@@ -0,0 +1,82 @@
+import { createPublicClient, http, getAddress, parseAbi, encodeFunctionData } from 'viem'
+import { arbitrumSepolia } from 'viem/chains'
+
+const client = createPublicClient({
+  chain: arbitrumSepolia,
+  transport: http('https://sepolia-rollup.arbitrum.io/rpc')
+})
+
+const LENDING_PROXY = getAddress('0xCb4E7B1069F6C26A1c27523ce4c8dfD884552d1D')
+// A random user address or the deployer to test view functions
+const USER = getAddress('0xa013422A5918CD099C63c8CC35283EACa99a705d') 
+
+async function main() {
+  console.log('Checking Lending Proxy View Functions...')
+
+  // Check borrowBalanceOf
+  try {
+    const data = encodeFunctionData({
+      abi: parseAbi(['function borrowBalanceOf(address) view returns (uint256)']),
+      functionName: 'borrowBalanceOf',
+      args: [USER]
+    })
+    const result = await client.call({
+      to: LENDING_PROXY,
+      data
+    })
+    console.log(`✅ borrowBalanceOf exists. Result: ${result.data}`)
+  } catch (e) {
+    console.log(`❌ borrowBalanceOf failed: ${e.message.slice(0, 100)}...`)
+  }
+
+  // Check getBorrowBalance
+  try {
+    const data = encodeFunctionData({
+      abi: parseAbi(['function getBorrowBalance(address) view returns (uint256)']),
+      functionName: 'getBorrowBalance',
+      args: [USER]
+    })
+    const result = await client.call({
+      to: LENDING_PROXY,
+      data
+    })
+    console.log(`✅ getBorrowBalance exists. Result: ${result.data}`)
+  } catch (e) {
+    console.log(`❌ getBorrowBalance failed: ${e.message.slice(0, 100)}...`)
+  }
+
+    // Check getTotalSupply
+  try {
+    const data = encodeFunctionData({
+      abi: parseAbi(['function getTotalSupply() view returns (uint256)']),
+      functionName: 'getTotalSupply',
+      args: []
+    })
+    const result = await client.call({
+      to: LENDING_PROXY,
+      data
+    })
+    console.log(`✅ getTotalSupply exists. Result: ${result.data}`)
+  } catch (e) {
+    console.log(`❌ getTotalSupply failed: ${e.message.slice(0, 100)}...`)
+  }
+
+      // Check getTotalLiquidity
+  try {
+    const data = encodeFunctionData({
+      abi: parseAbi(['function getTotalLiquidity() view returns (uint256)']),
+      functionName: 'getTotalLiquidity',
+      args: []
+    })
+    const result = await client.call({
+      to: LENDING_PROXY,
+      data
+    })
+    console.log(`✅ getTotalLiquidity exists. Result: ${result.data}`)
+  } catch (e) {
+    console.log(`❌ getTotalLiquidity failed: ${e.message.slice(0, 100)}...`)
+  }
+
+}
+
+main()