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-contract-view-functions.js

@@ -0,0 +1,107 @@
+import { createPublicClient, http, getAddress, decodeErrorResult } from 'viem'
+import { arbitrumSepolia } from 'viem/chains'
+
+const client = createPublicClient({
+  chain: arbitrumSepolia,
+  transport: http('https://api.zan.top/node/v1/arb/sepolia/baf84c429d284bb5b676cb8c9ca21c07')
+})
+
+const LENDING_PROXY = getAddress('0xCb4E7B1069F6C26A1c27523ce4c8dfD884552d1D')
+const USER = getAddress('0xa013422A5918CD099C63c8CC35283EACa99a705d')
+const YT_A = getAddress('0x97204190B35D9895a7a47aa7BaC61ac08De3cF05')
+
+async function testWithDetails(name, abi, args) {
+  console.log(`\n=== 测试 ${name} ===`)
+  try {
+    const result = await client.readContract({
+      address: LENDING_PROXY,
+      abi: [abi],
+      functionName: name,
+      args: args
+    })
+    console.log('✓ 成功:', result)
+    return result
+  } catch (error) {
+    console.log('✗ 失败')
+    console.log('错误类型:', error.name)
+    console.log('错误消息:', error.message.split('\n')[0])
+
+    // 尝试解码错误
+    if (error.data) {
+      console.log('错误数据:', error.data)
+    }
+
+    // 打印完整堆栈
+    console.log('\n完整错误:')
+    console.log(error)
+  }
+}
+
+async function main() {
+  console.log('诊断 Lending 合约 View 函数\n')
+  console.log('合约:', LENDING_PROXY)
+  console.log('用户:', USER)
+  console.log('抵押品:', YT_A)
+
+  // 测试 1: borrowBalanceOf (已知能工作)
+  await testWithDetails('borrowBalanceOf', {
+    inputs: [{ name: 'account', type: 'address' }],
+    name: 'borrowBalanceOf',
+    outputs: [{ name: '', type: 'uint256' }],
+    stateMutability: 'view',
+    type: 'function'
+  }, [USER])
+
+  // 测试 2: getUserAccountData
+  await testWithDetails('getUserAccountData', {
+    inputs: [{ name: '_user', type: 'address' }],
+    name: 'getUserAccountData',
+    outputs: [
+      { name: 'totalCollateralValue', type: 'uint256' },
+      { name: 'totalBorrowValue', type: 'uint256' },
+      { name: 'availableToBorrow', type: 'uint256' },
+      { name: 'healthFactor', type: 'uint256' }
+    ],
+    stateMutability: 'view',
+    type: 'function'
+  }, [USER])
+
+  // 测试 3: getUserCollateral
+  await testWithDetails('getUserCollateral', {
+    inputs: [
+      { name: '_user', type: 'address' },
+      { name: '_collateralAsset', type: 'address' }
+    ],
+    name: 'getUserCollateral',
+    outputs: [{ name: '', type: 'uint256' }],
+    stateMutability: 'view',
+    type: 'function'
+  }, [USER, YT_A])
+
+  // 测试 4: getCollateralConfig (检查资产是否配置)
+  await testWithDetails('getCollateralConfig', {
+    inputs: [{ name: '_asset', type: 'address' }],
+    name: 'getCollateralConfig',
+    outputs: [
+      { name: 'isActive', type: 'bool' },
+      { name: 'decimals', type: 'uint8' },
+      { name: 'borrowCollateralFactor', type: 'uint64' },
+      { name: 'liquidateCollateralFactor', type: 'uint64' },
+      { name: 'liquidationFactor', type: 'uint64' },
+      { name: 'supplyCap', type: 'uint128' }
+    ],
+    stateMutability: 'view',
+    type: 'function'
+  }, [YT_A])
+
+  // 测试 5: paused (检查是否暂停)
+  await testWithDetails('paused', {
+    inputs: [],
+    name: 'paused',
+    outputs: [{ name: '', type: 'bool' }],
+    stateMutability: 'view',
+    type: 'function'
+  }, [])
+}
+
+main()