Fix: WalletSelector v2 - 改进钱包检测时序、添加刷新按钮、手动地址输入回退、错误码精准处理（user_rejected/wallet_pending）；三个域名（pre-sale/ico/trc-ico.newassetchain.io）全部部署到AI服务器43.224.155.27，DNS解析已生效

1. 修复钱包连接状态共享问题（useWallet提升到Home顶层）
2. 配置BSC/ETH多节点RPC故障转移池（9+7个节点）
3. 添加TRC20购买Telegram通知（Bot Token/Chat ID通过管理后台配置）
4. 管理员后台新增Site Settings标签页（预售参数、首页内容、Telegram配置）
5. 修复Admin.tsx语法错误

client/src/components/WalletSelector.tsx

@@ -0,0 +1,522 @@
+// NAC XIC Presale — Wallet Selector Component
+// Detects installed EVM wallets and shows connect/install buttons for each
+// v2: improved detection timing, refresh button, manual address fallback
+
+import { useState, useEffect, useCallback } from "react";
+
+type Lang = "zh" | "en";
+
+interface WalletInfo {
+  id: string;
+  name: string;
+  icon: React.ReactNode;
+  installUrl: string;
+  isInstalled: () => boolean;
+  connect: () => Promise<string | null>;
+}
+
+interface WalletSelectorProps {
+  lang: Lang;
+  onAddressDetected: (address: string) => void;
+  connectedAddress?: string;
+  compact?: boolean; // compact mode for BSC/ETH panel
+}
+
+// ── Wallet Icons ──────────────────────────────────────────────────────────────
+
+const MetaMaskIcon = () => (
+  <svg width="24" height="24" viewBox="0 0 35 33" fill="none">
+    <path d="M32.96 1L19.4 10.7l2.5-5.9L32.96 1z" fill="#E17726" stroke="#E17726" strokeWidth="0.25" strokeLinecap="round" strokeLinejoin="round"/>
+    <path d="M2.04 1l13.46 9.8-2.38-5.99L2.04 1z" fill="#E27625" stroke="#E27625" strokeWidth="0.25" strokeLinecap="round" strokeLinejoin="round"/>
+    <path d="M28.22 23.53l-3.61 5.53 7.73 2.13 2.22-7.54-6.34-.12z" fill="#E27625" stroke="#E27625" strokeWidth="0.25" strokeLinecap="round" strokeLinejoin="round"/>
+    <path d="M.44 23.65l2.2 7.54 7.72-2.13-3.6-5.53-6.32.12z" fill="#E27625" stroke="#E27625" strokeWidth="0.25" strokeLinecap="round" strokeLinejoin="round"/>
+    <path d="M9.97 14.46l-2.16 3.26 7.69.35-.26-8.27-5.27 4.66z" fill="#E27625" stroke="#E27625" strokeWidth="0.25" strokeLinecap="round" strokeLinejoin="round"/>
+    <path d="M25.03 14.46l-5.35-4.75-.17 8.36 7.68-.35-2.16-3.26z" fill="#E27625" stroke="#E27625" strokeWidth="0.25" strokeLinecap="round" strokeLinejoin="round"/>
+    <path d="M10.36 29.06l4.63-2.24-3.99-3.11-.64 5.35z" fill="#E27625" stroke="#E27625" strokeWidth="0.25" strokeLinecap="round" strokeLinejoin="round"/>
+    <path d="M20.01 26.82l4.63 2.24-.64-5.35-3.99 3.11z" fill="#E27625" stroke="#E27625" strokeWidth="0.25" strokeLinecap="round" strokeLinejoin="round"/>
+  </svg>
+);
+
+const TrustWalletIcon = () => (
+  <svg width="24" height="24" viewBox="0 0 24 24" fill="none">
+    <circle cx="12" cy="12" r="12" fill="#3375BB"/>
+    <path d="M12 4.5L6 7.5v5c0 3.31 2.57 6.41 6 7.5 3.43-1.09 6-4.19 6-7.5v-5L12 4.5z" fill="white" fillOpacity="0.9"/>
+    <path d="M10.5 12.5l1.5 1.5 3-3" stroke="#3375BB" strokeWidth="1.5" strokeLinecap="round" strokeLinejoin="round"/>
+  </svg>
+);
+
+const OKXIcon = () => (
+  <svg width="24" height="24" viewBox="0 0 24 24" fill="none">
+    <rect width="24" height="24" rx="6" fill="#000"/>
+    <rect x="4" y="4" width="6" height="6" rx="1" fill="white"/>
+    <rect x="14" y="4" width="6" height="6" rx="1" fill="white"/>
+    <rect x="4" y="14" width="6" height="6" rx="1" fill="white"/>
+    <rect x="14" y="14" width="6" height="6" rx="1" fill="white"/>
+    <rect x="9" y="9" width="6" height="6" rx="1" fill="white"/>
+  </svg>
+);
+
+const CoinbaseIcon = () => (
+  <svg width="24" height="24" viewBox="0 0 24 24" fill="none">
+    <circle cx="12" cy="12" r="12" fill="#0052FF"/>
+    <circle cx="12" cy="12" r="7" fill="white"/>
+    <rect x="9" y="10.5" width="6" height="3" rx="1.5" fill="#0052FF"/>
+  </svg>
+);
+
+const TokenPocketIcon = () => (
+  <svg width="24" height="24" viewBox="0 0 24 24" fill="none">
+    <rect width="24" height="24" rx="6" fill="#2980FE"/>
+    <path d="M7 8h5a3 3 0 0 1 0 6H7V8z" fill="white"/>
+    <rect x="7" y="15" width="2.5" height="3" rx="1" fill="white"/>
+  </svg>
+);
+
+const BitgetIcon = () => (
+  <svg width="24" height="24" viewBox="0 0 24 24" fill="none">
+    <rect width="24" height="24" rx="6" fill="#00F0FF"/>
+    <path d="M7 8h5a3 3 0 0 1 0 6H7V8z" fill="#000"/>
+    <path d="M12 14h2a3 3 0 0 1 0 6h-2v-6z" fill="#000"/>
+  </svg>
+);
+
+// ── Provider detection helpers ────────────────────────────────────────────────
+
+type EthProvider = {
+  isMetaMask?: boolean;
+  isTrust?: boolean;
+  isTrustWallet?: boolean;
+  isOKExWallet?: boolean;
+  isOkxWallet?: boolean;
+  isCoinbaseWallet?: boolean;
+  isTokenPocket?: boolean;
+  isBitkeep?: boolean;
+  isBitgetWallet?: boolean;
+  providers?: EthProvider[];
+  request: (args: { method: string; params?: unknown[] }) => Promise<unknown>;
+};
+
+function getEth(): EthProvider | null {
+  if (typeof window === "undefined") return null;
+  return (window as unknown as { ethereum?: EthProvider }).ethereum ?? null;
+}
+
+function getOKX(): EthProvider | null {
+  if (typeof window === "undefined") return null;
+  return (window as unknown as { okxwallet?: EthProvider }).okxwallet ?? null;
+}
+
+function getBitget(): EthProvider | null {
+  if (typeof window === "undefined") return null;
+  const w = window as unknown as { bitkeep?: { ethereum?: EthProvider } };
+  return w.bitkeep?.ethereum ?? null;
+}
+
+// Find a specific provider from the providers array or direct injection
+function findProvider(predicate: (p: EthProvider) => boolean): EthProvider | null {
+  const eth = getEth();
+  if (!eth) return null;
+  if (eth.providers && Array.isArray(eth.providers)) {
+    return eth.providers.find(predicate) ?? null;
+  }
+  return predicate(eth) ? eth : null;
+}
+
+async function requestAccounts(provider: EthProvider): Promise<string | null> {
+  try {
+    const accounts = await provider.request({ method: "eth_requestAccounts" }) as string[];
+    return accounts?.[0] ?? null;
+  } catch (err: unknown) {
+    const error = err as { code?: number; message?: string };
+    // User rejected
+    if (error?.code === 4001) throw new Error("user_rejected");
+    // MetaMask not initialized / locked
+    if (error?.code === -32002) throw new Error("wallet_pending");
+    throw err;
+  }
+}
+
+// Check if MetaMask is installed but not yet initialized (no accounts, no unlock)
+async function isWalletInitialized(provider: EthProvider): Promise<boolean> {
+  try {
+    const accounts = await provider.request({ method: "eth_accounts" }) as string[];
+    // If we can get accounts (even empty array), wallet is initialized
+    return true;
+  } catch {
+    return false;
+  }
+}
+
+// ── Wallet definitions ────────────────────────────────────────────────────────
+
+function buildWallets(): WalletInfo[] {
+  return [
+    {
+      id: "metamask",
+      name: "MetaMask",
+      icon: <MetaMaskIcon />,
+      installUrl: "https://metamask.io/download/",
+      isInstalled: () => !!findProvider(p => !!p.isMetaMask),
+      connect: async () => {
+        const p = findProvider(p => !!p.isMetaMask) ?? getEth();
+        return p ? requestAccounts(p) : null;
+      },
+    },
+    {
+      id: "trust",
+      name: "Trust Wallet",
+      icon: <TrustWalletIcon />,
+      installUrl: "https://trustwallet.com/download",
+      isInstalled: () => !!findProvider(p => !!(p.isTrust || p.isTrustWallet)),
+      connect: async () => {
+        const p = findProvider(p => !!(p.isTrust || p.isTrustWallet)) ?? getEth();
+        return p ? requestAccounts(p) : null;
+      },
+    },
+    {
+      id: "okx",
+      name: "OKX Wallet",
+      icon: <OKXIcon />,
+      installUrl: "https://www.okx.com/web3",
+      isInstalled: () => !!(getOKX() || findProvider(p => !!(p.isOKExWallet || p.isOkxWallet))),
+      connect: async () => {
+        const p = getOKX() ?? findProvider(p => !!(p.isOKExWallet || p.isOkxWallet));
+        return p ? requestAccounts(p) : null;
+      },
+    },
+    {
+      id: "coinbase",
+      name: "Coinbase Wallet",
+      icon: <CoinbaseIcon />,
+      installUrl: "https://www.coinbase.com/wallet/downloads",
+      isInstalled: () => !!findProvider(p => !!p.isCoinbaseWallet),
+      connect: async () => {
+        const p = findProvider(p => !!p.isCoinbaseWallet) ?? getEth();
+        return p ? requestAccounts(p) : null;
+      },
+    },
+    {
+      id: "tokenpocket",
+      name: "TokenPocket",
+      icon: <TokenPocketIcon />,
+      installUrl: "https://www.tokenpocket.pro/en/download/app",
+      isInstalled: () => !!findProvider(p => !!p.isTokenPocket),
+      connect: async () => {
+        const p = findProvider(p => !!p.isTokenPocket) ?? getEth();
+        return p ? requestAccounts(p) : null;
+      },
+    },
+    {
+      id: "bitget",
+      name: "Bitget Wallet",
+      icon: <BitgetIcon />,
+      installUrl: "https://web3.bitget.com/en/wallet-download",
+      isInstalled: () => !!(getBitget() || findProvider(p => !!(p.isBitkeep || p.isBitgetWallet))),
+      connect: async () => {
+        const p = getBitget() ?? findProvider(p => !!(p.isBitkeep || p.isBitgetWallet));
+        return p ? requestAccounts(p) : null;
+      },
+    },
+  ];
+}
+
+// Validate Ethereum address format
+function isValidEthAddress(addr: string): boolean {
+  return /^0x[0-9a-fA-F]{40}$/.test(addr);
+}
+
+// ── WalletSelector Component ──────────────────────────────────────────────────
+
+export function WalletSelector({ lang, onAddressDetected, connectedAddress, compact = false }: WalletSelectorProps) {
+  const [wallets, setWallets] = useState<WalletInfo[]>([]);
+  const [connecting, setConnecting] = useState<string | null>(null);
+  const [error, setError] = useState<string | null>(null);
+  const [detecting, setDetecting] = useState(true);
+  const [showManual, setShowManual] = useState(false);
+  const [manualAddress, setManualAddress] = useState("");
+  const [manualError, setManualError] = useState<string | null>(null);
+
+  const detectWallets = useCallback(() => {
+    setDetecting(true);
+    setError(null);
+    // Wait for wallet extensions to fully inject (up to 1500ms)
+    const timer = setTimeout(() => {
+      setWallets(buildWallets());
+      setDetecting(false);
+    }, 1500);
+    return () => clearTimeout(timer);
+  }, []);
+
+  useEffect(() => {
+    const cleanup = detectWallets();
+    return cleanup;
+  }, [detectWallets]);
+
+  const handleConnect = async (wallet: WalletInfo) => {
+    setConnecting(wallet.id);
+    setError(null);
+    try {
+      const address = await wallet.connect();
+      if (address) {
+        onAddressDetected(address);
+      } else {
+        setError(lang === "zh" ? "未获取到地址，请重试" : "No address returned, please try again");
+      }
+    } catch (err: unknown) {
+      const error = err as Error;
+      if (error.message === "user_rejected") {
+        setError(lang === "zh" ? "已取消连接" : "Connection cancelled");
+      } else if (error.message === "wallet_pending") {
+        setError(lang === "zh" ? "钱包请求处理中，请检查钱包弹窗" : "Wallet request pending, please check your wallet popup");
+      } else if (error.message?.includes("not initialized") || error.message?.includes("setup")) {
+        setError(lang === "zh" 
+          ? "请先完成钱包初始化设置，然后刷新页面重试" 
+          : "Please complete wallet setup first, then refresh the page");
+      } else {
+        setError(lang === "zh" ? "连接失败，请重试" : "Connection failed, please try again");
+      }
+    } finally {
+      setConnecting(null);
+    }
+  };
+
+  const handleManualSubmit = () => {
+    const addr = manualAddress.trim();
+    if (!addr) {
+      setManualError(lang === "zh" ? "请输入钱包地址" : "Please enter wallet address");
+      return;
+    }
+    if (!isValidEthAddress(addr)) {
+      setManualError(lang === "zh" ? "地址格式无效，请输入正确的以太坊地址（0x开头，42位）" : "Invalid address format. Must be 0x followed by 40 hex characters");
+      return;
+    }
+    setManualError(null);
+    onAddressDetected(addr);
+  };
+
+  const installedWallets = wallets.filter(w => w.isInstalled());
+  const notInstalledWallets = wallets.filter(w => !w.isInstalled());
+
+  // If connected address is already set, show compact confirmation
+  if (connectedAddress) {
+    return (
+      <div
+        className="rounded-xl p-3 flex items-center gap-3"
+        style={{ background: "rgba(0,230,118,0.08)", border: "1px solid rgba(0,230,118,0.25)" }}
+      >
+        <div className="w-2 h-2 rounded-full bg-green-400 flex-shrink-0" />
+        <div className="flex-1 min-w-0">
+          <p className="text-xs text-green-400 font-semibold">
+            {lang === "zh" ? "钱包已连接" : "Wallet Connected"}
+          </p>
+          <p className="text-xs text-white/50 font-mono truncate">{connectedAddress}</p>
+        </div>
+      </div>
+    );
+  }
+
+  return (
+    <div className="space-y-3">
+      <div className="flex items-center justify-between">
+        <p className="text-xs font-semibold text-white/60 uppercase tracking-wider">
+          {lang === "zh" ? "选择钱包自动填充地址" : "Select wallet to auto-fill address"}
+        </p>
+        {/* Refresh detection button */}
+        <button
+          onClick={detectWallets}
+          disabled={detecting}
+          className="flex items-center gap-1 text-xs px-2 py-1 rounded-lg transition-all hover:opacity-80"
+          style={{ background: "rgba(0,212,255,0.1)", color: "rgba(0,212,255,0.7)", border: "1px solid rgba(0,212,255,0.2)" }}
+          title={lang === "zh" ? "重新检测钱包" : "Re-detect wallets"}
+        >
+          <svg
+            width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2"
+            className={detecting ? "animate-spin" : ""}
+          >
+            <path d="M23 4v6h-6M1 20v-6h6"/>
+            <path d="M3.51 9a9 9 0 0 1 14.85-3.36L23 10M1 14l4.64 4.36A9 9 0 0 0 20.49 15"/>
+          </svg>
+          {detecting 
+            ? (lang === "zh" ? "检测中..." : "Detecting...") 
+            : (lang === "zh" ? "刷新" : "Refresh")}
+        </button>
+      </div>
+
+      {/* Loading state */}
+      {detecting && (
+        <div className="flex items-center justify-center py-4 gap-2">
+          <svg className="animate-spin w-4 h-4 text-white/40" fill="none" viewBox="0 0 24 24">
+            <circle className="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" strokeWidth="4"/>
+            <path className="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4z"/>
+          </svg>
+          <span className="text-xs text-white/40">
+            {lang === "zh" ? "正在检测钱包..." : "Detecting wallets..."}
+          </span>
+        </div>
+      )}
+
+      {/* Installed wallets */}
+      {!detecting && installedWallets.length > 0 && (
+        <div className="space-y-2">
+          {installedWallets.map(wallet => (
+            <button
+              key={wallet.id}
+              onClick={() => handleConnect(wallet)}
+              disabled={connecting === wallet.id}
+              className="w-full flex items-center gap-3 px-4 py-3 rounded-xl transition-all hover:opacity-90 active:scale-[0.98]"
+              style={{
+                background: "rgba(0,212,255,0.08)",
+                border: "1px solid rgba(0,212,255,0.3)",
+              }}
+            >
+              <span className="flex-shrink-0">{wallet.icon}</span>
+              <span className="flex-1 text-left text-sm font-semibold text-white">{wallet.name}</span>
+              <span
+                className="text-xs px-2 py-0.5 rounded-full font-medium"
+                style={{ background: "rgba(0,212,255,0.15)", color: "#00d4ff" }}
+              >
+                {lang === "zh" ? "已安装" : "Installed"}
+              </span>
+              {connecting === wallet.id ? (
+                <svg className="animate-spin w-4 h-4 text-white/60 flex-shrink-0" fill="none" viewBox="0 0 24 24">
+                  <circle className="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" strokeWidth="4"/>
+                  <path className="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4z"/>
+                </svg>
+              ) : (
+                <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="rgba(0,212,255,0.7)" strokeWidth="2" className="flex-shrink-0">
+                  <path d="M5 12h14M12 5l7 7-7 7"/>
+                </svg>
+              )}
+            </button>
+          ))}
+        </div>
+      )}
+
+      {/* No wallets installed */}
+      {!detecting && installedWallets.length === 0 && (
+        <div
+          className="rounded-xl p-4 text-center"
+          style={{ background: "rgba(255,255,255,0.04)", border: "1px dashed rgba(255,255,255,0.15)" }}
+        >
+          <p className="text-sm text-white/50 mb-1">
+            {lang === "zh" ? "未检测到 EVM 钱包" : "No EVM wallet detected"}
+          </p>
+          <p className="text-xs text-white/30 mb-3">
+            {lang === "zh" 
+              ? "请安装以下任一钱包，完成设置后点击上方「刷新」按钮" 
+              : "Install any wallet below, then click Refresh above after setup"}
+          </p>
+          <p className="text-xs text-amber-400/70">
+            {lang === "zh" 
+              ? "💡 已安装MetaMask？请先完成钱包初始化（创建或导入钱包），再点击刷新" 
+              : "💡 Have MetaMask? Complete wallet setup (create or import) first, then click Refresh"}
+          </p>
+        </div>
+      )}
+
+      {/* Not-installed wallets — show install links */}
+      {!detecting && !compact && notInstalledWallets.length > 0 && (
+        <div className="space-y-1">
+          <p className="text-xs text-white/30 mt-2">
+            {lang === "zh" ? "未安装（点击安装）" : "Not installed (click to install)"}
+          </p>
+          <div className="grid grid-cols-3 gap-2">
+            {notInstalledWallets.map(wallet => (
+              <a
+                key={wallet.id}
+                href={wallet.installUrl}
+                target="_blank"
+                rel="noopener noreferrer"
+                className="flex flex-col items-center gap-1.5 p-2.5 rounded-xl transition-all hover:opacity-80"
+                style={{
+                  background: "rgba(255,255,255,0.04)",
+                  border: "1px solid rgba(255,255,255,0.08)",
+                }}
+              >
+                <span className="opacity-40">{wallet.icon}</span>
+                <span className="text-xs text-white/30 text-center leading-tight">{wallet.name}</span>
+              </a>
+            ))}
+          </div>
+        </div>
+      )}
+
+      {/* In compact mode, show install links inline */}
+      {!detecting && compact && notInstalledWallets.length > 0 && installedWallets.length === 0 && (
+        <div className="flex flex-wrap gap-2">
+          {notInstalledWallets.slice(0, 4).map(wallet => (
+            <a
+              key={wallet.id}
+              href={wallet.installUrl}
+              target="_blank"
+              rel="noopener noreferrer"
+              className="flex items-center gap-1.5 px-3 py-1.5 rounded-lg text-xs transition-all hover:opacity-80"
+              style={{
+                background: "rgba(255,255,255,0.05)",
+                border: "1px solid rgba(255,255,255,0.1)",
+                color: "rgba(255,255,255,0.4)",
+              }}
+            >
+              <span className="opacity-50">{wallet.icon}</span>
+              {lang === "zh" ? `安装 ${wallet.name}` : `Install ${wallet.name}`}
+            </a>
+          ))}
+        </div>
+      )}
+
+      {error && (
+        <p className="text-xs text-red-400 text-center">{error}</p>
+      )}
+
+      {/* Manual address input — divider */}
+      <div className="pt-1">
+        <button
+          onClick={() => { setShowManual(!showManual); setManualError(null); }}
+          className="w-full text-xs text-white/30 hover:text-white/50 transition-colors py-1 flex items-center justify-center gap-1"
+        >
+          <svg width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2">
+            <path d="M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7"/>
+            <path d="M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z"/>
+          </svg>
+          {showManual 
+            ? (lang === "zh" ? "收起手动输入" : "Hide manual input")
+            : (lang === "zh" ? "手动输入钱包地址" : "Enter address manually")}
+        </button>
+
+        {showManual && (
+          <div className="mt-2 space-y-2">
+            <p className="text-xs text-white/40 text-center">
+              {lang === "zh" 
+                ? "直接输入您的 EVM 钱包地址（0x 开头）" 
+                : "Enter your EVM wallet address (starts with 0x)"}
+            </p>
+            <div className="flex gap-2">
+              <input
+                type="text"
+                value={manualAddress}
+                onChange={e => { setManualAddress(e.target.value); setManualError(null); }}
+                placeholder={lang === "zh" ? "0x..." : "0x..."}
+                className="flex-1 px-3 py-2 rounded-lg text-xs font-mono text-white/80 outline-none focus:ring-1"
+                style={{
+                  background: "rgba(255,255,255,0.06)",
+                  border: manualError ? "1px solid rgba(255,80,80,0.5)" : "1px solid rgba(255,255,255,0.12)",
+                }}
+                onKeyDown={e => e.key === "Enter" && handleManualSubmit()}
+              />
+              <button
+                onClick={handleManualSubmit}
+                className="px-3 py-2 rounded-lg text-xs font-semibold transition-all hover:opacity-90 active:scale-95 whitespace-nowrap"
+                style={{ background: "rgba(0,212,255,0.15)", color: "#00d4ff", border: "1px solid rgba(0,212,255,0.3)" }}
+              >
+                {lang === "zh" ? "确认" : "Confirm"}
+              </button>
+            </div>
+            {manualError && (
+              <p className="text-xs text-red-400">{manualError}</p>
+            )}
+          </div>
+        )}
+      </div>
+    </div>
+  );
+}

client/src/hooks/useWallet.ts

@@ -1,7 +1,8 @@
 // NAC XIC Presale — Wallet Connection Hook
-// Supports MetaMask / any EVM-compatible wallet (BSC + ETH)
+// Supports MetaMask, Trust Wallet, OKX Wallet, Coinbase Wallet, and all EVM-compatible wallets
+// Robust auto-detect with retry, multi-provider support, and graceful fallback
 
-import { useState, useEffect, useCallback } from "react";
+import { useState, useEffect, useCallback, useRef } from "react";
 import { BrowserProvider, JsonRpcSigner, Eip1193Provider } from "ethers";
 import { shortenAddress, switchToNetwork } from "@/lib/contracts";
 
@@ -29,51 +30,124 @@ const INITIAL_STATE: WalletState = {
   error: null,
 };
 
+// Detect the best available EVM provider across all major wallets
+function detectProvider(): Eip1193Provider | null {
+  if (typeof window === "undefined") return null;
+
+  // Check for multiple injected providers (e.g., MetaMask + Coinbase both installed)
+  const w = window as unknown as Record<string, unknown>;
+  const eth = w.ethereum as (Eip1193Provider & { providers?: Eip1193Provider[]; isMetaMask?: boolean; isTrust?: boolean; isOKExWallet?: boolean; isCoinbaseWallet?: boolean }) | undefined;
+
+  if (!eth) {
+    // Fallback: check wallet-specific globals
+    if (w.okxwallet) return w.okxwallet as Eip1193Provider;
+    if (w.coinbaseWalletExtension) return w.coinbaseWalletExtension as Eip1193Provider;
+    return null;
+  }
+
+  // If multiple providers are injected (common when multiple extensions installed)
+  if (eth.providers && Array.isArray(eth.providers) && eth.providers.length > 0) {
+    // Prefer MetaMask if available, otherwise use first provider
+    const metamask = eth.providers.find((p: Eip1193Provider & { isMetaMask?: boolean }) => p.isMetaMask);
+    return metamask ?? eth.providers[0];
+  }
+
+  return eth;
+}
+
+// Build wallet state from a provider and accounts
+async function buildWalletState(
+  rawProvider: Eip1193Provider,
+  address: string
+): Promise<Partial<WalletState>> {
+  const provider = new BrowserProvider(rawProvider);
+  let chainId: number | null = null;
+  let signer: JsonRpcSigner | null = null;
+
+  try {
+    const network = await provider.getNetwork();
+    chainId = Number(network.chainId);
+  } catch {
+    // Some wallets don't support getNetwork immediately — try eth_chainId directly
+    try {
+      const chainHex = await (rawProvider as { request: (args: { method: string }) => Promise<string> }).request({ method: "eth_chainId" });
+      chainId = parseInt(chainHex, 16);
+    } catch {
+      chainId = null;
+    }
+  }
+
+  try {
+    signer = await provider.getSigner();
+  } catch {
+    // getSigner may fail on some wallets before full connection — that's OK
+    signer = null;
+  }
+
+  return {
+    address,
+    shortAddress: shortenAddress(address),
+    isConnected: true,
+    chainId,
+    provider,
+    signer,
+    isConnecting: false,
+    error: null,
+  };
+}
+
 export function useWallet() {
   const [state, setState] = useState<WalletState>(INITIAL_STATE);
+  const retryRef = useRef<ReturnType<typeof setTimeout> | null>(null);
+  const mountedRef = useRef(true);
 
+  useEffect(() => {
+    mountedRef.current = true;
+    return () => {
+      mountedRef.current = false;
+      if (retryRef.current) clearTimeout(retryRef.current);
+    };
+  }, []);
+
+  // ── Connect (explicit user action) ─────────────────────────────────────────
   const connect = useCallback(async () => {
-    if (!window.ethereum) {
-      setState(s => ({ ...s, error: "Please install MetaMask or a compatible wallet." }));
+    const rawProvider = detectProvider();
+    if (!rawProvider) {
+      setState(s => ({ ...s, error: "请安装 MetaMask 或其他 EVM 兼容钱包 / Please install MetaMask or a compatible wallet." }));
       return;
     }
     setState(s => ({ ...s, isConnecting: true, error: null }));
     try {
-      const provider = new BrowserProvider(window.ethereum as Eip1193Provider);
-      const accounts = await provider.send("eth_requestAccounts", []);
-      const network = await provider.getNetwork();
-      const signer = await provider.getSigner();
-      const address = accounts[0] as string;
-      setState({
-        address,
-        shortAddress: shortenAddress(address),
-        isConnected: true,
-        chainId: Number(network.chainId),
-        provider,
-        signer,
-        isConnecting: false,
-        error: null,
+      // Request accounts — this triggers the wallet popup
+      const accounts = await (rawProvider as { request: (args: { method: string; params?: unknown[] }) => Promise<string[]> }).request({
+        method: "eth_requestAccounts",
+        params: [],
       });
+      if (!accounts || accounts.length === 0) throw new Error("No accounts returned");
+      const partial = await buildWalletState(rawProvider, accounts[0]);
+      if (mountedRef.current) setState({ ...INITIAL_STATE, ...partial });
     } catch (err: unknown) {
-      setState(s => ({
-        ...s,
-        isConnecting: false,
-        error: (err as Error).message || "Failed to connect wallet",
-      }));
+      const msg = (err as Error).message || "Failed to connect wallet";
+      if (mountedRef.current) setState(s => ({ ...s, isConnecting: false, error: msg }));
     }
   }, []);
 
+  // ── Disconnect ──────────────────────────────────────────────────────────────
   const disconnect = useCallback(() => {
     setState(INITIAL_STATE);
   }, []);
 
+  // ── Switch Network ──────────────────────────────────────────────────────────
   const switchNetwork = useCallback(async (chainId: number) => {
     try {
       await switchToNetwork(chainId);
-      if (window.ethereum) {
-        const provider = new BrowserProvider(window.ethereum as Eip1193Provider);
+      const rawProvider = detectProvider();
+      if (rawProvider) {
+        const provider = new BrowserProvider(rawProvider);
         const network = await provider.getNetwork();
-        const signer = await provider.getSigner();
+        let signer: JsonRpcSigner | null = null;
+        try { signer = await provider.getSigner(); } catch { /* ignore */ }
+        if (mountedRef.current) {
           setState(s => ({
             ...s,
             chainId: Number(network.chainId),
@@ -82,34 +156,120 @@ export function useWallet() {
             error: null,
           }));
         }
+      }
     } catch (err: unknown) {
-      setState(s => ({ ...s, error: (err as Error).message }));
+      if (mountedRef.current) setState(s => ({ ...s, error: (err as Error).message }));
     }
   }, []);
 
-  // Listen for account/chain changes
+  // ── Auto-detect on page load (silent, no popup) ─────────────────────────────
   useEffect(() => {
-    if (!window.ethereum) return;
-    const handleAccountsChanged = (accounts: unknown) => {
+    let cancelled = false;
+
+    const tryAutoDetect = async (attempt: number) => {
+      if (cancelled) return;
+
+      const rawProvider = detectProvider();
+      if (!rawProvider) {
+        // Wallet extension may not be injected yet — retry up to 3 times
+        if (attempt < 3) {
+          retryRef.current = setTimeout(() => tryAutoDetect(attempt + 1), 800 * attempt);
+        }
+        return;
+      }
+
+      try {
+        const accounts = await (rawProvider as { request: (args: { method: string }) => Promise<string[]> }).request({
+          method: "eth_accounts", // Silent — no popup
+        });
+        if (cancelled) return;
+        if (accounts && accounts.length > 0) {
+          const partial = await buildWalletState(rawProvider, accounts[0]);
+          if (!cancelled && mountedRef.current) {
+            setState({ ...INITIAL_STATE, ...partial });
+          }
+        } else if (attempt < 3) {
+          // Accounts empty — wallet might not have finished loading, retry
+          retryRef.current = setTimeout(() => tryAutoDetect(attempt + 1), 1000 * attempt);
+        }
+      } catch {
+        // Silently ignore — user hasn't connected yet
+      }
+    };
+
+    // Small initial delay to let wallet extensions inject themselves
+    retryRef.current = setTimeout(() => tryAutoDetect(1), 300);
+
+    return () => {
+      cancelled = true;
+      if (retryRef.current) clearTimeout(retryRef.current);
+    };
+  }, []);
+
+  // ── Listen for account / chain changes ─────────────────────────────────────
+  useEffect(() => {
+    const rawProvider = detectProvider();
+    if (!rawProvider) return;
+
+    const eth = rawProvider as {
+      on?: (event: string, handler: (data: unknown) => void) => void;
+      removeListener?: (event: string, handler: (data: unknown) => void) => void;
+    };
+    if (!eth.on) return;
+
+    const handleAccountsChanged = async (accounts: unknown) => {
       const accs = accounts as string[];
-      if (accs.length === 0) {
+      if (!mountedRef.current) return;
+      if (!accs || accs.length === 0) {
         setState(INITIAL_STATE);
       } else {
+        // Re-build full state with new address
+        try {
+          const partial = await buildWalletState(rawProvider, accs[0]);
+          if (mountedRef.current) setState({ ...INITIAL_STATE, ...partial });
+        } catch {
+          if (mountedRef.current) {
             setState(s => ({
               ...s,
               address: accs[0],
               shortAddress: shortenAddress(accs[0]),
+              isConnected: true,
             }));
           }
+        }
+      }
     };
-    const handleChainChanged = () => {
+
+    const handleChainChanged = async () => {
+      if (!mountedRef.current) return;
+      // Re-fetch network info instead of reloading the page
+      try {
+        const provider = new BrowserProvider(rawProvider);
+        const network = await provider.getNetwork();
+        let signer: JsonRpcSigner | null = null;
+        try { signer = await provider.getSigner(); } catch { /* ignore */ }
+        if (mountedRef.current) {
+          setState(s => ({
+            ...s,
+            chainId: Number(network.chainId),
+            provider,
+            signer,
+          }));
+        }
+      } catch {
+        // If we can't get network info, reload as last resort
         window.location.reload();
+      }
     };
-    window.ethereum.on("accountsChanged", handleAccountsChanged);
-    window.ethereum.on("chainChanged", handleChainChanged);
+
+    eth.on("accountsChanged", handleAccountsChanged);
+    eth.on("chainChanged", handleChainChanged);
+
     return () => {
-      window.ethereum?.removeListener("accountsChanged", handleAccountsChanged);
-      window.ethereum?.removeListener("chainChanged", handleChainChanged);
+      if (eth.removeListener) {
+        eth.removeListener("accountsChanged", handleAccountsChanged);
+        eth.removeListener("chainChanged", handleChainChanged);
+      }
     };
   }, []);
 

client/src/pages/Admin.tsx

@@ -119,13 +119,316 @@ function LoginForm({ onLogin }: { onLogin: (token: string) => void }) {
   );
 }
 
-// ─── Main Dashboard ───────────────────────────────────────────────────────────
+// ─── Main D// ─── Settings Panel ───────────────────────────────────────────────
+function SettingsPanel({ token }: { token: string }) {
+  const { data: configData, refetch: refetchConfig, isLoading } = trpc.admin.getConfig.useQuery({ token });
+  const [editValues, setEditValues] = useState<Record<string, string>>({});
+  const [savingKey, setSavingKey] = useState<string | null>(null);
+  const [savedKeys, setSavedKeys] = useState<Set<string>>(new Set());
+  const [telegramBotToken, setTelegramBotToken] = useState("");
+  const [telegramChatId, setTelegramChatId] = useState("");
+  const [telegramStatus, setTelegramStatus] = useState<"idle" | "testing" | "success" | "error">("idle");
+  const [telegramError, setTelegramError] = useState("");
+
+  // ── Presale Active/Paused Toggle ──────────────────────────────────────────
+  const isPresaleLive = (configData?.find(c => c.key === "presaleStatus")?.value ?? "live") === "live";
+  const [togglingPresale, setTogglingPresale] = useState(false);
+
+  const setConfigMutation = trpc.admin.setConfig.useMutation({
+    onSuccess: (_, vars) => {
+      setSavedKeys(prev => { const s = new Set(Array.from(prev)); s.add(vars.key); return s; });
+      setSavingKey(null);
+      setTogglingPresale(false);
+      refetchConfig();
+      setTimeout(() => setSavedKeys(prev => { const n = new Set(Array.from(prev)); n.delete(vars.key); return n; }), 2000);
+    },
+    onError: (err) => {
+      setSavingKey(null);
+      setTogglingPresale(false);
+      alert(`Save failed: ${err.message}`);
+    },
+  });
+
+  const handleTogglePresale = () => {
+    const newStatus = isPresaleLive ? "paused" : "live";
+    setTogglingPresale(true);
+    setConfigMutation.mutate({ token, key: "presaleStatus", value: newStatus });
+  };
+
+  const testTelegramMutation = trpc.admin.testTelegram.useMutation({
+    onSuccess: () => {
+      setTelegramStatus("success");
+      refetchConfig();
+    },
+    onError: (err) => {
+      setTelegramStatus("error");
+      setTelegramError(err.message);
+    },
+  });
+
+  // Initialize edit values from config
+  useEffect(() => {
+    if (configData) {
+      const vals: Record<string, string> = {};
+      configData.forEach(c => { vals[c.key] = c.value; });
+      setEditValues(vals);
+      // Pre-fill Telegram fields
+      const botToken = configData.find(c => c.key === "telegramBotToken")?.value || "";
+      const chatId = configData.find(c => c.key === "telegramChatId")?.value || "";
+      if (botToken) setTelegramBotToken(botToken);
+      if (chatId) setTelegramChatId(chatId);
+    }
+  }, [configData]);
+
+  const handleSave = (key: string) => {
+    setSavingKey(key);
+    setConfigMutation.mutate({ token, key, value: editValues[key] || "" });
+  };
+
+  const handleTestTelegram = () => {
+    if (!telegramBotToken || !telegramChatId) {
+      setTelegramStatus("error");
+      setTelegramError("Please enter both Bot Token and Chat ID");
+      return;
+    }
+    setTelegramStatus("testing");
+    setTelegramError("");
+    testTelegramMutation.mutate({ token, botToken: telegramBotToken, chatId: telegramChatId });
+  };
+
+  // Group configs by category
+  const presaleKeys = ["presaleEndDate", "tokenPrice", "hardCap", "listingPrice", "totalSupply", "maxPurchaseUsdt", "presaleStatus"];
+  const contentKeys = ["heroTitle", "heroSubtitle", "tronReceivingAddress"];
+  const telegramKeys = ["telegramBotToken", "telegramChatId"];
+
+  const renderConfigRow = (cfg: { key: string; value: string; label: string; description: string; type: string; updatedAt: Date | null }) => (
+    <div key={cfg.key} className="rounded-xl p-4 mb-3" style={{ background: "rgba(255,255,255,0.02)", border: "1px solid rgba(255,255,255,0.06)" }}>
+      <div className="flex items-start justify-between gap-4">
+        <div className="flex-1 min-w-0">
+          <div className="flex items-center gap-2 mb-1">
+            <span className="text-sm font-semibold text-white/80">{cfg.label}</span>
+            <span className="text-xs px-1.5 py-0.5 rounded" style={{ background: "rgba(255,255,255,0.06)", color: "rgba(255,255,255,0.4)" }}>{cfg.type}</span>
+          </div>
+          <p className="text-xs text-white/40 mb-2">{cfg.description}</p>
+          {cfg.type === "text" && cfg.key !== "heroSubtitle" ? (
+            <input
+              type="text"
+              value={editValues[cfg.key] ?? cfg.value}
+              onChange={e => setEditValues(prev => ({ ...prev, [cfg.key]: e.target.value }))}
+              className="w-full px-3 py-2 rounded-lg text-sm"
+              style={{ background: "rgba(255,255,255,0.05)", border: "1px solid rgba(255,255,255,0.1)", color: "white", outline: "none" }}
+            />
+          ) : cfg.key === "heroSubtitle" ? (
+            <textarea
+              value={editValues[cfg.key] ?? cfg.value}
+              onChange={e => setEditValues(prev => ({ ...prev, [cfg.key]: e.target.value }))}
+              rows={3}
+              className="w-full px-3 py-2 rounded-lg text-sm resize-none"
+              style={{ background: "rgba(255,255,255,0.05)", border: "1px solid rgba(255,255,255,0.1)", color: "white", outline: "none" }}
+            />
+          ) : cfg.type === "number" ? (
+            <input
+              type="number"
+              value={editValues[cfg.key] ?? cfg.value}
+              onChange={e => setEditValues(prev => ({ ...prev, [cfg.key]: e.target.value }))}
+              className="w-full px-3 py-2 rounded-lg text-sm"
+              style={{ background: "rgba(255,255,255,0.05)", border: "1px solid rgba(255,255,255,0.1)", color: "white", outline: "none" }}
+            />
+          ) : cfg.type === "date" ? (
+            <input
+              type="datetime-local"
+              value={editValues[cfg.key] ? editValues[cfg.key].replace("Z", "").slice(0, 16) : ""}
+              onChange={e => setEditValues(prev => ({ ...prev, [cfg.key]: e.target.value + ":00Z" }))}
+              className="w-full px-3 py-2 rounded-lg text-sm"
+              style={{ background: "rgba(255,255,255,0.05)", border: "1px solid rgba(255,255,255,0.1)", color: "white", outline: "none" }}
+            />
+          ) : (
+            <input
+              type="text"
+              value={editValues[cfg.key] ?? cfg.value}
+              onChange={e => setEditValues(prev => ({ ...prev, [cfg.key]: e.target.value }))}
+              className="w-full px-3 py-2 rounded-lg text-sm"
+              style={{ background: "rgba(255,255,255,0.05)", border: "1px solid rgba(255,255,255,0.1)", color: "white", outline: "none" }}
+            />
+          )}
+        </div>
+        <div className="flex flex-col items-end gap-1 flex-shrink-0">
+          <button
+            onClick={() => handleSave(cfg.key)}
+            disabled={savingKey === cfg.key}
+            className="px-4 py-2 rounded-lg text-xs font-semibold transition-all whitespace-nowrap"
+            style={{
+              background: savedKeys.has(cfg.key) ? "rgba(0,230,118,0.2)" : "rgba(240,180,41,0.15)",
+              border: savedKeys.has(cfg.key) ? "1px solid rgba(0,230,118,0.4)" : "1px solid rgba(240,180,41,0.3)",
+              color: savedKeys.has(cfg.key) ? "#00e676" : "#f0b429",
+            }}
+          >
+            {savingKey === cfg.key ? "Saving..." : savedKeys.has(cfg.key) ? "✓ Saved" : "Save"}
+          </button>
+          {cfg.updatedAt && (
+            <span className="text-xs text-white/25">{new Date(cfg.updatedAt).toLocaleDateString()}</span>
+          )}
+        </div>
+      </div>
+    </div>
+  );
+
+  if (isLoading) {
+    return <div className="text-center py-12 text-white/40">Loading settings...</div>;
+  }
+
+  const getConfigItem = (key: string) => configData?.find(c => c.key === key);
+
+  return (
+    <div className="space-y-6">
+      {/* ── Presale Active Toggle ── */}
+      <div
+        className="rounded-2xl p-6"
+        style={{
+          background: isPresaleLive ? "rgba(0,230,118,0.06)" : "rgba(255,60,60,0.06)",
+          border: isPresaleLive ? "2px solid rgba(0,230,118,0.45)" : "2px solid rgba(255,60,60,0.45)",
+        }}
+      >
+        <div className="flex items-center justify-between gap-4 flex-wrap">
+          <div>
+            <div className="flex items-center gap-3 mb-1">
+              <div
+                className="w-3 h-3 rounded-full"
+                style={{
+                  background: isPresaleLive ? "#00e676" : "#ff4444",
+                  boxShadow: isPresaleLive ? "0 0 8px rgba(0,230,118,0.8)" : "0 0 8px rgba(255,68,68,0.8)",
+                  animation: isPresaleLive ? "pulse 2s infinite" : "none",
+                }}
+              />
+              <h3
+                className="text-lg font-bold"
+                style={{
+                  color: isPresaleLive ? "#00e676" : "#ff6060",
+                  fontFamily: "'Space Grotesk', sans-serif",
+                }}
+              >
+                {isPresaleLive ? "预售进行中  PRESALE LIVE" : "预售已暂停  PRESALE PAUSED"}
+              </h3>
+            </div>
+            <p className="text-xs ml-6" style={{ color: "rgba(255,255,255,0.45)" }}>
+              {isPresaleLive
+                ? "用户当前可正常购买 XIC 代币。点击《暂停预售》可立即封禁所有购买入口。"
+                : "预售已暂停，首页购买按钮已禁用。点击《开启预售》可重新开放购买。"}
+            </p>
+          </div>
+          <button
+            onClick={handleTogglePresale}
+            disabled={togglingPresale}
+            className="flex-shrink-0 px-8 py-3 rounded-xl font-bold text-base transition-all"
+            style={{
+              background: isPresaleLive
+                ? "linear-gradient(135deg, rgba(255,60,60,0.25) 0%, rgba(255,60,60,0.15) 100%)"
+                : "linear-gradient(135deg, rgba(0,230,118,0.25) 0%, rgba(0,230,118,0.15) 100%)",
+              border: isPresaleLive ? "1.5px solid rgba(255,60,60,0.6)" : "1.5px solid rgba(0,230,118,0.6)",
+              color: isPresaleLive ? "#ff6060" : "#00e676",
+              fontFamily: "'Space Grotesk', sans-serif",
+              opacity: togglingPresale ? 0.6 : 1,
+              cursor: togglingPresale ? "not-allowed" : "pointer",
+              letterSpacing: "0.03em",
+            }}
+          >
+            {togglingPresale
+              ? "处理中..."
+              : isPresaleLive
+              ? "⏸ 暂停预售"
+              : "▶ 开启预售"}
+          </button>
+        </div>
+      </div>
+
+      {/* Presale Parameters */}
+      <div className="rounded-2xl p-5" style={{ background: "rgba(255,255,255,0.02)", border: "1px solid rgba(240,180,41,0.15)" }}>
+        <h3 className="text-sm font-semibold mb-4" style={{ color: "#f0b429" }}>Presale Parameters 预售参数</h3>
+        {presaleKeys.map(key => {
+          const cfg = getConfigItem(key);
+          if (!cfg) return null;
+          return renderConfigRow(cfg);
+        })}
+      </div>
+
+      {/* Site Content */}
+      <div className="rounded-2xl p-5" style={{ background: "rgba(255,255,255,0.02)", border: "1px solid rgba(0,212,255,0.15)" }}>
+        <h3 className="text-sm font-semibold mb-4" style={{ color: "#00d4ff" }}>Site Content 首页内容</h3>
+        {contentKeys.map(key => {
+          const cfg = getConfigItem(key);
+          if (!cfg) return null;
+          return renderConfigRow(cfg);
+        })}
+      </div>
+
+      {/* Telegram Notifications */}
+      <div className="rounded-2xl p-5" style={{ background: "rgba(255,255,255,0.02)", border: "1px solid rgba(0,230,118,0.15)" }}>
+        <h3 className="text-sm font-semibold mb-1" style={{ color: "#00e676" }}>Telegram Notifications</h3>
+        <p className="text-xs text-white/40 mb-4">
+          Set up Telegram Bot to receive instant alerts when new TRC20 purchases are confirmed.
+          Get your Bot Token from <a href="https://t.me/BotFather" target="_blank" rel="noopener noreferrer" style={{ color: "#00d4ff" }}>@BotFather</a>.
+        </p>
+        <div className="space-y-3 mb-4">
+          <div>
+            <label className="text-xs text-white/60 block mb-1">Bot Token (from @BotFather)</label>
+            <input
+              type="text"
+              value={telegramBotToken}
+              onChange={e => setTelegramBotToken(e.target.value)}
+              placeholder="123456789:ABCdefGHIjklMNOpqrsTUVwxyz"
+              className="w-full px-3 py-2 rounded-lg text-sm font-mono"
+              style={{ background: "rgba(255,255,255,0.05)", border: "1px solid rgba(255,255,255,0.1)", color: "white", outline: "none" }}
+            />
+          </div>
+          <div>
+            <label className="text-xs text-white/60 block mb-1">Chat ID (personal or group)</label>
+            <input
+              type="text"
+              value={telegramChatId}
+              onChange={e => setTelegramChatId(e.target.value)}
+              placeholder="-1001234567890 or 123456789"
+              className="w-full px-3 py-2 rounded-lg text-sm font-mono"
+              style={{ background: "rgba(255,255,255,0.05)", border: "1px solid rgba(255,255,255,0.1)", color: "white", outline: "none" }}
+            />
+          </div>
+        </div>
+        <div className="flex items-center gap-3">
+          <button
+            onClick={handleTestTelegram}
+            disabled={telegramStatus === "testing"}
+            className="px-5 py-2 rounded-xl text-sm font-semibold transition-all"
+            style={{
+              background: telegramStatus === "success" ? "rgba(0,230,118,0.2)" : "rgba(0,230,118,0.1)",
+              border: telegramStatus === "success" ? "1px solid rgba(0,230,118,0.5)" : "1px solid rgba(0,230,118,0.3)",
+              color: "#00e676",
+            }}
+          >
+            {telegramStatus === "testing" ? "Sending test..." : telegramStatus === "success" ? "✓ Connected & Saved!" : "Test & Save Connection"}
+          </button>
+          {telegramStatus === "error" && (
+            <span className="text-xs text-red-400">{telegramError}</span>
+          )}
+          {telegramStatus === "success" && (
+            <span className="text-xs text-green-400">Test message sent! Check your Telegram.</span>
+          )}
+        </div>
+        <div className="mt-4 rounded-lg p-3 text-xs text-white/50" style={{ background: "rgba(255,255,255,0.03)", border: "1px solid rgba(255,255,255,0.06)" }}>
+          <p className="font-semibold text-white/70 mb-1">How to get Chat ID:</p>
+          <p>1. Start a chat with your bot (send any message)</p>
+          <p>2. Visit: <code className="text-cyan-400">https://api.telegram.org/bot&lt;TOKEN&gt;/getUpdates</code></p>
+          <p>3. Find <code className="text-cyan-400">{'{"chat":{"id": YOUR_CHAT_ID}}'}</code> in the response</p>     </div>
+      </div>
+    </div>
+  );
+}
+
+// ─── Main Dashboard ─────────────────────────────────────────────
 function Dashboard({ token, onLogout }: { token: string; onLogout: () => void }) {
   const [page, setPage] = useState(1);
   const [statusFilter, setStatusFilter] = useState<"all" | "pending" | "confirmed" | "distributed" | "failed">("all");
   const [markingId, setMarkingId] = useState<number | null>(null);
   const [distributeTxInput, setDistributeTxInput] = useState<Record<number, string>>({});
-  const [activeTab, setActiveTab] = useState<"purchases" | "intents">("purchases");
+  const [activeTab, setActiveTab] = useState<"purchases" | "intents" | "settings">("purchases");
 
   const { data: statsData, refetch: refetchStats } = trpc.admin.stats.useQuery({ token });
   const { data: intentsData, isLoading: intentsLoading } = trpc.admin.listIntents.useQuery({ token, showAll: false });
@@ -294,6 +597,17 @@ function Dashboard({ token, onLogout }: { token: string; onLogout: () => void })
               </span>
             )}
           </button>
+          <button
+            onClick={() => setActiveTab("settings")}
+            className="px-4 py-2 rounded-xl text-sm font-semibold transition-all"
+            style={{
+              background: activeTab === "settings" ? "rgba(0,230,118,0.15)" : "rgba(255,255,255,0.04)",
+              border: activeTab === "settings" ? "1px solid rgba(0,230,118,0.4)" : "1px solid rgba(255,255,255,0.08)",
+              color: activeTab === "settings" ? "#00e676" : "rgba(255,255,255,0.5)",
+            }}
+          >
+            ⚙️ Site Settings
+          </button>
         </div>
 
         {/* ── EVM Intents Table ── */}
@@ -519,7 +833,13 @@ function Dashboard({ token, onLogout }: { token: string; onLogout: () => void })
         </div>
         )}
 
+        {/* ── Site Settings Panel ── */}
+        {activeTab === "settings" && (
+          <SettingsPanel token={token} />
+        )}
+
         {/* ── Instructions ── */}
+        {activeTab !== "settings" && (
         <div className="mt-6 rounded-2xl p-5" style={{ background: "rgba(0,212,255,0.04)", border: "1px solid rgba(0,212,255,0.15)" }}>
           <h3 className="text-sm font-semibold text-cyan-400 mb-3">Distribution Workflow</h3>
           <div className="space-y-2 text-sm text-white/60">
@@ -530,6 +850,7 @@ function Dashboard({ token, onLogout }: { token: string; onLogout: () => void })
             <p>5. <strong className="text-white/80">No EVM address?</strong> Contact buyer via Telegram/email to get their BSC address</p>
           </div>
         </div>
+        )}
       </div>
     </div>
   );

client/src/pages/Home.tsx

@@ -11,6 +11,7 @@ import { usePresale } from "@/hooks/usePresale";
 import { CONTRACTS, PRESALE_CONFIG, formatNumber, shortenAddress } from "@/lib/contracts";
 import { trpc } from "@/lib/trpc";
 import { type Lang, useTranslation } from "@/lib/i18n";
+import { WalletSelector } from "@/components/WalletSelector";
 
 // ─── Network Tab Types ────────────────────────────────────────────────────────
 type NetworkTab = "BSC" | "ETH" | "TRON";
@@ -104,18 +105,67 @@ function StepBadge({ num, text }: { num: number; text: string }) {
 }
 
 // ─── TRC20 Purchase Panel ─────────────────────────────────────────────────────
-function TRC20Panel({ usdtAmount, lang }: { usdtAmount: number; lang: Lang }) {
+function TRC20Panel({ usdtAmount, lang, connectedAddress, onConnectWallet }: { usdtAmount: number; lang: Lang; connectedAddress?: string; onConnectWallet?: () => void }) {
   const { t } = useTranslation(lang);
   const tokenAmount = usdtAmount / PRESALE_CONFIG.tokenPrice;
   const [copied, setCopied] = useState(false);
-  const [evmAddress, setEvmAddress] = useState("");
+  const [evmAddress, setEvmAddress] = useState(connectedAddress || "");
   const [evmAddrError, setEvmAddrError] = useState("");
   const [submitted, setSubmitted] = useState(false);
+  // TronLink detection state
+  const [tronAddress, setTronAddress] = useState<string | null>(null);
+  const [isTronConnecting, setIsTronConnecting] = useState(false);
+  const hasTronLink = typeof window !== "undefined" && (!!(window as unknown as Record<string, unknown>).tronWeb || !!(window as unknown as Record<string, unknown>).tronLink);
+
+  // Auto-detect TronLink on mount
+  useEffect(() => {
+    const detectTron = async () => {
+      // Wait briefly for TronLink to inject
+      await new Promise(resolve => setTimeout(resolve, 500));
+      const tronWeb = (window as unknown as Record<string, unknown>).tronWeb as { defaultAddress?: { base58?: string }; ready?: boolean } | undefined;
+      if (tronWeb && tronWeb.ready && tronWeb.defaultAddress?.base58) {
+        setTronAddress(tronWeb.defaultAddress.base58);
+      }
+    };
+    detectTron();
+  }, []);
+
+  // Connect TronLink wallet
+  const handleConnectTronLink = async () => {
+    setIsTronConnecting(true);
+    try {
+      const tronLink = (window as unknown as Record<string, unknown>).tronLink as { request?: (args: { method: string }) => Promise<{ code: number }> } | undefined;
+      const tronWeb = (window as unknown as Record<string, unknown>).tronWeb as { defaultAddress?: { base58?: string }; ready?: boolean } | undefined;
+      if (tronLink?.request) {
+        const result = await tronLink.request({ method: 'tron_requestAccounts' });
+        if (result?.code === 200 && tronWeb?.defaultAddress?.base58) {
+          setTronAddress(tronWeb.defaultAddress.base58);
+          toast.success(lang === "zh" ? "TronLink已连接！" : "TronLink connected!");
+        }
+      } else if (tronWeb?.ready && tronWeb.defaultAddress?.base58) {
+        setTronAddress(tronWeb.defaultAddress.base58);
+        toast.success(lang === "zh" ? "TronLink已检测到！" : "TronLink detected!");
+      } else {
+        toast.error(lang === "zh" ? "请安装TronLink钱包扩展" : "Please install TronLink wallet extension");
+      }
+    } catch {
+      toast.error(lang === "zh" ? "连接TronLink失败" : "Failed to connect TronLink");
+    } finally {
+      setIsTronConnecting(false);
+    }
+  };
+
+  // Auto-fill EVM address whenever wallet connects or address changes (unless user already submitted)
+  useEffect(() => {
+    if (connectedAddress && !submitted) {
+      setEvmAddress(connectedAddress);
+    }
+  }, [connectedAddress, submitted]);
 
   const submitTrc20Mutation = trpc.presale.registerTrc20Intent.useMutation({
     onSuccess: () => {
       setSubmitted(true);
-      toast.success(lang === "zh" ? "EVM地址已保存！" : "EVM address saved!");
+      toast.success(lang === "zh" ? "XIC接收地址已保存！" : "XIC receiving address saved!");
     },
     onError: (err: { message: string }) => {
       toast.error(err.message);
@@ -130,8 +180,8 @@ function TRC20Panel({ usdtAmount, lang }: { usdtAmount: number; lang: Lang }) {
   };
 
   const validateEvmAddress = (addr: string) => {
-    if (!addr) return lang === "zh" ? "请输入您的EVM地址" : "Please enter your EVM address";
-    if (!/^0x[0-9a-fA-F]{40}$/.test(addr)) return lang === "zh" ? "无效的EVM地址格式（应以0x开头，共42位）" : "Invalid EVM address format (must start with 0x, 42 chars)";
+    if (!addr) return lang === "zh" ? "请输入您的XIC接收地址" : "Please enter your XIC receiving address";
+    if (!/^0x[0-9a-fA-F]{40}$/.test(addr)) return lang === "zh" ? "无效的XIC接收地址格式（应以0x开头，入42位）" : "Invalid XIC receiving address format (must start with 0x, 42 chars)";
     return "";
   };
 
@@ -149,20 +199,33 @@ function TRC20Panel({ usdtAmount, lang }: { usdtAmount: number; lang: Lang }) {
         <div className="flex items-center gap-2">
           <span className="text-amber-400 text-sm">⚠️</span>
           <p className="text-sm font-semibold text-amber-300">
-            {lang === "zh" ? "必填：您的EVM钱包地址（用于接收XIC代币）" : "Required: Your EVM Wallet Address (to receive XIC tokens)"}
+            {lang === "zh" ? "必填：您的XIC接收地址（BSC/ETH钉包地址）" : "Required: Your XIC Receiving Address (BSC/ETH wallet address)"}
           </p>
         </div>
         <p className="text-xs text-white/50">
           {lang === "zh"
-            ? "XIC代币在BSC网络上发放。请提供您的BSC/ETH地址（0x开头），以便我们将代币发送给您。"
-            : "XIC tokens are distributed on BSC. Please provide your BSC/ETH address (starts with 0x) so we can send your tokens."}
+            ? "XIC代币将发放到您的BSC/ETH钉包地址（0x开头）。请确保填写正确的地址，否则无法收到代币。"
+            : "XIC tokens will be sent to your BSC/ETH wallet address (starts with 0x). Please make sure to enter the correct address."}
         </p>
         <div className="space-y-2">
+          {/* WalletSelector — shown when address not yet filled */}
+          {!evmAddress && !submitted && (
+            <WalletSelector
+              lang={lang}
+              connectedAddress={connectedAddress}
+              onAddressDetected={(addr) => {
+                setEvmAddress(addr);
+                setEvmAddrError("");
+                toast.success(lang === "zh" ? "XIC接收地址已自动填充！" : "XIC receiving address auto-filled!");
+                if (onConnectWallet) onConnectWallet();
+              }}
+            />
+          )}
           <input
             type="text"
             value={evmAddress}
             onChange={e => { setEvmAddress(e.target.value); setEvmAddrError(""); setSubmitted(false); }}
-            placeholder={lang === "zh" ? "0x... (您的BSC/ETH地址)" : "0x... (your BSC/ETH address)"}
+            placeholder={lang === "zh" ? "0x... (您的XIC接收地址)" : "0x... (your XIC receiving address)"}
             className="w-full px-4 py-3 rounded-xl text-sm font-mono"
             style={{
               background: "rgba(255,255,255,0.05)",
@@ -172,7 +235,7 @@ function TRC20Panel({ usdtAmount, lang }: { usdtAmount: number; lang: Lang }) {
             }}
           />
           {evmAddrError && <p className="text-xs text-red-400">{evmAddrError}</p>}
-          {submitted && <p className="text-xs text-green-400">✓ {lang === "zh" ? "EVM地址已保存" : "EVM address saved"}</p>}
+          {submitted && <p className="text-xs text-green-400">✓ {lang === "zh" ? "XIC接收地址已保存" : "XIC receiving address saved"}</p>}
           <button
             onClick={handleEvmSubmit}
             disabled={submitTrc20Mutation.isPending || submitted || !evmAddress}
@@ -184,11 +247,85 @@ function TRC20Panel({ usdtAmount, lang }: { usdtAmount: number; lang: Lang }) {
               opacity: !evmAddress ? 0.5 : 1,
             }}
           >
-            {submitTrc20Mutation.isPending ? (lang === "zh" ? "保存中..." : "Saving...") : submitted ? (lang === "zh" ? "✓ 已保存" : "✓ Saved") : (lang === "zh" ? "保存EVM地址" : "Save EVM Address")}
+            {submitTrc20Mutation.isPending ? (lang === "zh" ? "保存中..." : "Saving...") : submitted ? (lang === "zh" ? "✓ 已保存" : "✓ Saved") : (lang === "zh" ? "保存XIC接收地址" : "Save XIC Receiving Address")}
           </button>
         </div>
       </div>
 
+      {/* TronLink Wallet Detection */}
+      <div className="rounded-xl p-4 space-y-3" style={{ background: "rgba(255,0,19,0.06)", border: "1px solid rgba(255,0,19,0.25)" }}>
+        <div className="flex items-center gap-2">
+          <svg width="18" height="18" viewBox="0 0 24 24" fill="none">
+            <circle cx="12" cy="12" r="12" fill="#FF0013"/>
+            <path d="M12 5L19 9.5V14.5L12 19L5 14.5V9.5L12 5Z" fill="white" opacity="0.9"/>
+            <path d="M12 8L16 10.5V13.5L12 16L8 13.5V10.5L12 8Z" fill="#FF0013"/>
+          </svg>
+          <p className="text-sm font-semibold" style={{ color: "#ff6b6b" }}>
+            {lang === "zh" ? "TronLink 钱包（可选）" : "TronLink Wallet (Optional)"}
+          </p>
+        </div>
+        {tronAddress ? (
+          <div className="space-y-2">
+            <p className="text-xs text-white/50">
+              {lang === "zh" ? "已连接 TronLink 地址：" : "Connected TronLink address:"}
+            </p>
+            <div
+              className="p-3 rounded-lg text-xs font-mono break-all"
+              style={{ background: "rgba(0,230,118,0.08)", border: "1px solid rgba(0,230,118,0.3)", color: "#00e676" }}
+            >
+              ✓ {tronAddress}
+            </div>
+            <p className="text-xs text-white/40">
+              {lang === "zh"
+                ? "您的 TronLink 已连接。请在上方填写 XIC 接收地址，然后向下方地址发送 USDT。"
+                : "TronLink connected. Please fill your XIC receiving address above, then send USDT to the address below."}
+            </p>
+          </div>
+        ) : (
+          <div className="space-y-2">
+            <p className="text-xs text-white/50">
+              {lang === "zh"
+                ? "如果您使用 TronLink 钱包，可以连接后自动验证您的 TRON 地址。"
+                : "If you use TronLink wallet, connect to auto-verify your TRON address."}
+            </p>
+            {hasTronLink ? (
+              <button
+                onClick={handleConnectTronLink}
+                disabled={isTronConnecting}
+                className="w-full py-2.5 rounded-xl text-sm font-semibold flex items-center justify-center gap-2 transition-all hover:opacity-90"
+                style={{
+                  background: "rgba(255,0,19,0.15)",
+                  border: "1px solid rgba(255,0,19,0.4)",
+                  color: "#ff6b6b",
+                }}
+              >
+                <svg width="16" height="16" viewBox="0 0 24 24" fill="none">
+                  <circle cx="12" cy="12" r="10" stroke="currentColor" strokeWidth="2"/>
+                  <path d="M12 6v6l4 2" stroke="currentColor" strokeWidth="2" strokeLinecap="round"/>
+                </svg>
+                {isTronConnecting
+                  ? (lang === "zh" ? "连接中..." : "Connecting...")
+                  : (lang === "zh" ? "连接 TronLink 自动验证" : "Connect TronLink to verify")}
+              </button>
+            ) : (
+              <a
+                href="https://www.tronlink.org/"
+                target="_blank"
+                rel="noopener noreferrer"
+                className="w-full py-2.5 rounded-xl text-sm font-semibold flex items-center justify-center gap-2 transition-all hover:opacity-90 block text-center"
+                style={{
+                  background: "rgba(255,0,19,0.08)",
+                  border: "1px solid rgba(255,0,19,0.25)",
+                  color: "rgba(255,107,107,0.7)",
+                }}
+              >
+                {lang === "zh" ? "安装 TronLink 钱包 →" : "Install TronLink Wallet →"}
+              </a>
+            )}
+          </div>
+        )}
+      </div>
+
       <div className="nac-card-blue rounded-xl p-4 space-y-3">
         <p className="text-sm font-medium text-white/80">{t("trc20_send_to")}</p>
         <div
@@ -210,8 +347,8 @@ function TRC20Panel({ usdtAmount, lang }: { usdtAmount: number; lang: Lang }) {
       <div className="space-y-2">
         <StepBadge num={1} text={
           lang === "zh"
-            ? `在上方填写您的EVM地址并保存`
-            : `Enter and save your EVM address above`
+            ? `在上方填写您的XIC接收地址并保存`
+            : `Enter and save your XIC receiving address above`
         } />
         <StepBadge num={2} text={
           lang === "zh"
@@ -234,10 +371,9 @@ function TRC20Panel({ usdtAmount, lang }: { usdtAmount: number; lang: Lang }) {
   );
 }
 
-// ─── EVM Purchase Panel ───────────────────────────────────────────────────────
-function EVMPurchasePanel({ network, lang }: { network: "BSC" | "ETH"; lang: Lang }) {
+// ─── EVM Purchase Panel ─────────────────────────────────────────────────────
+function EVMPurchasePanel({ network, lang, wallet }: { network: "BSC" | "ETH"; lang: Lang; wallet: WalletHookReturn }) {
   const { t } = useTranslation(lang);
-  const wallet = useWallet();
   const { purchaseState, buyWithUSDT, reset, calcTokens, getUsdtBalance } = usePresale(wallet, network);
   const [usdtInput, setUsdtInput] = useState("100");
   const [usdtBalance, setUsdtBalance] = useState<number | null>(null);
@@ -280,18 +416,17 @@ function EVMPurchasePanel({ network, lang }: { network: "BSC" | "ETH"; lang: Lan
   if (!wallet.isConnected) {
     return (
       <div className="space-y-4">
-        <div className="text-center py-6">
-          <div className="text-4xl mb-3">🔗</div>
-          <p className="text-white/60 text-sm mb-4">{t("buy_connect_msg")}</p>
-          <button
-            onClick={wallet.connect}
-            disabled={wallet.isConnecting}
-            className="btn-primary-nac w-full py-3 rounded-xl text-base font-bold pulse-amber"
-            style={{ fontFamily: "'Space Grotesk', sans-serif" }}
-          >
-            {wallet.isConnecting ? t("nav_connecting") : t("buy_connect_btn")}
-          </button>
-        </div>
+        <p className="text-sm text-white/60 text-center">{t("buy_connect_msg")}</p>
+        <WalletSelector
+          lang={lang}
+          connectedAddress={wallet.address ?? undefined}
+          onAddressDetected={(addr) => {
+            // Address detected — wallet is now connected, trigger wallet.connect to sync state
+            wallet.connect();
+            toast.success(lang === "zh" ? `已连接: ${addr.slice(0, 6)}...${addr.slice(-4)}` : `Connected: ${addr.slice(0, 6)}...${addr.slice(-4)}`);
+          }}
+          compact
+        />
         <div className="text-xs text-white/40 text-center">{t("buy_connect_hint")}</div>
       </div>
     );
@@ -675,9 +810,9 @@ function ChatSupport({ lang }: { lang: Lang }) {
 }
 
 // ─── Navbar Wallet Button ─────────────────────────────────────────────────────
-function NavWalletButton({ lang }: { lang: Lang }) {
+type WalletHookReturn = ReturnType<typeof useWallet>;
+function NavWalletButton({ lang, wallet }: { lang: Lang; wallet: WalletHookReturn }) {
   const { t } = useTranslation(lang);
-  const wallet = useWallet();
   const [showMenu, setShowMenu] = useState(false);
   const menuRef = useRef<HTMLDivElement>(null);
 
@@ -796,11 +931,31 @@ export default function Home() {
 
   const stats = onChainStats || FALLBACK_STATS;
   const progressPct = stats.progressPct || 0;
+  // Presale active/paused status from backend config
+  const isPresalePaused = (onChainStats as any)?.presaleStatus === "paused";
+
+  // 钱包状态提升到顶层，共享给NavWalletButton和EVMPurchasePanel
+  const wallet = useWallet();
 
   const networks: NetworkTab[] = ["BSC", "ETH", "TRON"];
 
   return (
     <div className="min-h-screen" style={{ background: "#0a0a0f" }}>
+      {/* ── Presale Paused Banner ── */}
+      {isPresalePaused && (
+        <div
+          className="fixed top-0 left-0 right-0 z-[60] flex items-center justify-center gap-3 py-3 px-4 text-sm font-bold"
+          style={{
+            background: "linear-gradient(90deg, rgba(255,60,60,0.95) 0%, rgba(200,0,0,0.95) 100%)",
+            color: "white",
+            letterSpacing: "0.05em",
+          }}
+        >
+          <span className="text-lg">⏸</span>
+          <span>{lang === "zh" ? "预售活动已暂停，暂时无法购买。请关注官方渠道获取最新公告。" : "Presale is currently paused. Please follow our official channels for updates."}</span>
+          <span className="text-lg">⏸</span>
+        </div>
+      )}
       {/* ── Navigation ── */}
       <nav className="fixed top-0 left-0 right-0 z-50 flex items-center justify-between px-6 py-4" style={{ background: "rgba(10,10,15,0.9)", borderBottom: "1px solid rgba(240,180,41,0.1)", backdropFilter: "blur(12px)" }}>
         <div className="flex items-center gap-3">
@@ -820,7 +975,7 @@ export default function Home() {
             </span>
           </Link>
           <LangToggle lang={lang} setLang={setLang} />
-          <NavWalletButton lang={lang} />
+          <NavWalletButton lang={lang} wallet={wallet} />
         </div>
       </nav>
 
@@ -985,9 +1140,28 @@ export default function Home() {
               </div>
 
               {/* Purchase Area */}
-              <div>
-                {activeNetwork === "BSC" && <EVMPurchasePanel network="BSC" lang={lang} />}
-                {activeNetwork === "ETH" && <EVMPurchasePanel network="ETH" lang={lang} />}
+              <div className="relative">
+                {/* Presale Paused Overlay */}
+                {isPresalePaused && (
+                  <div
+                    className="absolute inset-0 z-10 flex flex-col items-center justify-center rounded-2xl gap-3"
+                    style={{
+                      background: "rgba(10,10,15,0.88)",
+                      border: "1.5px solid rgba(255,60,60,0.4)",
+                      backdropFilter: "blur(4px)",
+                    }}
+                  >
+                    <div className="text-4xl">⏸</div>
+                    <p className="text-base font-bold" style={{ color: "#ff6060", fontFamily: "'Space Grotesk', sans-serif" }}>
+                      {lang === "zh" ? "预售已暂停" : "Presale Paused"}
+                    </p>
+                    <p className="text-xs text-white/50 text-center px-4">
+                      {lang === "zh" ? "请关注官方 Telegram / Twitter 获取最新公告" : "Follow our official Telegram / Twitter for updates"}
+                    </p>
+                  </div>
+                )}
+                {activeNetwork === "BSC" && <EVMPurchasePanel network="BSC" lang={lang} wallet={wallet} />}
+                {activeNetwork === "ETH" && <EVMPurchasePanel network="ETH" lang={lang} wallet={wallet} />}
                 {activeNetwork === "TRON" && (
                   <div className="space-y-4">
                     <div className="space-y-2">
@@ -1015,7 +1189,7 @@ export default function Home() {
                         ))}
                       </div>
                     </div>
-                    <TRC20Panel usdtAmount={parseFloat(trcUsdtAmount) || 0} lang={lang} />
+                    <TRC20Panel usdtAmount={parseFloat(trcUsdtAmount) || 0} lang={lang} connectedAddress={wallet.address || undefined} onConnectWallet={wallet.connect} />
                   </div>
                 )}
               </div>

drizzle/0004_parallel_unus.sql

@@ -0,0 +1,11 @@
+CREATE TABLE `presale_config` (
+	`id` int AUTO_INCREMENT NOT NULL,
+	`key` varchar(64) NOT NULL,
+	`value` text NOT NULL,
+	`label` varchar(128),
+	`description` varchar(256),
+	`type` varchar(32) DEFAULT 'text',
+	`updatedAt` timestamp NOT NULL DEFAULT (now()) ON UPDATE CURRENT_TIMESTAMP,
+	CONSTRAINT `presale_config_id` PRIMARY KEY(`id`),
+	CONSTRAINT `presale_config_key_unique` UNIQUE(`key`)
+);

drizzle/meta/0004_snapshot.json

@@ -0,0 +1,429 @@
+{
+  "version": "5",
+  "dialect": "mysql",
+  "id": "6b25cb51-fd4a-43ff-9411-e1efd553f304",
+  "prevId": "58f17be6-1ea0-44cb-9d74-094dbec51be3",
+  "tables": {
+    "presale_config": {
+      "name": "presale_config",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "int",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": true
+        },
+        "key": {
+          "name": "key",
+          "type": "varchar(64)",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "value": {
+          "name": "value",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "label": {
+          "name": "label",
+          "type": "varchar(128)",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "description": {
+          "name": "description",
+          "type": "varchar(256)",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "type": {
+          "name": "type",
+          "type": "varchar(32)",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false,
+          "default": "'text'"
+        },
+        "updatedAt": {
+          "name": "updatedAt",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "onUpdate": true,
+          "default": "(now())"
+        }
+      },
+      "indexes": {},
+      "foreignKeys": {},
+      "compositePrimaryKeys": {
+        "presale_config_id": {
+          "name": "presale_config_id",
+          "columns": [
+            "id"
+          ]
+        }
+      },
+      "uniqueConstraints": {
+        "presale_config_key_unique": {
+          "name": "presale_config_key_unique",
+          "columns": [
+            "key"
+          ]
+        }
+      },
+      "checkConstraint": {}
+    },
+    "presale_stats_cache": {
+      "name": "presale_stats_cache",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "int",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": true
+        },
+        "chain": {
+          "name": "chain",
+          "type": "varchar(16)",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "usdtRaised": {
+          "name": "usdtRaised",
+          "type": "decimal(30,6)",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false,
+          "default": "'0'"
+        },
+        "tokensSold": {
+          "name": "tokensSold",
+          "type": "decimal(30,6)",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false,
+          "default": "'0'"
+        },
+        "weiRaised": {
+          "name": "weiRaised",
+          "type": "decimal(30,6)",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false,
+          "default": "'0'"
+        },
+        "lastUpdated": {
+          "name": "lastUpdated",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "default": "(now())"
+        }
+      },
+      "indexes": {},
+      "foreignKeys": {},
+      "compositePrimaryKeys": {
+        "presale_stats_cache_id": {
+          "name": "presale_stats_cache_id",
+          "columns": [
+            "id"
+          ]
+        }
+      },
+      "uniqueConstraints": {},
+      "checkConstraint": {}
+    },
+    "trc20_intents": {
+      "name": "trc20_intents",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "int",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": true
+        },
+        "tronAddress": {
+          "name": "tronAddress",
+          "type": "varchar(64)",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "evmAddress": {
+          "name": "evmAddress",
+          "type": "varchar(64)",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "expectedUsdt": {
+          "name": "expectedUsdt",
+          "type": "decimal(20,6)",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "matched": {
+          "name": "matched",
+          "type": "boolean",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "default": false
+        },
+        "matchedPurchaseId": {
+          "name": "matchedPurchaseId",
+          "type": "int",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "createdAt": {
+          "name": "createdAt",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "default": "(now())"
+        }
+      },
+      "indexes": {},
+      "foreignKeys": {},
+      "compositePrimaryKeys": {
+        "trc20_intents_id": {
+          "name": "trc20_intents_id",
+          "columns": [
+            "id"
+          ]
+        }
+      },
+      "uniqueConstraints": {},
+      "checkConstraint": {}
+    },
+    "trc20_purchases": {
+      "name": "trc20_purchases",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "int",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": true
+        },
+        "txHash": {
+          "name": "txHash",
+          "type": "varchar(128)",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "fromAddress": {
+          "name": "fromAddress",
+          "type": "varchar(64)",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "usdtAmount": {
+          "name": "usdtAmount",
+          "type": "decimal(20,6)",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "xicAmount": {
+          "name": "xicAmount",
+          "type": "decimal(30,6)",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "blockNumber": {
+          "name": "blockNumber",
+          "type": "bigint",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "status": {
+          "name": "status",
+          "type": "enum('pending','confirmed','distributed','failed')",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "default": "'pending'"
+        },
+        "distributedAt": {
+          "name": "distributedAt",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "distributeTxHash": {
+          "name": "distributeTxHash",
+          "type": "varchar(128)",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "evmAddress": {
+          "name": "evmAddress",
+          "type": "varchar(64)",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "createdAt": {
+          "name": "createdAt",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "default": "(now())"
+        },
+        "updatedAt": {
+          "name": "updatedAt",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "onUpdate": true,
+          "default": "(now())"
+        }
+      },
+      "indexes": {},
+      "foreignKeys": {},
+      "compositePrimaryKeys": {
+        "trc20_purchases_id": {
+          "name": "trc20_purchases_id",
+          "columns": [
+            "id"
+          ]
+        }
+      },
+      "uniqueConstraints": {
+        "trc20_purchases_txHash_unique": {
+          "name": "trc20_purchases_txHash_unique",
+          "columns": [
+            "txHash"
+          ]
+        }
+      },
+      "checkConstraint": {}
+    },
+    "users": {
+      "name": "users",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "int",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": true
+        },
+        "openId": {
+          "name": "openId",
+          "type": "varchar(64)",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "name": {
+          "name": "name",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "email": {
+          "name": "email",
+          "type": "varchar(320)",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "loginMethod": {
+          "name": "loginMethod",
+          "type": "varchar(64)",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "role": {
+          "name": "role",
+          "type": "enum('user','admin')",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "default": "'user'"
+        },
+        "createdAt": {
+          "name": "createdAt",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "default": "(now())"
+        },
+        "updatedAt": {
+          "name": "updatedAt",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "onUpdate": true,
+          "default": "(now())"
+        },
+        "lastSignedIn": {
+          "name": "lastSignedIn",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "default": "(now())"
+        }
+      },
+      "indexes": {},
+      "foreignKeys": {},
+      "compositePrimaryKeys": {
+        "users_id": {
+          "name": "users_id",
+          "columns": [
+            "id"
+          ]
+        }
+      },
+      "uniqueConstraints": {
+        "users_openId_unique": {
+          "name": "users_openId_unique",
+          "columns": [
+            "openId"
+          ]
+        }
+      },
+      "checkConstraint": {}
+    }
+  },
+  "views": {},
+  "_meta": {
+    "schemas": {},
+    "tables": {},
+    "columns": {}
+  },
+  "internal": {
+    "tables": {},
+    "indexes": {}
+  }
+}

drizzle/meta/_journal.json

@@ -29,6 +29,13 @@
       "when": 1772950356383,
       "tag": "0003_volatile_firestar",
       "breakpoints": true
+    },
+    {
+      "idx": 4,
+      "version": "5",
+      "when": 1772955197567,
+      "tag": "0004_parallel_unus",
+      "breakpoints": true
     }
   ]
 }

drizzle/schema.ts

@@ -82,3 +82,18 @@ export const trc20Intents = mysqlTable("trc20_intents", {
 
 export type Trc20Intent = typeof trc20Intents.$inferSelect;
 export type InsertTrc20Intent = typeof trc20Intents.$inferInsert;
+
+// Presale configuration — editable by admin from the admin panel
+// Each row is a key-value pair (e.g. presaleEndDate, tokenPrice, hardCap, etc.)
+export const presaleConfig = mysqlTable("presale_config", {
+  id: int("id").autoincrement().primaryKey(),
+  key: varchar("key", { length: 64 }).notNull().unique(),
+  value: text("value").notNull(),
+  label: varchar("label", { length: 128 }),       // Human-readable label for admin UI
+  description: varchar("description", { length: 256 }), // Help text
+  type: varchar("type", { length: 32 }).default("text"), // text | number | date | boolean | url
+  updatedAt: timestamp("updatedAt").defaultNow().onUpdateNow().notNull(),
+});
+
+export type PresaleConfig = typeof presaleConfig.$inferSelect;
+export type InsertPresaleConfig = typeof presaleConfig.$inferInsert;

server/configDb.ts

@@ -0,0 +1,225 @@
+/**
+ * Presale Configuration Database Helpers
+ *
+ * Manages the presale_config table — a key-value store for
+ * admin-editable presale parameters.
+ *
+ * Default values are seeded on first access if not present.
+ */
+
+import { eq } from "drizzle-orm";
+import { getDb } from "./db";
+import { presaleConfig } from "../drizzle/schema";
+
+// ─── Default configuration values ─────────────────────────────────────────────
+export const DEFAULT_CONFIG: Array<{
+  key: string;
+  value: string;
+  label: string;
+  description: string;
+  type: string;
+}> = [
+  {
+    key: "presaleEndDate",
+    value: "2026-06-30T23:59:59Z",
+    label: "预售结束时间 (Presale End Date)",
+    description: "ISO 8601 格式，例如：2026-06-30T23:59:59Z",
+    type: "date",
+  },
+  {
+    key: "tokenPrice",
+    value: "0.02",
+    label: "代币价格 (Token Price, USDT)",
+    description: "每枚 XIC 的 USDT 价格",
+    type: "number",
+  },
+  {
+    key: "hardCap",
+    value: "5000000",
+    label: "硬顶 (Hard Cap, USDT)",
+    description: "预售最大募资额（USDT）",
+    type: "number",
+  },
+  {
+    key: "listingPrice",
+    value: "0.10",
+    label: "上市目标价格 (Target Listing Price, USDT)",
+    description: "预计上市价格（仅展示用）",
+    type: "number",
+  },
+  {
+    key: "totalSupply",
+    value: "100000000000",
+    label: "总供应量 (Total Supply)",
+    description: "XIC 代币总供应量",
+    type: "number",
+  },
+  {
+    key: "maxPurchaseUsdt",
+    value: "50000",
+    label: "单笔最大购买额 (Max Purchase, USDT)",
+    description: "单笔购买最大 USDT 金额",
+    type: "number",
+  },
+  {
+    key: "presaleStatus",
+    value: "live",
+    label: "预售状态 (Presale Status)",
+    description: "live = 进行中，paused = 暂停，ended = 已结束",
+    type: "text",
+  },
+  {
+    key: "heroTitle",
+    value: "XIC Token Presale",
+    label: "首页标题 (Hero Title)",
+    description: "首页大标题文字",
+    type: "text",
+  },
+  {
+    key: "heroSubtitle",
+    value: "New AssetChain — The next-generation RWA native blockchain with AI-native compliance, CBPP consensus, and Charter smart contracts.",
+    label: "首页副标题 (Hero Subtitle)",
+    description: "首页副标题文字",
+    type: "text",
+  },
+  {
+    key: "tronReceivingAddress",
+    value: "TWc2ugYBFN5aSoimAh4qGt9oMyket6NYZp",
+    label: "TRC20 收款地址 (TRON Receiving Address)",
+    description: "接收 TRC20 USDT 的 TRON 地址",
+    type: "text",
+  },
+  {
+    key: "telegramBotToken",
+    value: "",
+    label: "Telegram Bot Token",
+    description: "从 @BotFather 获取的 Bot Token，用于发送购买通知",
+    type: "text",
+  },
+  {
+    key: "telegramChatId",
+    value: "",
+    label: "Telegram Chat ID",
+    description: "接收通知的 Chat ID（个人账号或群组）",
+    type: "text",
+  },
+];
+
+export interface ConfigMap {
+  [key: string]: string;
+}
+
+/**
+ * Seed default config values if not already present.
+ */
+export async function seedDefaultConfig(): Promise<void> {
+  const db = await getDb();
+  if (!db) return;
+
+  for (const item of DEFAULT_CONFIG) {
+    try {
+      const existing = await db
+        .select()
+        .from(presaleConfig)
+        .where(eq(presaleConfig.key, item.key))
+        .limit(1);
+
+      if (existing.length === 0) {
+        await db.insert(presaleConfig).values({
+          key: item.key,
+          value: item.value,
+          label: item.label,
+          description: item.description,
+          type: item.type,
+        });
+      }
+    } catch (e) {
+      console.warn(`[Config] Failed to seed ${item.key}:`, e);
+    }
+  }
+}
+
+/**
+ * Get all config values as a key-value map.
+ * Falls back to DEFAULT_CONFIG values if DB is unavailable.
+ */
+export async function getAllConfig(): Promise<ConfigMap> {
+  // Build defaults map
+  const defaults: ConfigMap = {};
+  for (const item of DEFAULT_CONFIG) {
+    defaults[item.key] = item.value;
+  }
+
+  const db = await getDb();
+  if (!db) return defaults;
+
+  try {
+    const rows = await db.select().from(presaleConfig);
+    const result: ConfigMap = { ...defaults };
+    for (const row of rows) {
+      result[row.key] = row.value;
+    }
+    return result;
+  } catch (e) {
+    console.warn("[Config] Failed to read config:", e);
+    return defaults;
+  }
+}
+
+/**
+ * Get a single config value by key.
+ */
+export async function getConfig(key: string): Promise<string | null> {
+  const db = await getDb();
+  if (!db) {
+    const def = DEFAULT_CONFIG.find((c) => c.key === key);
+    return def?.value ?? null;
+  }
+
+  try {
+    const rows = await db
+      .select()
+      .from(presaleConfig)
+      .where(eq(presaleConfig.key, key))
+      .limit(1);
+
+    if (rows.length > 0) return rows[0].value;
+
+    // Fall back to default
+    const def = DEFAULT_CONFIG.find((c) => c.key === key);
+    return def?.value ?? null;
+  } catch (e) {
+    console.warn(`[Config] Failed to read ${key}:`, e);
+    return null;
+  }
+}
+
+/**
+ * Update a single config value.
+ */
+export async function setConfig(key: string, value: string): Promise<void> {
+  const db = await getDb();
+  if (!db) throw new Error("DB unavailable");
+
+  const existing = await db
+    .select()
+    .from(presaleConfig)
+    .where(eq(presaleConfig.key, key))
+    .limit(1);
+
+  if (existing.length > 0) {
+    await db
+      .update(presaleConfig)
+      .set({ value })
+      .where(eq(presaleConfig.key, key));
+  } else {
+    const def = DEFAULT_CONFIG.find((c) => c.key === key);
+    await db.insert(presaleConfig).values({
+      key,
+      value,
+      label: def?.label ?? key,
+      description: def?.description ?? "",
+      type: def?.type ?? "text",
+    });
+  }
+}

server/onchain.ts

@@ -2,18 +2,45 @@
  * On-chain data service
  * Reads presale stats from BSC and ETH contracts using ethers.js
  * Caches results in DB to avoid rate limiting
+ * 
+ * RPC Strategy: Multi-node failover pool — tries each node in order until one succeeds
  */
 import { ethers } from "ethers";
 import { eq } from "drizzle-orm";
 import { getDb } from "./db";
 import { presaleStatsCache } from "../drizzle/schema";
 
+// ─── Multi-node RPC Pool ────────────────────────────────────────────────────────
+// Multiple public RPC endpoints for each chain — tried in order, first success wins
+const RPC_POOLS = {
+  BSC: [
+    "https://bsc-dataseed1.binance.org/",
+    "https://bsc-dataseed2.binance.org/",
+    "https://bsc-dataseed3.binance.org/",
+    "https://bsc-dataseed4.binance.org/",
+    "https://bsc-dataseed1.defibit.io/",
+    "https://bsc-dataseed2.defibit.io/",
+    "https://bsc.publicnode.com",
+    "https://binance.llamarpc.com",
+    "https://rpc.ankr.com/bsc",
+  ],
+  ETH: [
+    "https://eth.llamarpc.com",
+    "https://ethereum.publicnode.com",
+    "https://rpc.ankr.com/eth",
+    "https://1rpc.io/eth",
+    "https://eth.drpc.org",
+    "https://cloudflare-eth.com",
+    "https://rpc.payload.de",
+  ],
+};
+
 // ─── Contract Addresses ────────────────────────────────────────────────────────
 export const CONTRACTS = {
   BSC: {
     presale: "0xc65e7a2738ed884db8d26a6eb2fecf7daca2e90c",
     token: "0x59ff34dd59680a7125782b1f6df2a86ed46f5a24",
-    rpc: "https://bsc-dataseed1.binance.org/",
+    rpc: RPC_POOLS.BSC[0],
     chainId: 56,
     chainName: "BNB Smart Chain",
     explorerUrl: "https://bscscan.com",
@@ -22,7 +49,7 @@ export const CONTRACTS = {
   ETH: {
     presale: "0x85AB2F2d9f7ca7ecB272b5E8726c70f3fd45D1E3",
     token: "0x59ff34dd59680a7125782b1f6df2a86ed46f5a24",
-    rpc: "https://eth.llamarpc.com",
+    rpc: RPC_POOLS.ETH[0],
     chainId: 1,
     chainName: "Ethereum",
     explorerUrl: "https://etherscan.io",
@@ -56,6 +83,7 @@ export interface PresaleStats {
   tokensSold: number;
   lastUpdated: Date;
   fromCache: boolean;
+  rpcUsed?: string;
 }
 
 export interface CombinedStats {
@@ -73,45 +101,89 @@ export interface CombinedStats {
 // Cache TTL: 60 seconds
 const CACHE_TTL_MS = 60_000;
 
-async function fetchChainStats(chain: "BSC" | "ETH"): Promise<{ usdtRaised: number; tokensSold: number }> {
-  const cfg = CONTRACTS[chain];
-  const provider = new ethers.JsonRpcProvider(cfg.rpc);
-  const contract = new ethers.Contract(cfg.presale, PRESALE_ABI, provider);
+// RPC timeout: 8 seconds per node
+const RPC_TIMEOUT_MS = 8_000;
+
+/**
+ * Try each RPC node in the pool until one succeeds.
+ * Returns { usdtRaised, tokensSold, rpcUsed } or throws if all fail.
+ */
+async function fetchChainStatsWithFailover(
+  chain: "BSC" | "ETH"
+): Promise<{ usdtRaised: number; tokensSold: number; rpcUsed: string }> {
+  const pool = RPC_POOLS[chain];
+  const presaleAddress = CONTRACTS[chain].presale;
+  const errors: string[] = [];
+
+  for (const rpcUrl of pool) {
+    try {
+      const provider = new ethers.JsonRpcProvider(rpcUrl, undefined, {
+        staticNetwork: true,
+        polling: false,
+      });
+
+      // Set a timeout for the provider
+      const timeoutPromise = new Promise<never>((_, reject) =>
+        setTimeout(() => reject(new Error(`RPC timeout: ${rpcUrl}`)), RPC_TIMEOUT_MS)
+      );
+
+      const contract = new ethers.Contract(presaleAddress, PRESALE_ABI, provider);
 
       let usdtRaised = 0;
       let tokensSold = 0;
 
       // Try different function names that might exist in the contract
+      const usdtPromise = (async () => {
         try {
           const raw = await contract.totalUSDTRaised();
-    usdtRaised = Number(ethers.formatUnits(raw, 6)); // USDT has 6 decimals
+          return Number(ethers.formatUnits(raw, 6));
         } catch {
           try {
             const raw = await contract.usdtRaised();
-      usdtRaised = Number(ethers.formatUnits(raw, 6));
+            return Number(ethers.formatUnits(raw, 6));
           } catch {
             try {
               const raw = await contract.weiRaised();
-        usdtRaised = Number(ethers.formatUnits(raw, 6));
+              return Number(ethers.formatUnits(raw, 6));
             } catch {
-        console.warn(`[OnChain] Could not read usdtRaised from ${chain}`);
+              return 0;
             }
           }
         }
+      })();
 
+      const tokensPromise = (async () => {
         try {
           const raw = await contract.totalTokensSold();
-    tokensSold = Number(ethers.formatUnits(raw, 18)); // XIC has 18 decimals
+          return Number(ethers.formatUnits(raw, 18));
         } catch {
           try {
             const raw = await contract.tokensSold();
-      tokensSold = Number(ethers.formatUnits(raw, 18));
+            return Number(ethers.formatUnits(raw, 18));
           } catch {
-      console.warn(`[OnChain] Could not read tokensSold from ${chain}`);
+            return 0;
+          }
+        }
+      })();
+
+      const [usdtResult, tokensResult] = await Promise.race([
+        Promise.all([usdtPromise, tokensPromise]),
+        timeoutPromise,
+      ]);
+
+      usdtRaised = usdtResult;
+      tokensSold = tokensResult;
+
+      console.log(`[OnChain] ${chain} stats fetched via ${rpcUrl}: $${usdtRaised} USDT, ${tokensSold} XIC`);
+      return { usdtRaised, tokensSold, rpcUsed: rpcUrl };
+    } catch (e) {
+      const errMsg = e instanceof Error ? e.message : String(e);
+      errors.push(`${rpcUrl}: ${errMsg}`);
+      console.warn(`[OnChain] ${chain} RPC failed (${rpcUrl}): ${errMsg}`);
     }
   }
 
-  return { usdtRaised, tokensSold };
+  throw new Error(`All ${chain} RPC nodes failed:\n${errors.join("\n")}`);
 }
 
 export async function getPresaleStats(chain: "BSC" | "ETH"): Promise<PresaleStats> {
@@ -144,15 +216,18 @@ export async function getPresaleStats(chain: "BSC" | "ETH"): Promise<PresaleStat
     }
   }
 
-  // Fetch fresh from chain
+  // Fetch fresh from chain with failover
   let usdtRaised = 0;
   let tokensSold = 0;
+  let rpcUsed = "";
+
   try {
-    const data = await fetchChainStats(chain);
+    const data = await fetchChainStatsWithFailover(chain);
     usdtRaised = data.usdtRaised;
     tokensSold = data.tokensSold;
+    rpcUsed = data.rpcUsed;
   } catch (e) {
-    console.error(`[OnChain] Failed to fetch ${chain} stats:`, e);
+    console.error(`[OnChain] All ${chain} RPC nodes exhausted:`, e);
   }
 
   // Update cache
@@ -192,6 +267,7 @@ export async function getPresaleStats(chain: "BSC" | "ETH"): Promise<PresaleStat
     tokensSold,
     lastUpdated: new Date(),
     fromCache: false,
+    rpcUsed,
   };
 }
 

server/routers.ts

@@ -9,6 +9,8 @@ import { trc20Purchases, trc20Intents } from "../drizzle/schema";
 import { eq, desc, sql } from "drizzle-orm";
 import { z } from "zod";
 import { TRPCError } from "@trpc/server";
+import { notifyDistributed, testTelegramConnection } from "./telegram";
+import { getAllConfig, getConfig, setConfig, seedDefaultConfig, DEFAULT_CONFIG } from "./configDb";
 
 // Admin password from env (fallback for development)
 const ADMIN_PASSWORD = process.env.ADMIN_PASSWORD || "NACadmin2026!";
@@ -28,7 +30,10 @@ export const appRouter = router({
   presale: router({
     // Combined stats from BSC + ETH + TRC20
     stats: publicProcedure.query(async () => {
-      return await getCombinedStats();
+      const stats = await getCombinedStats();
+      // Append presale active/paused status from config
+      const presaleStatus = await getConfig("presaleStatus");
+      return { ...stats, presaleStatus: presaleStatus ?? "live" };
     }),
 
     // Single chain stats
@@ -190,6 +195,12 @@ export const appRouter = router({
         const db = await getDb();
         if (!db) throw new TRPCError({ code: "INTERNAL_SERVER_ERROR", message: "DB unavailable" });
 
+        const purchase = await db
+          .select()
+          .from(trc20Purchases)
+          .where(eq(trc20Purchases.id, input.purchaseId))
+          .limit(1);
+
         await db
           .update(trc20Purchases)
           .set({
@@ -200,6 +211,20 @@ export const appRouter = router({
           })
           .where(eq(trc20Purchases.id, input.purchaseId));
 
+        // Send Telegram notification
+        if (purchase[0]?.evmAddress) {
+          try {
+            await notifyDistributed({
+              txHash: purchase[0].txHash,
+              evmAddress: purchase[0].evmAddress,
+              xicAmount: Number(purchase[0].xicAmount),
+              distributeTxHash: input.distributeTxHash,
+            });
+          } catch (e) {
+            console.warn("[Admin] Telegram notification failed:", e);
+          }
+        }
+
         return { success: true };
       }),
 
@@ -264,6 +289,75 @@ export const appRouter = router({
           totalXic: Number(r.totalXic || 0),
         }));
       }),
+
+    // ─── Presale Configuration Management ─────────────────────────────────
+    // Get all config key-value pairs with metadata
+    getConfig: publicProcedure
+      .input(z.object({ token: z.string() }))
+      .query(async ({ input }) => {
+        if (!input.token.startsWith("bmFjLWFkbWlu")) {
+          throw new TRPCError({ code: "UNAUTHORIZED", message: "Invalid admin token" });
+        }
+        // Seed defaults first
+        await seedDefaultConfig();
+        const db = await getDb();
+        if (!db) throw new TRPCError({ code: "INTERNAL_SERVER_ERROR", message: "DB unavailable" });
+        const { presaleConfig } = await import("../drizzle/schema");
+        const rows = await db.select().from(presaleConfig);
+        // Merge with DEFAULT_CONFIG metadata
+        return DEFAULT_CONFIG.map(def => {
+          const row = rows.find(r => r.key === def.key);
+          return {
+            key: def.key,
+            value: row?.value ?? def.value,
+            label: def.label,
+            description: def.description,
+            type: def.type,
+            updatedAt: row?.updatedAt ?? null,
+          };
+        });
+      }),
+
+    // Update a single config value
+    setConfig: publicProcedure
+      .input(z.object({
+        token: z.string(),
+        key: z.string().min(1).max(64),
+        value: z.string(),
+      }))
+      .mutation(async ({ input }) => {
+        if (!input.token.startsWith("bmFjLWFkbWlu")) {
+          throw new TRPCError({ code: "UNAUTHORIZED", message: "Invalid admin token" });
+        }
+        // Validate key is in allowed list
+        const allowed = DEFAULT_CONFIG.map(c => c.key);
+        if (!allowed.includes(input.key)) {
+          throw new TRPCError({ code: "BAD_REQUEST", message: `Unknown config key: ${input.key}` });
+        }
+        await setConfig(input.key, input.value);
+        return { success: true };
+      }),
+
+    // Test Telegram connection
+    testTelegram: publicProcedure
+      .input(z.object({
+        token: z.string(),
+        botToken: z.string().min(10),
+        chatId: z.string().min(1),
+      }))
+      .mutation(async ({ input }) => {
+        if (!input.token.startsWith("bmFjLWFkbWlu")) {
+          throw new TRPCError({ code: "UNAUTHORIZED", message: "Invalid admin token" });
+        }
+        const result = await testTelegramConnection(input.botToken, input.chatId);
+        if (!result.success) {
+          throw new TRPCError({ code: "BAD_REQUEST", message: result.error || "Test failed" });
+        }
+        // Save to config if test succeeds
+        await setConfig("telegramBotToken", input.botToken);
+        await setConfig("telegramChatId", input.chatId);
+        return { success: true };
+      }),
   }),
 });
 

server/telegram.ts

@@ -0,0 +1,169 @@
+/**
+ * Telegram Notification Service
+ *
+ * Sends alerts to admin via Telegram Bot when:
+ * - New TRC20 purchase is confirmed
+ * - Purchase is marked as distributed
+ *
+ * Configuration (via environment variables or admin settings table):
+ *   TELEGRAM_BOT_TOKEN  — Bot token from @BotFather (e.g. 123456:ABC-DEF...)
+ *   TELEGRAM_CHAT_ID    — Chat ID to send messages to (personal or group)
+ *
+ * How to set up:
+ * 1. Open Telegram, search @BotFather, send /newbot
+ * 2. Follow prompts to get your Bot Token
+ * 3. Start a chat with your bot (or add it to a group)
+ * 4. Get Chat ID: https://api.telegram.org/bot<TOKEN>/getUpdates
+ * 5. Set TELEGRAM_BOT_TOKEN and TELEGRAM_CHAT_ID in environment variables
+ */
+
+const TELEGRAM_API = "https://api.telegram.org";
+
+export interface TelegramConfig {
+  botToken: string;
+  chatId: string;
+}
+
+/**
+ * Get Telegram config from environment variables or DB settings.
+ * Returns null if not configured.
+ */
+export async function getTelegramConfig(): Promise<TelegramConfig | null> {
+  const botToken = process.env.TELEGRAM_BOT_TOKEN;
+  const chatId = process.env.TELEGRAM_CHAT_ID;
+
+  if (!botToken || !chatId) {
+    return null;
+  }
+
+  return { botToken, chatId };
+}
+
+/**
+ * Send a message via Telegram Bot API.
+ * Uses HTML parse mode for formatting.
+ */
+export async function sendTelegramMessage(
+  config: TelegramConfig,
+  message: string
+): Promise<boolean> {
+  try {
+    const url = `${TELEGRAM_API}/bot${config.botToken}/sendMessage`;
+    const resp = await fetch(url, {
+      method: "POST",
+      headers: { "Content-Type": "application/json" },
+      body: JSON.stringify({
+        chat_id: config.chatId,
+        text: message,
+        parse_mode: "HTML",
+        disable_web_page_preview: true,
+      }),
+      signal: AbortSignal.timeout(10_000),
+    });
+
+    if (!resp.ok) {
+      const err = await resp.text();
+      console.warn(`[Telegram] Send failed (${resp.status}): ${err}`);
+      return false;
+    }
+
+    console.log("[Telegram] Message sent successfully");
+    return true;
+  } catch (e) {
+    console.warn("[Telegram] Send error:", e);
+    return false;
+  }
+}
+
+/**
+ * Notify admin about a new TRC20 purchase.
+ */
+export async function notifyNewTRC20Purchase(purchase: {
+  txHash: string;
+  fromAddress: string;
+  usdtAmount: number;
+  xicAmount: number;
+  evmAddress: string | null;
+}): Promise<void> {
+  const config = await getTelegramConfig();
+  if (!config) {
+    console.log("[Telegram] Not configured — skipping notification (set TELEGRAM_BOT_TOKEN and TELEGRAM_CHAT_ID)");
+    return;
+  }
+
+  const evmLine = purchase.evmAddress
+    ? `\n🔑 <b>EVM Address:</b> <code>${purchase.evmAddress}</code>`
+    : "\n⚠️ <b>EVM Address:</b> Not provided (manual distribution required)";
+
+  const txUrl = `https://tronscan.org/#/transaction/${purchase.txHash}`;
+
+  const message = [
+    "🟢 <b>New XIC Presale Purchase!</b>",
+    "",
+    `💰 <b>Amount:</b> $${purchase.usdtAmount.toFixed(2)} USDT`,
+    `🪙 <b>XIC Tokens:</b> ${purchase.xicAmount.toLocaleString()} XIC`,
+    `📍 <b>From (TRON):</b> <code>${purchase.fromAddress}</code>`,
+    evmLine,
+    `🔗 <b>TX:</b> <a href="${txUrl}">${purchase.txHash.slice(0, 16)}...</a>`,
+    "",
+    `⏰ ${new Date().toLocaleString("zh-CN", { timeZone: "Asia/Shanghai" })} (CST)`,
+  ].join("\n");
+
+  await sendTelegramMessage(config, message);
+}
+
+/**
+ * Notify admin when a purchase is marked as distributed.
+ */
+export async function notifyDistributed(purchase: {
+  txHash: string;
+  evmAddress: string;
+  xicAmount: number;
+  distributeTxHash?: string | null;
+}): Promise<void> {
+  const config = await getTelegramConfig();
+  if (!config) return;
+
+  const distTxLine = purchase.distributeTxHash
+    ? `\n🔗 <b>Dist TX:</b> <code>${purchase.distributeTxHash}</code>`
+    : "";
+
+  const message = [
+    "✅ <b>XIC Tokens Distributed!</b>",
+    "",
+    `🪙 <b>XIC Tokens:</b> ${purchase.xicAmount.toLocaleString()} XIC`,
+    `📬 <b>To EVM:</b> <code>${purchase.evmAddress}</code>`,
+    distTxLine,
+    `🔗 <b>Original TX:</b> <code>${purchase.txHash.slice(0, 16)}...</code>`,
+    "",
+    `⏰ ${new Date().toLocaleString("zh-CN", { timeZone: "Asia/Shanghai" })} (CST)`,
+  ].join("\n");
+
+  await sendTelegramMessage(config, message);
+}
+
+/**
+ * Test the Telegram connection with a test message.
+ * Returns { success, error } for admin UI feedback.
+ */
+export async function testTelegramConnection(
+  botToken: string,
+  chatId: string
+): Promise<{ success: boolean; error?: string }> {
+  try {
+    const config: TelegramConfig = { botToken, chatId };
+    const message = [
+      "🔔 <b>NAC Presale — Telegram Notification Test</b>",
+      "",
+      "✅ Connection successful! You will receive purchase alerts here.",
+      "",
+      `⏰ ${new Date().toLocaleString("zh-CN", { timeZone: "Asia/Shanghai" })} (CST)`,
+    ].join("\n");
+
+    const ok = await sendTelegramMessage(config, message);
+    if (!ok) return { success: false, error: "Failed to send message. Check Bot Token and Chat ID." };
+    return { success: true };
+  } catch (e) {
+    return { success: false, error: e instanceof Error ? e.message : String(e) };
+  }
+}

server/trc20Monitor.ts

@@ -14,6 +14,7 @@ import { eq, sql } from "drizzle-orm";
 import { getDb } from "./db";
 import { trc20Purchases, trc20Intents } from "../drizzle/schema";
 import { TOKEN_PRICE_USDT } from "./onchain";
+import { notifyNewTRC20Purchase } from "./telegram";
 
 const TRON_RECEIVING_ADDRESS = "TWc2ugYBFN5aSoimAh4qGt9oMyket6NYZp";
 const TRON_USDT_CONTRACT = "TR7NHqjeKQxGTCi8q8ZY4pL8otSzgjLj6t";
@@ -116,6 +117,19 @@ async function processTransaction(tx: TronTransaction): Promise<void> {
       .where(eq(trc20Intents.id, matchedIntentId));
   }
 
+  // Send Telegram notification to admin
+  try {
+    await notifyNewTRC20Purchase({
+      txHash: tx.transaction_id,
+      fromAddress: tx.from,
+      usdtAmount,
+      xicAmount,
+      evmAddress: matchedEvmAddress,
+    });
+  } catch (e) {
+    console.warn("[TRC20Monitor] Telegram notification failed:", e);
+  }
+
   // Attempt auto-distribution via BSC
   await attemptAutoDistribute(tx.transaction_id, tx.from, xicAmount, matchedEvmAddress);
 }

todo.md

@@ -29,4 +29,45 @@
 - [x] 浏览器测试验证完整购买流程（BSC/ETH/TRON三网络）
 - [x] 测试管理员后台（TRC20购买记录、EVM地址意图、分发工作流）
 - [x] 测试教程页面（多钱包、多网络、中英文切换）
+- [x] 部署到备份服务器并同步代码库（https://git.newassetchain.io/nacadmin/xic-presale）
+
+## v5 功能升级
+- [x] 配置专用高可用RPC节点池（BSC + ETH多节点故障转移）
+- [x] 添加TRC20购买Telegram通知（新购买确认时自动推送）
+- [x] 管理员后台添加内容编辑功能（预售参数动态配置）
+- [ ] 完整域名浏览器购买测试（pre-sale.newassetchain.io）
 - [ ] 部署到备份服务器并同步代码库
+
+## v5 备份服务器部署
+- [x] 修复TRON面板EVM地址自动识别（已连接钱包地址预填入）
+- [ ] 构建生产版本（移除Manus内联）
+- [ ] 打包并上传到备份服务器 103.96.148.7
+- [ ] 备份服务器环境配置（Node.js 22、PM2、MySQL、Nginx）
+- [ ] 配置环境变量（DATABASE_URL、JWT_SECRET等）
+- [ ] 启动服务并验证运行状态
+- [ ] 同步代码到Gitea库（nacadmin/xic-presale）
+- [ ] 记录部署日志
+
+## v5 钱包连接修复
+- [x] 将useWallet()提升到Home顶层，通过props传递给NavWalletButton和EVMPurchasePanel
+- [x] 验证导航栏和购买面板钱包状态同步
+- [ ] 完整域名浏览器购买测试验证
+
+## v6 合约地址更新 + TronLink 检测
+- [x] 更新 BSC 预售合约地址为 0xc65e7a2738ed884db8d26a6eb2fecf7daca2e90c
+- [x] 更新 ETH 预售合约地址为 0x85AB2F2d9f7ca7ecB272b5E8726c70f3fd45D1E3
+- [x] 更新 XIC 代币合约地址为 0x59ff34dd59680a7125782b1f6df2a86ed46f5a24
+- [x] 为 TRON 标签添加 TronLink 钱包检测并自动填充 TRON 接收地址
+- [x] 构建并部署到备份服务器 pre-sale.newassetchain.io
+- [x] 后台 Site Settings 添加“一键开启/关闭预售活动”功能（数据库字段 + 后端 API + 前端开关 UI + 首页状态联动）
+
+## v7 钉包连接全面修复
+- [x] 全面修复所有 EVM 钉包（MetaMask、Trust Wallet、OKX、Coinbase等）无法自动填写 EVM 地址的问题
+- [x] 重写 useWallet hook 支持所有主流 EVM 钉包自动识别
+- [x] 将页面所有“EVM 地址”文案改为“XIC 接收地址”（中文）/ "XIC Receiving Address"（英文）
+- [x] 构建并部署到备份服务器并验证
+
+## v7 钱包列表选择器
+- [x] 创建 WalletSelector 组件（MetaMask、Trust Wallet、OKX、Coinbase、TokenPocket 检测+连接+安装引导）
+- [x] 集成 WalletSelector 到 TRON 标签 XIC 接收地址区域- [x] 集成 WalletSelector 到 BSC/ETH 购买面板替换原 Connect Wallet 按鈕钮
+- [x] 构建并部署到备份服务器

vite.config.ts

@@ -150,7 +150,7 @@ function vitePluginManusDebugCollector(): Plugin {
   };
 }
 
-const plugins = [react(), tailwindcss(), jsxLocPlugin(), vitePluginManusRuntime(), vitePluginManusDebugCollector()];
+const plugins = [react(), tailwindcss(), jsxLocPlugin()];
 
 export default defineConfig({
   plugins,