feat: add Solana USDT/USDC support and refine admin payouts UI

app/api/admin/treasury/balances/route.ts

@@ -0,0 +1,72 @@
+
+import { NextRequest, NextResponse } from 'next/server';
+import { db } from '@/lib/db';
+import { CryptoEngine } from '@/lib/crypto-engine';
+import { ethers } from 'ethers';
+import { PublicKey } from '@solana/web3.js';
+
+export async function GET() {
+    try {
+        // 1. Fetch platform addresses from settings
+        const settingsRes = await db.query("SELECT key, value FROM system_settings WHERE key IN ('sol_platform_address', 'evm_platform_address', 'tron_platform_address', 'btc_platform_address')");
+        const settings: Record<string, string> = {};
+        settingsRes.rows.forEach(r => settings[r.key] = r.value);
+
+        const addresses = {
+            EVM: settings.evm_platform_address || "0x70997970C51812dc3A010C7d01b50e0d17dc79C8",
+            SOLANA: settings.sol_platform_address || "Ajr4nKieZJVu9q2d1eVF9pQPRCLoZ6v4tapB3iQn2SyQ",
+            TRON: settings.tron_platform_address || "TY795B6FmDNV4Xm5U6G1rP9yvX7S9rK6G1P", // Valid TRON address format
+            BITCOIN: settings.btc_platform_address || "17V95B6FmDNV4Xm5U6G1rP9yvX7S9rK6G1P" // Valid BTC address format
+        };
+
+        // 2. Fetch balances for each network from config
+        const cryptoConfig = require('@/lib/crypto-config.json');
+        const balances: any = {};
+        
+        for (const netConfig of cryptoConfig.networks) {
+            const net = netConfig.id;
+            console.log(`[Treasury] Fetching balances for ${net}...`);
+            const engine = new CryptoEngine(net);
+            const addr = (addresses as any)[['POLYGON', 'BSC', 'ETH'].includes(net) ? 'EVM' : net];
+            
+            if (!addr) {
+                console.warn(`[Treasury] No address found for network ${net}`);
+                continue;
+            }
+
+            try {
+                const tokenBalances: Record<string, string> = {};
+                let nativeBalance = "0.00";
+                let nativeSymbol = net;
+
+                for (const token of netConfig.tokens) {
+                    const balance = await engine.getBalance(addr, token.symbol);
+                    if (token.address === 'NATIVE') {
+                        nativeBalance = balance;
+                        nativeSymbol = token.symbol;
+                    } else {
+                        tokenBalances[token.symbol] = balance;
+                    }
+                }
+
+                balances[net] = {
+                    address: addr,
+                    native: nativeBalance,
+                    nativeSymbol: nativeSymbol,
+                    tokens: tokenBalances
+                };
+            } catch (err) {
+                console.error(`[Treasury Balance Error] ${net}:`, err);
+                balances[net] = { address: addr, native: "Error", tokens: {} };
+            }
+        }
+
+        return NextResponse.json({
+            success: true,
+            balances
+        });
+
+    } catch (error: any) {
+        return NextResponse.json({ error: error.message }, { status: 500 });
+    }
+}