Fix: if token is sol

src/tools/trade.ts

@@ -22,20 +22,26 @@ export async function trade(
   slippageBps: number = DEFAULT_OPTIONS.SLIPPAGE_BPS,
 ): Promise<string> {
   try {
-    const mintInfo = await getMint(agent.connection, inputMint);
-    const inputDecimals = mintInfo.decimals;
+    // Check if input token is native SOL
+    const isNativeSol = inputMint.equals(TOKENS.SOL);
+    
+    // For native SOL, we use LAMPORTS_PER_SOL, otherwise fetch mint info
+    const inputDecimals = isNativeSol 
+      ? 9  // SOL always has 9 decimals
+      : (await getMint(agent.connection, inputMint)).decimals;
 
     // Calculate the correct amount based on actual decimals
     const scaledAmount = inputAmount * Math.pow(10, inputDecimals);
+    
     const quoteResponse = await (
       await fetch(
         `${JUP_API}/quote?` +
-          `inputMint=${inputMint.toString()}` +
-          `&outputMint=${outputMint.toString()}` +
-          `&amount=${scaledAmount}` +
-          `&slippageBps=${slippageBps}` +
-          `&onlyDirectRoutes=true` +
-          `&maxAccounts=20`,
+        `inputMint=${isNativeSol ? TOKENS.SOL.toString() : inputMint.toString()}` +
+        `&outputMint=${outputMint.toString()}` +
+        `&amount=${scaledAmount}` +
+        `&slippageBps=${slippageBps}` +
+        `&onlyDirectRoutes=true` +
+        `&maxAccounts=20`,
       )
     ).json();