feat: add order tokens helpers

Author: luchobonatti

src/helpers/tokens.ts

@@ -0,0 +1,14 @@
+/**
+ * Sorts two tokens in a consistent order (lexicographically by address)
+ * @param token0 First token address
+ * @param token1 Second token address
+ * @returns Tuple of [token0, token1] in sorted order
+ */
+export function sortTokens(
+	token0: `0x${string}`,
+	token1: `0x${string}`,
+): [`0x${string}`, `0x${string}`] {
+	return token0.toLowerCase() < token1.toLowerCase()
+		? [token0, token1]
+		: [token1, token0];
+}