fix: use the basic calculator to compare very wei amounts

test/helpers/common.bash

@@ -301,7 +301,7 @@ function verify_native_token_balance() {
     local expected_final_balance_wei=$(echo "$initial_balance_wei + $amount_wei" | bc)
 
     # Check if final_balance matches the expected final balance
-    if [ "$final_balance_wei" -eq "$expected_final_balance_wei" ]; then
+    if [ "$(echo "$final_balance_wei == $expected_final_balance_wei" | bc)" -eq 1 ]; then
         echo "✅ Balance verification successful: final balance is correct."
     else
         echo "❌ Balance verification failed: expected $expected_final_balance_wei but got $final_balance_wei."