Potential fix for code scanning alert no. 161: Incorrect conversion between integer types

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

Author: joel-rieke

sql/numbertype.go

@@ -1082,6 +1082,9 @@ func mustInt64(v interface{}) int64 {
 	case uint32:
 		return int64(tv)
 	case uint64:
+		if tv > math.MaxInt64 {
+			panic(fmt.Sprintf("value %d exceeds int64 range", tv))
+		}
 		return int64(tv)
 	case bool:
 		if tv {