PreparedStatement.executeQuery does not mark the result set as requested #107

LibsqlPreparedStatement.executeQuery calls assignResultSet(resultSet, false). LibsqlStatement.executeQuery passes true, which is the contract from #85.

With a prepared statement, ps.executeQuery(); ps.getResultSet() returns the same open result set. sqlite-jdbc throws because JDBC3PreparedStatement.executeQuery ends in getResultSet(), so a second request fails.

LibsqlStatementLifecycleTest covers only the plain Statement.

Expected:

• Pass true in the prepared path.
• Add the prepared statement case to the lifecycle tests.