What is the ruling on combining the intention of reciting Surat Al-Kahf on Friday as an act of drawing closer to Allah, with the intention of reciting it as a daily portion (wird)? And is it to be recited once or twice?

It is permissible to recite Surat Al-Kahf on Friday with the intention of gaining the reward for reciting it on this day and with the intention of reciting it as part of one's daily litany, due to their overlap. If a Muslim recites it twice, he will receive the reward for reciting it twice.