What is the ruling on income earned from working as a warehouse manager in a supermarket that sells alcoholic beverages, given that the work is limited to counting them and providing reports without carrying them or directly handling them, and is this income considered unlawful?

The work you are doing is forbidden because it involves aiding in the sale of alcohol. You must be patient and endure until you find a permissible job, for whoever abandons something for the sake of Allah, Allah will compensate him with something better. "And whoever fears Allah – He will make for him a way out And will provide for him from where he does not expect" [Quran 65:2-3], and "And whoever relies upon Allah – then He is sufficient for him" [Quran 65:3].