hi. the hotel itself doesn't have one.
No they dont have but they have coffee shop where you can have some refreshments
They have a club lounge for sure where they serve refreshments and juice but no idea about the bar as haven't needed to ask for one :)
No, it doesn't. That is if you refer strictly to alcohol. The closest place is "Harvesters Pub" + another one or two bars inside Holiday Inn Hotel (former Sands Hotel), some 5 min walk down the same Electra Street.
Otherwise, there are lots of hotels, many with beautiful pubs, bars, night clubs, all over Abu Dhabi. Night clubs close around 3 AM. A taxi will be always easily available out on the street, to take you anywhere for a reasonable price - main Abu Dhabi is rather small.
Get an answer from City Seasons Al Hamara Hotel staff and past guests.