I may have missed it somewhere... is that going to a part of things? I haven't seen anything in the research, improvements, or planet info or anywhere else to indicate that there would be such thing as planet or civ-wide happiness or morale. In GC2, managing this could be a big part of how you played.
I assume that since Alpha is focused on conquest, keeping morale involved could slow us down. Did a dev say something about this? (did a search and didn't find anything)