I'm just a fishy guy, but I'll give you my 2 cents worth:
1.
Do bass eat continuously or do they fill up and go get a beer and watch T.V.?
I would say it depends on water temperature and the size of the meal. If it's cold and the bass just ate a forage fish 1/3 to 1/2 his body length, he could lay down and watch a whole Stooges marathon. In the Summer, he's going to metabolize that food much faster (LMB metabolism doubles with each 8 degree F rise in water temp, up to their optimum which is maybe 80 degrees), so he will be hungry after just an episode of Seinfeld. But LMB also eat because they're aggressive - After a 17" pizza they may still snack on chips in front of the tube.
2.
Do they roam a given area or hang close to a given structure?
I feel they are pretty territorial in my 1 acre pond -I would say they range in a limited area, concentrating around the structure found there. I know I can always catch this one LMB at the Christmas trees 20 feet out from the drain box.
3.
If they have no structure do they circle an entire pond?
Lab experiments on LMB have shown that given a complete lack of structure, they will distribute themselves in a tank pretty randomly. Given the least amount of structure (like a black line painted on one side of the tank), 80 to 90% of the bass will be found at the structure. I doubt any pond except an intentional fishbowl design is completely lacking in structure, so I don't think you can find a random distribution in a pond. But if you put in significant structure, you have a much better idea of where to look for the bass. If there are no trees, docks, rocks, tires, etc., the bass will decide what they think is interesting structure and you won't know where it is until you find them.
4.
Do they prefer a certain bait type or is it always a smorrrgasboard, depending on their environment-i.e. if edible will they eat it at any time?
That's the multimillion dollar BassMaster question. I will respect myself enough to answer when I get paid to fish.
5.
If I introduce a new forage type will it set them back?
Not sure I understand the question. If the new forage provides easier calories by being slower, dumber, or bigger (within the LMB's eating size limits), they will concentrate on it while it is available.
6.
If they have a non-available food source will they eat each other?
Most certainly. In LMB-only ponds, a few bigger LMB eat their offspring which eat the invertebrates that would normally feed the forage fish. Remember, there are two categories of LMB from fry on up - "would be cannibal" and "dinner."
Well, that's what I think. Now the more experienced pondmeisters and bass fishermen can correct me in depth.