How often, and how, you'll need to clean is something you'll have to figure out as you go along. There are many variables, starting with space vs population.
The more space you have for 'X' number of birds makes everything easier.
Keeper access to said space and thus ease of maintenance is also a factor.
There's a good article about Space in my signature, check it out.
Will have to possibly burst your new chicken keeping bubble with some harsh truths.
Your tiny coop/run is going to be difficult to work with,
and will probably need frequent cleaning.
The tiny prefab coops are not well built with quality materials and usually way too small for happy, healthy chicken keeping, both from the birds
and the keepers points of view.
I would strongly encourage you to think about building a larger coop and run,
and keep the tiny coop/run for an isolation/broody/chick grow out enclosure.
This is the technique I loosely follow for run bedding:
Here's a great description of contents and how to manage organic 'bedding' in a run or coop...and there's a great video of what it looks like.
http://www.backyardchickens.com/t/1037998/muddy-run-help-please#post_16017992
I have a large walk-in coop and run and never 'clean' poops from the run,
and there is rarely any nasty odors. The bedding of a good
mix of
dry plant materials use facilitates this nicely, it's basically no maintenance other than adding more material from time to time. I was able to start with a big load of tree trimmings from the power company that had been aged(6 months). I collect
dry leaves in the fall (stored in feed bags in a shed) and add them occasionally, and other garden trimmings. I let my grass grow tall, mow and spread it out with discharge pattern, leave it to
dry a few day, then push it into rows with the mower discharge, rake it up and add to run.