Congrats on getting Maple syrup!
There can be lots of reasons for bar chewing but boredom is the most common cause, the Hamster Heaven is a bit small for an adult Syrian but should be ok for a baby provided she has a big enough wheel (8" is ok for a baby but she will need aa larger one as she grows) plenty of deep substrate, fill the base of that cage, so she can dig & burrow if she wants to, a good size house so she has somewhere dark & comfortable to sleep is essential too, if you don't have a good size house with no base sat on the substrate you could make one from a cardboard box.
If those basic needs are met she should be happy enough.
Keep cleaning to a minimum too so she doesn't get stressed, just spot clean for the first few weeks then after that you can do partial cleans as needed.
Chew toys aren't really enjoyed by most hams, they love whimzee dog chews, some enjoy apple or hazel sticks too but not all by any means.
Scatter feeding & hiding food or treats in little parcels or toilet roll treat toys can really help keep them busy too.
Have a look at this thread for more ideas.
Managing Bar Chewers
And if you have a photo of your cage set up it might help us see if there any changes that may help.