The main things to know what be she needs unlimited hay , 1/8th -1/4 a cup daily of pellets ( closer to a 1/8th since she is a dwarf ) – I split that over two meals . Keep the brand she has been using at the start as you would need to slowly transition to a new pellet if she is on not very good ones ( food coloured, seed mixes or low in fibre = not good, good brands are burgess , oxbow or I believe there are a couple more that I can’t think of the name of right now )
And unless you know what veges she has been getting and used to I wouldn’t for a week – let her settle in. Their stomachs upset easily with new foods or increased amounts so best to read up on introducing veges first and which ones are safe etc first
I use willow and apple sticks for mine – making sure they are not sprayed
These are the two I know are safe – there are more but there are also a lot that aren’t safe so again give yourself time to research it before adding to that but those two are great starters for keeping her teeth worn down.
You have done a wonderful thing! She would have died if released
As for toys – plastic baby keys , plastic stacking cups etc are good – just make sure it’s the tough baby plastic not the see through plastic that shards when broken
Toilet roll tubes stuffed with hay and cardboard boxes with holes cut out for her to hide in and hop through are good
Mine love their ware jumbo flexible plastic tunnel and living world large domes hideaways ( these are both on Amazon if that’s easier ) but aren’t nessasary over cardboard versions just chucking out some ideas