I would consider how she'll likely be shooting. What rifles has she shot before? Will she take a shot off-hand? Will she use a tripod/bipod/sticks? Will she only shoot prone? Sitting? Kneeling? From a treestand? Blind? I would think about both where her skills are now and where she'll want them to be to have the most opportunities. So maybe she shoots 100 yards now off a bench or bipod and a straight-stock, bolt-action with a magnified optic would be best, but maybe there's more and better opportunities for shots on deer with a lever gun off-hand or kneeling with its drop at the heel and buckhorn or aperture sights or a red dot. Will she carry the rifle or just from the truck to the blind/stand? What length of pull fits her?
I know in these kinds of threads, people want to talk about guns and cartridges:
From a bench-type position with a bipod or rest and magnified optic, there are a lot of options in bolt-actions. Tikka seems like a really good value, and CZ offers a more traditional Mauser-action that's also more handsome. There are finer bolt-actions, of course, but I don't have a lot of experience to recommend one. The Dakotas look good. As an alternative to any bolt action, a Ruger No.1 B would be an outstanding choice and unique. There are new No. 1B's available at this time in .243, 6.5CM, and .257 Weatherby. The Weatherby is the most attractive, but would not be ideal for a lot of practice.
For a gun that's carried a lot in the field, a lever-gun, No. 1 A, or a mini bolt-action can be more pleasant. You're familiar with the Winchester '94. It's heavy and the weight is balanced forward. They feel heavier than they are. A big man might not consider that it's a lot of gun for a child or a slight woman. The Marlin 1894 shooting .357 or .44 Magnum is a lighter gun and easier for a person of slight build to shoot off-hand. It's easy to carry, and very reasonable for lots of practice. If a shot on deer is within 100 yards, there may be little practical difference in the result compared to a 30-30 or 32 Winchester. The Marlin easily mounts optics which can make things easier, especially low-power or non-magnified optics for inexperienced shooters. The lever-guns have good drop at the heel that make them ideal for shooting off-hand, but they're more awkward to shoot from prone. CZ and Howa make mini bolt-actions with straight-stocks (no drop at the heel) that have receivers shorter than a short action. They chamber cartridges like .223, 7.62x39, and 6.5 Grendel. Grendel has the most potential of these, but the 7.62x39 is fine at the shorter ranges you described. Grendel is basically 7.62x39 necked down to 6.5 and with the shoulders blown-out. With the right bullet, it's good on deer out to 350 yards or more and the ballistics, especially beyond 150 yards, compare well to .243. The Ruger No. 1A's are even shorter for a given barrel length than a mini or lever-action. As far as I can tell, the drop at heel is less than a lever gun but a bit more than most bolt guns. They're selling new in 6.5 Creedmoor, 250 Savage and .30-30. There's also some heavier cartridges and big bore handgun chamberings but I think they're less appealing for a young shooter.