I delete my pre and post w/out carbs r days I do not workout for the same reasons you sighted. I go with 1/3 c oats in the morning everyday.
Don't be too concerned about carbs in fibrous veggies. She won't gain weight eating broccoli or leafy veggies. Do watch in fruit. If i have fruit it is only 1/ 2 c of berries, mostly blueberries. I never eat bananas or peanut butter on a cut.
As far as fat, never heard about eating them before sleeping. Doesn't mean I don't agree but not sure the benefits outweigh what I see as the downside. Plus Gals tend to have higher bf. I would go with a protein or so nothing b4 I reached for a fat.
Also, plz make sure she is on a good multivitamin.

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I hope she is comfortable having you update her progress cuz I am interested and a great cheerleader. Lol.