Hi,
I don't breed toy dogs, but with my cattle dogs, I deworm at two weeks old and then every two weeks afterwards. I start offering food at about 4 weeks, age depends on the pups, though. Some have no interest yet and some act as if they've been starved the whole time.
For the first meals, I usually just mix ground beef with goat milk blended together until it it very smooth and liquid enough to be easily lapped up. As they get better at eating, I start offering high quality kibble soaked in warm water.
As far as dewclaws and tails, I no longer remove those from my dogs. Turns out they actually use their declaws while working. I have also heard reports of a carpal tunnel like syndrome in dogs who have had their dewclaws removed. I don't know how true that is, but it makes some sense to me. Just make sure you remember to trim them regularly or if you go to a groomer, that they know to check for them. (Never hurts to make sure they've been trimmed when you pick her up from the groomer). Overgrown declaws, well overgrown claws no matter their location can cause painful issues.
Best wishes with your new baby!!
(pictures, please)