As for repairing / rearming with the crucible, I seem to vaguely remember something about the ships that have hangars / pads being able to supply the ships landed...
Hmm...
Okey, Endeavor Q&A part one:
“Like the Javelin’s hangar, the number of ships allowed depends on the size of those ships, specifically. The Landing Bay is currently spec’d to be 30m wide, 65m deep running underneath the main spine of the Endeavor, and 10m tall. The included facilities and systems can accommodate possibly to 4 craft as space allows. Remember, that the general rule in Star Citizen is that ‘if it fits, it sits’ (with a max limit of four with regards to munitions/stores/etc.); so you can calculate the space any individual ship using those measurements.
So, Endeavor hangar has a max limit of 4 crafts munitions, stores and etc. wise. Think the implication here is that it can refuel and rearm up to 4 ships, though more could potentially land if they fit. (Probably like 30 furies or something.)
Oh, similar stuff in Odyssey Q&A:
Can the Odyssey refuel other ships or is it limited to the vehicles in its hangar?
The Odyssey can only refuel ships landed in its hangar via on-foot/manual refueling.
I think if ships like Endeavor and Odyssey can refuel (and probably rearm as well), then it'd be a bit silly for the garage ship not to be able to fulfil that function.
EDIT: Oh right, and Vulcan is specifically sold as "Refuel. Repair. Rearm."
If a medium ship can do that, I'm pretty sure the large garage ship can.