Go back and read my finished post.
They are starships.
Done, (you're right in that my post was done before you finished editing it), I knew all those quotes.
Even so, when you refere to all navy vessels, you probably
colectivelly call them ships, and when to those without fixed positions (star capable, either by themselves or by Tenders), probably as starships.
That's the same as if you look at any navy Active Ships List (or at least those I've checked for other pourposes) in the Wikipedia, it includes also submarines, patrol boats, etc, all colectivelly called ships, regardless technically being ships, boats or other designations.
For the same reasons you give, as Imperial bases are told to be able to serve navy
ships, it should exclude any non jump capable boat/craft as being serviced by them?
See that in all fighting ships supplements (both in CT and MT) there are also non jump capable examples, but they are collectivelly said ships in the book title...
From MT:FSotSI (its designs are quite flawled, but I guess its Navy background is canon), page 6:
BatRon: Battle squadrons are created from battleships
And yet, we all know that many of them are composed by BT/BR combos...
And in this same book, the BRs are in the battleship section, so,again, colectivelly called battleships...
From MT:RS, page 33:
Naval depots are huge harboring areas for starships, naval personnel and supporting services (...)
A major focus for each naval depot is the maintenance of navy's starships(...)
providing in-depth training for all aspects of starship technology (...)
to tactical training in the use of starship weaponry
Off course, following your reasoning, BRs and other boats are excluded from depots, where they cannot be harbored nor maintained, nor can their technology or weaponry training be conducted...
Or we can colectivelly call all navy crafts as starships for easines of language?