More fun with Shipyards and Outfitting:
A Coriolis with 4 Large Bio Research settlements on the planet and a security station in orbit was only at 105% HT (and 30% Military), the amount you'd get with only 3 Large Bio Research settlements. This is consistent with the bug in which the most recent construction is not propagating its effects. The station sold 18 ships and about 670 modules give or take.
The current hypothesis about shipyard and outfitting is that Development Level is one of if not THE key factor in availability of ships and modules.
I added a Large Industrial Settlement, primarily because it adds 9 Dev level points all by itself. The Coriolis reshuffled its shipyard/modules...and became 135% HT with no Industry. This again is consistent with the most recent construction not propagating, and the next most recent one suddenly standing up and saying hi. Now the Coriolis sells 22 ships and 760 modules. The change from a single large Bio Research Settlement is +10 HT and +3 Dev level.
The additional tech level did not change anything visible in the station's available services. I guess 42 Tech Level is more than enough.
The high tech market is appropriately more robust with both supply and demand, and consistent with having more tech level.
The next step is to do nothing until the bug with lagging influence is fixed, so I can see what 9 more Development Level points do to the shipyard and outfitting. I have one open slot remaining on the planet, so I could go with another large Industry settlement if the first one does something beneficial.