Groundwork for #5. vessels_owed carries the VESSEL TYPE rather than a
bare count, so a shield vessel finishing while the player is on a planet
comes back as a shield vessel. Fleet.add_ship takes a type, and vessels
already flying are re-statted when an upgrade is researched.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Forgejo #20, part 7 of #12 and the last of it. A hub stations
BASE_HUB_CAPACITY (2) transporters. Total berths are hubs x per-hub
capacity, so building another hub or researching "Freight Yards" both
raise it - which is the choice #12 asks the player to make.
Capacity follows the same shape as max_fleet_size() (sum a bonus over
`unlocked`) rather than being a second mechanism doing the same job, so
research applies to hubs already built, not only to ones placed
afterwards.
A queued-but-unbuilt transporter holds its berth. Without that a player
could order ten against two berths and only discover the problem when
they refused to appear. Ordering past the cap is refused outright, and
the two refusals - no hub at all, versus every berth taken - say which,
because "nothing happened" is exactly the bug reported against the
craft button.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
