Kano 748460e3a0 Tweaks package spawning logic for off-ships (#21098) ...

## About PR
PR'd again from #21045 because a mistake I made, apologies for this.

Off-ship packages are now spawned whenever they exist in the overmap.
Adjusted the warehouse to include a small room for newer packages to
come in, given the alternative was letting them spawn and scatter out of
nowhere in the middle of the round. Packages for roundstart non-hidden
locations like exoplanets or any other location with delivery spots
aren't affected by any of these changes.

Also when an off-ship becomes available for packages, operations receive
an announcement message about it.

## Images

<img width="416" height="512" alt="grr"
src="https://github.com/user-attachments/assets/a8d82a60-e18e-4fda-ac3f-acccc256c6f6"
/>

<img width="891" height="42"
alt="469941125-59633a9b-a32f-40ea-98b8-4a38fd0d31ac"
src="https://github.com/user-attachments/assets/bf5586e6-efea-4c01-af51-6c405107a8d0"
/>

2025-08-09 12:23:12 +00:00

..

antagonist

Turn more unmanaged global vars into GLOB (#20446)

2025-02-17 23:34:02 +00:00

atom

Revert "Fix missing pixels in new hairstyle" (#20854)

2025-06-17 02:33:31 +02:00

human

Turn more unmanaged global vars into GLOB (#20446)

2025-02-17 23:34:02 +00:00

simplemob

…

base.dm

Tweaks package spawning logic for off-ships (#21098)

2025-08-09 12:23:12 +00:00