## Description:
Relevant for singleplayer and HumansVsNations:
Humans sometimes try to flood the entire ocean with warships. The goal
is to dominate the trade and to block transport ships.
The already existing `trackTransportShipsAndRetaliate` and
`trackTradeShipsAndRetaliate` methods can't stop these large scale
infestations, the nations are completely helpless.
The new `counterWarshipInfestation` method checks if a nation is one of
the top 3 richest players (Enough money for warships) and if any enemy
(or enemy team) has accumulated more than 10 (for teams total 15)
warships, then builds a counter-warship targeting that threat.
This feature only activates on Hard or Impossible difficulty.
Thats how it can look, nations send out a warship every couple of
seconds, until the infestation threat is gone:
<img width="779" height="670" alt="Screenshot 2025-12-20 160600"
src="https://github.com/user-attachments/assets/25040077-e7db-4720-aea4-7c230afe05ea"
/>
## Please complete the following:
- [X] I have added screenshots for all UI updates
- [X] I process any text displayed to the user through translateText()
and I've added it to the en.json file
- [X] I have added relevant tests to the test directory
- [X] I confirm I have thoroughly tested these changes and take full
responsibility for any bugs introduced
## Please put your Discord username so you can be contacted if a bug or
regression is found:
FloPinguin
Ryan