Adopt policy regarding AI code contributions

Pioneer rejects code contributions generated in whole or in material part by use of AI tools / models.

Policy approved by active maintainers (in order of seniority):

Signed-off-by: @impaktor 
Signed-off-by: @bszlrd 
Signed-off-by: @sturnclaw

README.md

@@ -78,6 +78,12 @@ pull request, see:
 Pioneer development documentation
   https://dev.pioneerspacesim.net/
 
+### AI Policy
+
+Pioneer does not accept AI-generated code contributions. Code contributions generated by AI do not comply with and cannot be licensed under Pioneer's GPLv3 license, and as such the project maintainers will reject pull requests containing wholly or in large part AI-generated code.
+
+We do not condemn the use of AI-powered autocomplete as a secondary assistive tool for experienced programmers, but cannot accept any contributions where AI-generated code forms a material part of the contribution. This includes AI-generated comments and design suggestions.
+
 ## Localization
 
 Localization for Pioneer is handled trough Transifex, and pulled to the source from there automatically. Because of this please don't make pull requests for translations. [You can find the localization project here.](https://www.transifex.com/pioneer/pioneer/dashboard/)