Update pull request template (#2533)

.github/pull_request_template.md

@@ -12,8 +12,23 @@ Closes #__
 
 1. *(Is there anything else the reviewer should know or look out for?)*
 
+## AI Usage
+
+Please disclose how you've used AI in this work (it's cool, we just want to know!):
+
+- [ ] Code generation (copilot but not intellisense)
+- [ ] Learning or fact checking
+- [ ] Strategy / design
+- [ ] Optimisation / refactoring
+- [ ] Translation / spellchecking / doc gen
+- [ ] Other
+- [ ] I have not used AI
+
+You can read more details in our [Responsible AI Policy](https://www.openfn.org/ai#pull-request-templates)
+
 ### Pre-submission checklist
 
 - [ ] I have performed a **self-review** of my code.
 - [ ] I have implemented and tested all related **authorization policies**. (e.g., `:owner`, `:admin`, `:editor`, `:viewer`)
 - [ ] I have updated the **changelog**.
+- [ ] I have ticked a box in "AI usage" in this PR