update pull request template

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,28 +1,51 @@
-<!--- Provide a general summary of your changes in the Title above -->
+<!-- Provide a general summary of your changes in the Title above -->
 
 ## Description
-<!--- Describe your changes in detail -->
+
+<!-- Describe your changes in detail -->
+<!-- Focus on the implementation and any important technical decisions. -->
 
 ## Motivation and Context
-<!--- Why is this change required? What problem does it solve? -->
-<!--- If it fixes an open issue, please link to the issue here. -->
+
+<!-- Why is this change needed? What problem does it solve? -->
+<!-- Use "Fixes #123" or "Closes #123" when this pull request resolves an issue. -->
 
 ## How has this been tested?
-<!--- Please describe in detail how you tested your changes. -->
-<!--- Include details of your testing environment, tests ran to see how -->
-<!--- your change affects other areas of the code, etc. -->
 
-## Screenshots (if appropriate):
+<!-- Please describe in detail how you tested your changes. -->
+<!-- Include details of your testing environment, tests ran to see how -->
+<!-- your change affects other areas of the code, etc. -->
+
+## Screenshots:
+
+<!-- Add screenshots or recordings for visual changes. -->
+<!-- Remove this section if it is not applicable. -->
 
 ## Types of changes
-<!--- What types of changes does your code introduce? Put an `x` in all the boxes that apply: -->
+
+<!-- What types of changes does your code introduce? Put an `x` in all the boxes that apply: -->
+
 - [ ] Bug fix (non-breaking change which fixes an issue)
 - [ ] New feature (non-breaking change which adds functionality)
 - [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
+- [ ] Refactoring (change which does not alter existing functionality)
+- [ ] Documentation (changes to documentation only)
 
 ## Checklist:
-<!--- Go over all the following points, and put an `x` in all the boxes that apply. -->
-<!--- If you're unsure about any of these, don't hesitate to ask. We're here to help! -->
+
+<!-- Go over all the following points, and put an `x` in all the boxes that apply. -->
+<!-- If you're unsure about any of these, don't hesitate to ask. We're here to help! -->
+
+- [ ] I have reviewed my own changes.
 - [ ] My code follows the code style of this project.
+- [ ] I have added or updated tests where appropriate.
+- [ ] My changes do not include unrelated modifications.
 - [ ] My change requires a change to the documentation.
 - [ ] I have updated the documentation accordingly.
+
+## AI Disclosure:
+
+<!-- See the AI contribution policy: https://github.com/wg-easy/wg-easy/blob/master/contributing.md#ai-contribution-policy -->
+<!-- Disclose whether AI tools were used -->
+<!-- Which tools were used -->
+<!-- The extent to which they were used -->