Revise PR template for clarity and structure

Updated the pull request template to clarify guidelines and checklist items.

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,19 +1,17 @@
 <!--
 Please follow this template. The PR template applies whether you opened the PR via the web UI, `gh pr create`, or any other tool.
 
-If you're fixing an objective bug or a small focused issue, this should be quick. Big PRs without a prior issue or design discussion are likely to be closed or scoped down. See CONTRIBUTING.md.
+See CONTRIBUTING.md.
 -->
 
 ### Linked issue
 
 Closes #
 
-<!-- Bug fixes and behavior changes should reference an issue. Pure docs and refactors can skip this. -->
-
 ### Type of change
 
 - [ ] Bug fix
-- [ ] New feature (with prior issue + design alignment)
+- [ ] New feature
 - [ ] Refactor / code improvement
 - [ ] Docs
 
@@ -29,15 +27,13 @@ This is the section I read most carefully. I need to see that *you* tested this,
 - For UI changes: a screenshot or short video on every affected platform (mobile, web, desktop). UI claims without visual proof are not enough.
 - For behavior changes: the actual steps you ran, and what you observed.
 - For bug fixes: how you reproduced the bug before, and confirmed it's fixed after.
-
-AI-generated PR descriptions are fine in principle. AI-generated *verification claims* with no actual testing behind them are not, and they're easy to spot.
 -->
 
 ### Checklist
 
-- [ ] One focused change. Unrelated cleanups split out.
+- [ ] One focused change
 - [ ] `npm run typecheck` passes
 - [ ] `npm run lint` passes
-- [ ] `npm run format` ran (Biome)
-- [ ] UI changes include screenshots or video for every affected platform
+- [ ] `npm run format` passes
+- [ ] QA evidence
 - [ ] Tests added or updated where it made sense