Clean up repository structure and release docs

.github/pull_request_template.md

@@ -2,6 +2,10 @@
 
 Describe what changed and why.
 
+## Vibe Coding Disclosure
+
+Was this pull request vibe coded or assisted by generated code? If yes, describe what you manually reviewed before opening it.
+
 ## Screenshots Or Recordings
 
 Required for UI changes. Include before and after screenshots for changed UI, or at least one screenshot/recording for new UI.
@@ -14,6 +18,7 @@ List the checks you ran:
 
 - [ ] `swift test`
 - [ ] `swift build -c release`
+- [ ] `swift scripts/verify-pdf-annotations.swift`
 - [ ] `scripts/verify-release-artifacts.sh`
 - [ ] Manual UI check
 - [ ] Not run, because:
@@ -23,6 +28,7 @@ List the checks you ran:
 - [ ] I read `CONTRIBUTING.md`.
 - [ ] This pull request is focused on one behavior, fix, or documentation change.
 - [ ] I updated `CHANGELOG.md` for user-visible changes, or this change is not user-visible.
+- [ ] I documented the before/after behavior and QA performed.
 - [ ] UI changes include screenshots or recordings, or this pull request does not change UI.
 - [ ] Every screenshot, recording, and committed media file in this pull request is under 1 MB.
 - [ ] I explained any app-size impact from new assets, dependencies, or release packaging changes.