feat: subtext under pr title

fixtures/github/issues.pull_request.PR_kwDOSprint62.json

@@ -2,5 +2,11 @@
   "title": "feat(calendar): ship release handoff checklist in weekly planner",
   "state": "MERGED",
   "is_draft": false,
+  "author": {
+    "login": "rorycraft",
+    "avatar_url": "https://avatars.githubusercontent.com/u/7171?v=4"
+  },
+  "base_branch_name": "main",
+  "head_branch_name": "feat/release-handoff-checklist",
   "body": "## Release handoff checklist\n\nAdds the release checklist views and closes the loop for the May rollout.\n\n### Included\n- launch readiness checklist for QA, docs, and release engineering\n- handoff status badges in the weekly planner\n- empty-state copy for weeks without a scheduled release\n\n| Stage | Owner | Status |\n| --- | --- | --- |\n| QA sign-off | `@mariahops` | Done |\n| Docs publish | `@rorycraft` | Done |\n| Release window confirm | `@kennethnym` | Done |\n\n### Verification\n1. Open a release week and confirm checklist sections render in order.\n2. Mark each handoff item complete and confirm the summary badge updates.\n3. Review the planner on a narrow viewport.\n\n> The merged version intentionally keeps the checklist readable even when one section has no pending items.\n\n- [x] QA sign-off state is visible\n- [x] Docs handoff state is visible\n- [ ] Add screenshot coverage for the compact layout"
 }