feat: release notes

Each release can carry notes in Markdown, written before or after it
ships. A draft is generated from its finished tickets grouped by type, to
edit and copy from the releases page.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

libs/api/tracker/application/src/lib/queries/query-handlers.ts

@@ -18,6 +18,7 @@ import { GetUpcomingReleasesQueryHandler } from './get-upcoming-releases.query-h
 import { SearchIssuesQueryHandler } from './search-issues.query-handler';
 import { GetEpicsQueryHandler } from './get-epics.query-handler';
 import { SPRINT_QUERY_HANDLERS } from './sprint.queries';
+import { GetReleaseNotesDraftQueryHandler } from './get-release-notes-draft.query';
 import { SearchMyIssuesQueryHandler } from './search-my-issues.query-handler';
 
 export const QUERY_HANDLERS = [
@@ -40,6 +41,7 @@ export const QUERY_HANDLERS = [
   SearchIssuesQueryHandler,
   GetEpicsQueryHandler,
   ...SPRINT_QUERY_HANDLERS,
+  GetReleaseNotesDraftQueryHandler,
   SearchMyIssuesQueryHandler,
   GetAttachmentQueryHandler,
 ];