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23a46d8123
The cursor-paginated /timeline and /comments endpoints were sized for a problem the data shape doesn't have: prod p99 is ~30 comments per issue and the all-time max is ~1.1k. Time-based pagination also splits reply threads across page boundaries (orphan replies), which the frontend was papering over with an "orphan rescue" that promoted disconnected replies to top-level — confusing UX with no real benefit. Replace both endpoints with a single full-issue fetch, capped server-side at 2000 rows as a defensive safety net (never hit in practice). Server - /api/issues/:id/timeline now returns a flat ASC TimelineEntry[] (matches the legacy desktop contract — older Multica.app builds keep working because the wrapped TimelineResponse + cursors are gone, and the raw array shape was always what they consumed). - /api/issues/:id/comments drops limit/offset; only ?since is honoured for the CLI agent-polling flow. - Drop ListCommentsBefore/After/Latest, ListActivitiesBefore/After/Latest and the timelineCursor encoding. - Replace with ListCommentsForIssue / ListCommentsSinceForIssue / ListActivitiesForIssue (capped by argument). CLI - multica issue comment list drops --limit / --offset and the X-Total-Count reporting; --since is preserved for incremental polling. Frontend - Replace useInfiniteQuery with useQuery in useIssueTimeline; drop fetchOlder/Newer, jumpToLatest, isAtLatest, newEntriesBelowCount. - Remove timeline-cache helpers (mapAllEntries / filterAllEntries / prependToLatestPage) and the TimelinePage / TimelinePageParam types. - WS event handlers update the single flat-array cache directly. - Drop the orphan-reply rescue in issue-detail — every reply's parent is now guaranteed to be in the same array. - Strip the "show older / show newer / jump to latest" buttons and their i18n strings. Co-authored-by: multica-agent <github@multica.ai>