P0: Add onSettled: invalidateQueries to 10 mutations that had onMutate
optimistic updates but no server confirmation. With staleTime: Infinity,
missing onSettled means cache could permanently drift from server state.
Mutations fixed:
- useDeleteIssue, useBatchDeleteIssues (issue list)
- useUpdateComment, useDeleteComment, useToggleCommentReaction (timeline)
- useToggleIssueReaction (reactions)
- useToggleIssueSubscriber (subscribers)
- useMarkInboxRead, useArchiveInbox, useMarkAllInboxRead (inbox)
P2: Change refetchOnReconnect from false to true as safety net
for HTTP reconnection before WS reconnection.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
99dad49052