TaskEntity.Number is a global, monotonically increasing, never-reused
integer (displayed as #123), allocated from AppSettingsEntity.NextTaskNumber
via a single UPDATE...RETURNING statement rather than MAX(number)+1, which
would reissue a deleted task's number. Both insert paths (TaskRepository.
AddAsync and CreateChildAsync) route through the new TaskNumberAllocator,
with a bounded retry on a unique-index collision. One migration adds the
columns, backfills existing rows in creation order, and creates the unique
index afterwards. Data-layer only; MCP/UI wiring is later slices.
- CancelAsync now signals the running Claude process of the cancelled task and
its cascaded children via the new RunCancellationRegistry (queue + override
slots register their CTS there) instead of only flipping DB state.
- external MCP review_task 'approve' now mirrors the hub's ApproveReview:
unit merge for parents, ApproveAndMergeAsync for childless tasks, optional
targetBranch; ReviewTaskResult carries mergeStatus/conflicts.
Confirmed via docs/open.md (Korrektheits-Review 2026-06-09): TaskStateService.CancelAsync
only flipped the target row to Cancelled - a Queued/Running child kept going and could
still commit into its worktree after the parent was gone.
CancelAsync now also cancels the task's own non-terminal children (Idle/Queued/Running/
WaitingForReview/WaitingForChildren) in the same pass, clearing BlockedByTaskId so no
successor is left wedged, and broadcasts TaskUpdated for each.
Add WaitingForChildren to the CancelAsync guard so a parent waiting on its
children can be cancelled.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
A finalized planning parent now joins the unified parent lifecycle:
WaitingForChildren while its child chain runs (or WaitingForReview directly
if it has no children), advancing to review like an improvement parent.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Collapse TryCompleteParentAsync (planning -> Done) and
TryAdvanceImprovementParentAsync (improvement -> WaitingForReview) into one
TryAdvanceParentAsync that surfaces any WaitingForChildren parent for review
once all children are terminal. Planning parents no longer auto-complete.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>