Adds all-or-nothing git-revert support for multi-repo workspace tasks and wires it into the existing revert route/AI-undo/per-sha machinery.
- Add `resolveWorkspaceTaskRevertCommits` and `revertWorkspaceTask` to `packages/engine/src/task-revert.ts`, dry-run classifying every sub-repo first and only committing per-repo revert commits when every sub-repo is clean/already-reverted; any conflicting sub-repo rolls back every already-committed sub-repo.
- Extract shared `applyAndCommitRevert" apply/commit machinery (built on the existing `applyRevertNoCommit` primitive) so the workspace path reuses the same commit-message/trailer contract as the single-repo path.
- Add a defensive `isWorkspaceTask` guard to `performTaskRevert` so workspace tasks can never be silently reverted through the single-repo path.
- Wire `POST /api/tasks/:id/revert` (register-task-workflow-routes.ts) to dispatch workspace tasks to `revertWorkspaceTask`, preserving the existing `mode` (git/ai/auto) and AI-undo-fallback contract for workspace conflicts.
- Export the new workspace revert types/functions from `packages/engine/src/index.ts`.
- Add route-dispatch and real-git workspace revert test coverage; update docs and add a changeset.
Files changed:
.changeset/fn-7547-workspace-task-revert.md | 7 +
docs/task-management.md | 8 +-
packages/dashboard/src/__tests__/task-revert-route.test.ts | 102 +++++
packages/dashboard/src/routes/register-task-workflow-routes.ts | 76 +++-
packages/engine/src/__tests__/task-revert.workspace.real-git.test.ts | 272 +++++++++++++
packages/engine/src/index.ts | 6 +
packages/engine/src/task-revert.ts | 448 ++++++++++++++++++++-
7 files changed, 897 insertions(+), 22 deletions(-)
Fusion-Task-Id: FN-7547
Fusion-Task-Lineage: b1b5eeda-06fd-43c1-8163-74b62c77b000
Co-authored-by: Fusion (runfusion.ai) <noreply@runfusion.ai>
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