Thomas Trompette 2c49c4169c feat(workflow): remove async workflowVersion core dual-write listener (#23374)
## What

Removes `WorkflowVersionCoreDualWriteListener` (and its now-empty
module), replacing the last async best-effort core writes for workflow
versions with synchronous mirrors. Adds one missing synchronous funnel
so nothing is left uncovered.

## Why

After #23356, the listener's `handleRestored` / `handleDeleted` /
`handleDestroyed` handlers are redundant with the synchronous lifecycle
mirror, so the async path (which can silently drift on failure) can go.

While removing it I found one path the listener was **not** redundant
on: **direct `deleteOneWorkflowVersion` (discard draft)** is an allowed
operation (discard a DRAFT version that isn't the only version, via the
`DISCARD_DRAFT_WORKFLOW` command) and had **no** synchronous post-hook.
The async listener was the sole thing deleting its core row. Removing
the listener without a replacement would have drifted on every draft
discard.

So this PR also adds a `workflowVersion.deleteOne` post-hook that
mirrors the deletion to core.

## Coverage after this change

| version lifecycle path | synchronous coverage |
| --- | --- |
| `deleteOneWorkflowVersion` (discard draft) | **new**
`workflowVersion.deleteOne` post-hook |
| delete via workflow cascade | `handleWorkflowSubEntities` ->
`deleteCoreVersionsByWorkflowIds` (#23356) |
| restore via workflow cascade | `handleWorkflowSubEntities` ->
`recreateCoreVersionsByWorkflowId` (#23356) |
| destroy via workflow | `workflow.destroy*` post-hooks (#23356) |
| `deleteMany` / `destroyOne|Many` / `restoreOne|Many` version | blocked
by pre-hooks ("Method not allowed") |

## Notes

- The new post-hook re-fetches the version (`withDeleted`) to resolve
its `coreWorkflowVersionId`, because the delete post-hook payload only
carries the columns the client selected (the delete `RETURNING` set is
built from `selectedFieldsResult.select`), so `coreWorkflowVersionId` is
not reliably present.
- `deleteCoreVersionsByWorkspaceVersionIds` deletes precisely by
`coreWorkflowVersionId` (not by `workflowId`), so discarding one draft
does not touch the core rows of the workflow's other versions.
- The workflow-side `WorkflowCoreSyncModule` listener is intentionally
left in place (separate migration track).

## Verification

- `nx typecheck twenty-server` green
- `nx lint:diff-with-main twenty-server` green
- Added integration test `workflow-version-discard-draft-core-mirror`:
activate v1, create a draft, discard it, assert only the draft's core
row is removed and the active version's core row remains.
- Live run on a dev instance still pending.

## Merge gate

Per the migration plan, removing the async backstop should land only
after the drift cron reports zero drift over a soak period.

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2026-07-27 15:52:15 +00:00
2026-06-11 11:02:28 +02:00

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