[bug] Linear workflow statuses do not resync after rename or create #5216

Describe the bug

Linear workflow status definitions are synced into Superset during the Linear initial sync, but later Linear workflow changes are not reflected in Superset.

Observed behavior:

• Linear status was renamed from In Progress to In impl.
• A new Linear status In plan was added.
• Linear now has Todo, In plan, In impl, In Review in the active workflow.
• Superset still returns/shows the stale status set: Todo, In Progress, In Review; In plan is missing.

This is not only a desktop cache issue. task.statuses.list against the Superset API returns the stale status rows, so the source task_statuses data is not being refreshed after the Linear workflow changes.

Code pointers

• apps/api/src/app/api/integrations/linear/jobs/initial-sync/route.ts:73 calls syncWorkflowStates() as part of performInitialSync().
• apps/api/src/app/api/integrations/linear/jobs/initial-sync/syncWorkflowStates.ts:44-64 has the correct upsert logic for Linear workflow states by (organizationId, externalProvider, externalId).
• apps/api/src/app/api/integrations/linear/webhook/route.ts:126-131 only processes Issue webhook payloads.
• apps/api/src/app/api/integrations/linear/webhook/route.ts:169-176 explicitly skips issue updates whose state is not already in task_statuses and has a TODO to trigger workflow-state sync.

Expected behavior

Superset should refresh Linear-backed task_statuses when Linear workflow states are created, renamed, reordered, recolored, or when an issue webhook references a previously unseen Linear state.

At minimum, there should be a manual resync path that runs syncWorkflowStates() for the connected organization without requiring disconnect/reconnect.

Actual behavior

Superset keeps the stale status rows from initial sync. New statuses are unavailable in the task UI/API, renamed statuses keep their old names, and issue webhooks for unseen states can be skipped.

Suggested fix

• Handle Linear workflow state webhook events if Linear sends them for the app.
• On an Issue create/update webhook, if issue.state.id is missing from task_statuses, run syncWorkflowStates() for the connection and retry the status lookup before skipping.
• Add a manual Linear resync endpoint/mutation for workflow states so users can repair stale status definitions without reconnecting the integration.

Notes

A local desktop cache hotfix can make the current machine display the correct names temporarily, but it does not repair the Superset API source of truth.