Lists workflow runs for the authenticated organization with optional full-text
search, filtering, sorting, and offset pagination.

Search matches workflow name, step input/output, errors, console logs, and run
ID (when the search value is a UUID). Filtering, search, sort, and pagination
are performed server-side via the workflow run search index.

Results are always scoped to the authenticated organization. OAuth callers
require the workflows:read scope (and matching workspace permission). API key
callers are authorized by organization membership.

Results default to newest-first by started_at. Use sort=started_at for
oldest-first.