Gitea's workflow_dispatch endpoint returns 204 No Content with no Location
header. DispatchWorkflow required that header, so every successful dispatch
errored with "missing Location header" and never yielded a run ID — making
the tool unusable for CAD dispatch.
- DispatchWorkflow now returns error-only; 204 = success, no Location needed.
Body already carried ref+inputs; kept and covered by test.
- Tool snapshots the newest existing workflow_dispatch run before dispatch,
then polls ListWorkflowRuns after and returns the newest run with ID above
that baseline (avoids returning a stale prior run). Falls back to an honest
"dispatched, run not yet registered" result rather than failing.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>