Updates slackpath-2 and slackpath-4 to use POST /projects/{id}/components/batch
for adding multiple Go components atomically in a single git commit. This
prevents the go.work race condition where individual commits reference modules
that don't exist yet.
Also adds on_error: continue for infrastructure provisioning steps that may
already exist from skeleton (redis, postgres).
Verified:
- slackpath-1: ✅ Complete (wait_build polled 5 times, detected success)
- slackpath-2: ✅ Complete (wait_build polled 111 times, detected success)
- slackpath-3: ✅ Infrastructure passed (worker capacity limited testing)
- slackpath-4: ✅ Infrastructure passed (worker capacity limited testing)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>