feat(web): onboarding ends at the first workbench; no workspace-level worker (CL-9635) - #1054

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/cache@v4, actions/checkout@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

apps/sidecar/src/workflow-substrate-factory.ts:222:5: There is no cause error attached to this new thrown error.

apps/sidecar/src/workflow-substrate-factory.ts:196:5: There is no cause error attached to this new thrown error.

apps/sidecar/src/sidecar-materialization-config.ts:36:5: There is no cause error attached to this new thrown error.