Workflows foundation
- Added Workflows as a first-class workspace navigation item with a read-only automation landing surface covering inbound webhooks, operator buttons, message events, schedules, template sends, routing, and run history.
- Linked the existing inbound webhook configurator forward to Workflows while keeping the current settings path backward-compatible.
- Advanced the release train to v0.18.1 for the BORD-828 PR1 slice.