Demo Milestone 1 to the community #230

Description

Present the split-view + autocomplete milestone to the community for feedback, as done for the MVP.

Motivation

The MVP gathered community feedback via a demo. Milestone 1 is the first post-MVP release with real authoring value and warrants the same — driving adoption and surfacing follow-up issues

Proposed Implementation

No response

Definition of Done

• Implementation: Fully implemented according to the Serverless Workflow spec.
• Unit Tests: Comprehensive unit tests are included and passing.
• Integration Tests: Verified within the monorepo and target environments (Web/VS Code).
• Documentation: Updated README.md, ADRs, or official docs.
• Performance: No significant regression in editor responsiveness.
• Accessibility: UI changes comply with accessibility standards.