Spike: Define local integration testing strategy

[lornakelly]

Description

Investigate how to locally consume the editor npm package from the Quarkus Flow Dev UI during development. Based on the findings, please update placeholder ticket and estimate #125

Motivation

Enable efficient local development and testing of the editor within a real integration environment.

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.