task: Break down accepted ADR into estimated tickets

[lornakelly]

Description

Once the ADR is accepted, decompose the agreed work into appropriately scoped tickets, estimate, and prioritise them. Add a spike first where a direction needs technical validation before it's estimable. Output: a groomed, estimated backlog ready for execution.

Motivation

Turn the agreed direction into actionable, sized work so the team can plan and pull tickets with confidence.

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.