Connect - Service Catalog and Service Definitions

**Goal**: Clearly define what services are available and how they can be consumed.

**Scope**
• Service descriptions
• Service dependencies
• Consumption models
• Eligibility criteria
etc.

The issue names no files, tests, or entry points. Start by clarifying where service information belongs and which services are in scope; done means documenting service descriptions, dependencies, consumption models, and eligibility criteria in an agreed format.

Written by the indexing model from the issue text.