Decide the model, provider, and deployment architecture

[glowkeeper]

Define an architecture that preserves institutional control while allowing models and providers to evolve.

Deliverables

• Provider abstraction and model-selection boundaries
• Prompt and policy versioning approach
• Deployment, tenancy, security, and observability options
• Decision record covering build-versus-buy trade-offs

Done when

The architecture supports traceability, privacy, portability, and educator control.