- [x] String union default do not use enum value reference - [x] Model types generated in `TypeSpec.Service` namespace not properly referenced in controllers - [x] Model types in `TypeSpec.Service` namespace improperly reference model types from Azure.Ai.Agents namespace reference: https://github.com/Azure/azure-rest-api-specs/tree/feature/azure-ai-agents-v1/specification/ai/Azure.AI.Agents