- Updated LLMClient interface to support model-specific generation and model listing. - Integrated model store and validator into the command application for managing AI models. - Implemented commands for setting, getting, and listing active AI models in Discord. - Enhanced AI query handling to utilize the selected model and return model information in responses. - Added caching mechanism for model validation to improve performance. - Introduced gRPC methods for listing available AI models in the ai-gateway. - Updated protobuf definitions to include model-related fields and messages. - Added tests for model store and validator functionalities.