Herarchy

Implement hierarchical multi-model conversation architecture with HF as authoritative layer

Implement coordinated multi-model AI system with HF endpoint monitoring

Fix session management serialization and update Ollama URL

Fix critical deployment issues: Redis connection, Ollama URL sanitization, Hugging Face provider, config validation, and enhanced error handling

Implement developer review recommendations: enhanced session management, improved error handling, and dependency updates

Add session management, weather service, and TTS modules

Initialize project structure for AI Life Coach