Chat:
- Add OpenRouter as primary AI provider with multiple models
- Update chat service with new model configurations
- Add model seed data for Llama, DeepSeek, Mistral, Claude, GPT-4o
Picture:
- Integrate @mana-core/nestjs-integration for credit system
- Implement freemium model (3 free generations, then 10 credits)
- Migrate storage to @manacore/shared-storage
- Add comprehensive project documentation
