- Replace basic CLI chat with Bubble Tea-based TUI featuring viewport, textarea, colored history, and streaming replies.
- Add StreamSilent method to client for TUI integration without live printing.
- Introduce model flag for chat command.
- Update dependencies to include charmbracelet libraries.
- Introduce config.Load() to handle centralized configuration loading in TOML format
- Add --model flag support across commands with alias resolution via GetModel
- Update root command to load config in PersistentPreRun
- Remove redundant config init and set defaults for model and temperature
