Introduce new `agent` command that scans .go files in the project, generates an AI-driven plan for changes based on user instruction, and applies edits with previews and backups. Includes integration with Grok client for planning and content generation.
Update existing files with timestamp comments as part of the agent's editing demonstration. Add agentCmd to root command.
- 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
- Switch chat command from Bubble Tea TUI to basic CLI with bufio.
- Hardcode Grok model in commands, remove Viper config.
- Stream responses directly in client, remove channel-based streaming.
- Add safe previews/backups in edit, simplify prompts across tools.
- Update git helper and trim unused deps in go.mod.
