- Changed default model from `ollama:llama3.2:3b` to `ollama:gemma3:4b`
- Updated model token limits and added new models:
- Added `gemma3:4b` with vision support
- Removed `phi4:14b` and added `phi4-reasoning:14b`
- Updated token limits for existing models
- Added new AI-related roles:
- `commit-message.md`
- `email-answer.md`
- `emoji-commit-message.md`
- `git-branch.md`
- `improve-prompt.md`
- `improve-writing.md`
- `linkedin-answer.md`
- Enhanced `to-emoji.md` and added `to-emojies.md`
- Added `ai` alias for `aichat` in fish config
- Updated NixOS configuration to load new models
