- Implement `grokkit testgen` for Go/Python/C/C++ files
- Add language-specific prompts and test file conventions
- Include backups, previews, auto-apply flag
- Update README with docs and examples
- Add unit tests for helper functions
- Mark todo as completed
- Update CI workflow runner from ubuntu-latest to ubuntu-gitea for auto-complete-todo.
- Move 3-new-feature-suggestions.md to completed/.
- Create queued TODOs for testgen, changelog, and profile features.
- Update README.md to reflect new todo/ directory structure with queued/ for pending items and completed/ for historical records.
- Rename docs/TODO.md to todo/completed/MODEL_ENFORCEMENT.md.
- Add example todo/queued/TODO_ITEM.md with initial TODO steps.
