- Create new `pkm` directory for Personal Knowledge Management skills
- Move conversation-summary, knowledge-gardener, and research-vault from `personal` to `pkm`
- Add new crit skill for brainstorming with the CRIT framework
- Update skill descriptions for clarity and consistency
- Add audio-product-dsp, grilling, and research-engineering to model-invoked listings
- Update skill paths across README files to reflect new directory structure
gitadmin