Find Skills

When users ask "how do I do X" or "can you do Y", this routes them to the skills ecosystem instead of leaving you fumbling with general answers. It searches skills.sh using `npx skills find`, presents matching skills with install commands, and can add them directly with the `-g -y` flags. Covers the gap between what Claude knows generally and what specialized skills exist for React performance, PR reviews, changelog generation, whatever. The search categorization is solid (web dev, testing, DevOps, docs), and it handles the "nothing found" case gracefully by falling back to direct help. Basically turns "I don't know but let me search" into an actual workflow instead of an awkward pause.