get-skill@1.3.10

• find-skills is now find-a-skill. SkillMD's skill-finder shared its name with Vercel's widely installed find-skills, and both go into the same ~/.agents/skills folder, so for anyone who already had Vercel's the offer after an install could only fail. It is now skillmd/find-a-skill, the old skillmd/find-skills address redirects to it, and an earlier install under the old name counts as already added.
• A failed follow-up install says why. When the find-a-skill offer can't install, the message gives the reason (for example a folder already in the way) instead of "try later", along with the command to add it yourself.