Correct package metadata and documentation accuracy:
- Set license to Apache-2.0 in package.json, admin/package.json and both
lockfiles (project has been Apache-2.0 since #197; metadata still said ISC)
- Replace the placeholder root package.json description with a real one
- Remove the dead README "Troubleshooting Guide" link (TROUBLESHOOTING.md
does not exist; FAQ.md already has its own entry)
- Fix README typos: "harware", "LLM's", "of of", "uses cases"
Carries forward the worthwhile fixes from #849 by @aqilaziz, minus the
version bump that conflicted with the current release line.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>