fix: docker build + npm publish for v2.2.0 release

- Fix better-sqlite3 import in doctor.ts (use dynamic string to bypass tsc)
- Remove broken `npm install -g npm@latest` from release workflow (Node 22 already has OIDC support)

chore(main): release 2.1.0 (#12)

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

feat: profClaw v2.0.0 - initial public beta

Smart, lightweight AI agent engine with 35 providers,
22 chat channels, 72 tools, and 3 deployment modes.
Runs on anything from a Raspberry Pi to a production VPS.