Update documentation to recommend `npm install -g moltbot@beta` instead
of `moltbot@latest` since the @latest tag on npm currently points to
v0.1.0 which lacks the `bin` field and CLI binary.
This is a workaround until the npm @latest tag is updated to point to
the current beta/stable releases.
Affected docs:
- README.md
- docs/index.md
- docs/install/index.md
- docs/install/installer.md
- docs/start/getting-started.md
- docs/help/faq.md
Fixes#3787
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
