Add comprehensive documentation for v0.2.0
- README.md: full project overview with features, install extras,
CLI reference, web UI routes, config table, architecture diagrams,
security model, /health API, and development setup
- CLAUDE.md: updated for monorepo — reflects inlined subpackages,
new import patterns, pip extras, and added modules
- docs/deployment.md: practical RPi deployment guide covering
hardware, OS setup, security hardening (swap/coredumps/firewall),
installation, systemd service, config reference, fieldkit setup,
key management, operational security limitations, troubleshooting
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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