docs(ha): add cross-industry application examples to home-assistant.md
Add an 'Applications — what people actually do with this' section
above References, grouping real-world uses by category so prospective
users can pick what matches their space without having to invent
their own automations from the entity catalog.
Categories (7 tables, ~70 example use cases):
- Personal & home (goodnight routine, wake-up, meeting mode,
bathroom fan, forgotten stove, pet-only at home, sleep tracking,
toddler safety, pre-arrival lighting)
- Healthcare & assisted living (fall detection + escalation,
elderly inactivity anomaly, privacy-mode care, sleep apnea,
post-surgery, dementia wandering, bathroom timeout)
- Security & safety (auto-arm, intrusion, through-wall verification,
silent distress, garage / outbuilding, child safety zones)
- Commercial buildings & retail (office occupancy, demand-controlled
HVAC, meeting room truth, retail dwell + heat-map, queue length,
cleaning verification, lone-worker safety)
- Industrial & infrastructure (control rooms, restricted zones,
equipment rooms, hazardous area, construction after-hours,
maritime quarters)
- Education & public spaces (classroom occupancy, library, lecture
hall attendance, restroom signage, gym capacity, transit platforms)
- Energy & sustainability (per-room lighting, smart thermostat
zoning, vampire-load cut-off, solar / battery dispatch tuning,
cold-chain monitoring)
- Research, prototyping & developer use
Plus a 'Combining entities — recipe patterns' section that captures
5 reusable automation patterns (negative+duration trip wire, two-state
agreement guard, threshold+cooldown, calendar-vs-reality, privacy-mode
semantic-only) so users can build their own without reading the entity
reference cover-to-cover.
Plus a 'What about regulated environments?' subsection that names
the HIPAA / GDPR / CCPA properties of --privacy-mode + semantic-only
publishing — the architectural win for healthcare / education /
shared-housing deployments.
Co-Authored-By: claude-flow <ruv@ruv.net>
db6df747b9