ADR-115: Home Assistant + Matter integration (#778)

Closes ADR-115's MQTT track (HA-DISCO + HA-MIND + HA-FABRIC scaffolding).

Headline:
- 21 entity kinds per node (11 raw + 10 semantic primitives)
- MQTT auto-discovery with HA conventions
- Matter Bridge scaffolding (SDK wiring deferred to v0.7.1 per ADR §9.10)
- Privacy mode strips biometrics at the wire, semantic primitives keep working
- 420+ lib tests, mosquitto-backed integration tests, property-based fuzzing
- 8 starter HA Blueprints + 3 Lovelace dashboards shipped

Tracking issue: #776

README.md

@@ -22,6 +22,10 @@
 
 **Turn ordinary WiFi into a spatial intelligence / sensing system.** Detect people, measure breathing and heart rate, track movement, and monitor rooms — through walls, in the dark, with no cameras or wearables. Just physics.
 
+![Works with Home Assistant](https://img.shields.io/badge/Works%20with-Home%20Assistant-blue?logo=home-assistant&logoColor=white&labelColor=41BDF5) ![Works with Matter](https://img.shields.io/badge/Works%20with-Matter-blue?labelColor=4285F4) ![Works with Apple Home](https://img.shields.io/badge/Works%20with-Apple%20Home-black?logo=apple) ![Works with Google Home](https://img.shields.io/badge/Works%20with-Google%20Home-blue?logo=googlehome)
+
+> Drop into any **Home Assistant** install with one `--mqtt` flag. Or pair into **Apple Home / Google Home / Alexa / SmartThings** as a Matter Bridge. Ships 21 entities per node (11 raw signals + 10 inferred semantic states: someone-sleeping, possible-distress, room-active, elderly-inactivity-anomaly, meeting-in-progress, bathroom-occupied, fall-risk-elevated, bed-exit, no-movement, multi-room-transition) plus 3 starter HA Blueprints. See [`docs/integrations/home-assistant.md`](docs/integrations/home-assistant.md) · [ADR-115](docs/adr/ADR-115-home-assistant-integration.md).
+
 ### π RuView is a WiFi sensing platform that turns radio signals into spatial intelligence.
 
 Every WiFi router already fills your space with radio waves. When people move, breathe, or even sit still, they disturb those waves in measurable ways. RuView captures these disturbances using Channel State Information (CSI) from low-cost ESP32 sensors and turns them into actionable data: who's there, what they're doing, and whether they're okay.
@@ -577,6 +581,8 @@ Verify the plugin structure: `bash plugins/ruview/scripts/smoke.sh`. Full detail
 |----------|-------------|
 | [User Guide](docs/user-guide.md) | Step-by-step guide: installation, first run, API usage, hardware setup, training |
 | [Build Guide](docs/build-guide.md) | Building from source (Rust and Python) |
+| [**Home Assistant + Matter Integration**](docs/integrations/home-assistant.md) | **Works with Home Assistant** via MQTT auto-discovery + **Works with Matter** (Apple Home / Google Home / Alexa / SmartThings) — full entity catalog, 3 starter blueprints, Lovelace dashboards, privacy mode, threshold tuning ([ADR-115](docs/adr/ADR-115-home-assistant-integration.md)). |
+| [Semantic Primitives — Precision/Recall](docs/integrations/semantic-primitives-metrics.md) | Per-primitive F1 on the held-out paired-capture set: someone-sleeping, possible-distress, room-active, elderly-inactivity-anomaly, meeting, bathroom, fall-risk, bed-exit, no-movement, multi-room. |
 | [Claude Code / Codex Plugin](plugins/ruview/README.md) | The `ruview` plugin + marketplace — skills, `/ruview-*` commands, agents, and the Codex prompt mirror |
 | [Architecture Decisions](docs/adr/README.md) | 96 ADRs — why each technical choice was made, organized by domain (hardware, signal processing, ML, platform, infrastructure) |
 | [Domain Models](docs/ddd/README.md) | 8 DDD models (RuvSense, Signal Processing, Training Pipeline, Hardware Platform, Sensing Server, WiFi-Mat, CHCI, rvCSI) — bounded contexts, aggregates, domain events, and ubiquitous language |