Pilot v2: Core implementation + battery telemetry

Major updates:
- Complete Rust rewrite (pilot-v2/) with working MQTT client
- Fixed MQTT event loop deadlock (background task pattern)
- Battery telemetry for Linux (auto-detected via /sys/class/power_supply)
- Home Assistant auto-discovery for all sensors and switches
- Comprehensive documentation (AVANCEMENT.md, CLAUDE.md, roadmap)
- Docker test environment with Mosquitto broker
- Helper scripts for development and testing

Features working:
✅ MQTT connectivity with LWT
✅ YAML configuration with validation
✅ Telemetry: CPU, memory, IP, battery (Linux)
✅ Commands: shutdown, reboot, sleep, screen (dry-run tested)
✅ HA discovery and integration
✅ Allowlist and cooldown protection

Ready for testing on real hardware.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

README.md

@@ -93,3 +93,78 @@ lancer l'installation du service:
 ```
 sudo ./install.sh
 ```
+
+## PILOT v2 (Rust) ✅ FUNCTIONAL
+
+**Status**: Core implementation complete and tested. Ready for feature development.
+
+### Quick Start
+
+```bash
+# Start MQTT broker (Docker required)
+./scripts/start_mqtt_broker.sh
+
+# Run pilot v2
+./scripts/run_pilot.sh
+
+# In another terminal, monitor messages
+./scripts/monitor_mqtt.sh
+
+# Send a test command
+docker exec pilot-mosquitto mosquitto_pub -t "pilot/pilot-device/cmd/screen/set" -m "OFF"
+```
+
+### Documentation
+
+- **[Implementation Status](docs/implementation_status.md)** - What's implemented and what's missing
+- **[Development Roadmap](docs/development_roadmap.md)** - Planned features and priorities
+- **[Testing Results](docs/testing_results.md)** - End-to-end test validation
+- **[Architecture](docs/architecture_v2.md)** - MQTT contract and module structure
+- **[Deployment Guide](docs/deploiement.md)** - Systemd service setup
+- **[Usage Guide](docs/utilisation.md)** - How to use pilot v2
+
+### Configuration
+
+Example config: `config/config.example.yaml`
+
+Key settings:
+- MQTT broker connection
+- Telemetry interval (default: 10s)
+- Commands allowlist
+- Dry-run mode (safety during development)
+- Platform backends (power and screen control)
+
+### Development
+
+```bash
+# Run tests
+cd pilot-v2 && cargo test
+
+# Build release
+cd pilot-v2 && cargo build --release
+
+# Check code
+cd pilot-v2 && cargo check
+```
+
+### Features (v2)
+
+**Working**:
+- ✅ MQTT connectivity with LWT
+- ✅ YAML configuration
+- ✅ Telemetry (CPU, memory, IP, battery*)
+- ✅ Power commands (shutdown, reboot, sleep)
+- ✅ Screen control (on/off)
+- ✅ Home Assistant auto-discovery
+- ✅ Command allowlist and cooldown
+- ✅ Dry-run mode for safe testing
+
+_* Battery telemetry: Linux only, auto-detected_
+
+**Planned** (see roadmap):
+- CPU temperature
+- Battery support for Windows
+- GPU telemetry
+- Windows backend implementation
+- TLS/SSL support
+- Integration tests