Clarifications added:
- Storage: config/discovered_sensors.json with extended metadata
- ntfy: Optional notifications via curl with token auth
- CLI: sensorpajen approve-sensors (interactive only)
- Config reload: Every 15 minutes, no service restart needed
- Metadata: MAC, name, RSSI, timestamps, sample readings
- Ignored sensors: Stored with timestamp and optional reason
- Pre-filled comments with metadata for user to edit
