Create telemetryharbor.yaml

[Adrelien]

Summary

Add Telemetry Harbor webhook template to enable seamless integration between The Things Network and Telemetry Harbor IoT platform for LoRaWAN device data ingestion.

Changes

• Added telemetryharbor.yaml webhook template file
• Template supports uplink message forwarding to Telemetry Harbor API endpoints
• Configured X-API-Key header authentication
• Added user-configurable fields for endpoint URL and API key
• Optimized field mask for flat JSON numeric data format (temperature, humidity, battery, etc.)
• Included service description, logo, and documentation URLs

Notes for Reviewers

Implementation Details:

• The base URL field (harbor-endpoint) expects the complete endpoint URL including the harbor ID and /ttn path, as Telemetry Harbor uses dynamic per-project endpoints (e.g., https://telemetryharbor.com/api/v2/{harbor-id}/ttn)
• Only uplink-message path is enabled as Telemetry Harbor currently focuses on uplink data ingestion for time-series analytics
• The template uses an empty path ('') for uplink messages since the complete endpoint is provided in the base URL
• Field mask is optimized for decoded payload and essential metadata to support Telemetry Harbor's flat JSON structure

Testing:
Please verify that:

• Logo URL renders correctly from GitHub raw content
• Documentation URL is accessible
• The X-API-Key header format is correct

Checklist

• Scope: The referenced issue is addressed, there are no unrelated changes.
• Compatibility: The changes are backwards compatible, they don't break existing deployments.
• Testing: The changes are tested with Telemetry Harbor platform.
• Documentation: Documentation URL points to Telemetry Harbor's TTN integration guide.

[CLAassistant]

All committers have signed the CLA.