The weather_data_id path parameter is the workspace-scoped integer index.
Returns 404 if the weather data record does not exist or does not belong to the current workspace.
Returns {"deleted": true} on success.
If this weather data record is currently linked to a location, the location’s weather reference will become orphaned. Verify no active locations or energy models depend on this record before deleting.
See GET /weatherdata to list existing records before deleting.