Durable URLs for features (stations, platforms, deployments, etc.)

OSCAR-nextgen should follow Web-architecture principles - particularly that the things (objects) it manages are addressable by URL. These URLs should be durable so that people can link to those objects (i.e., hypermedia). See [W3C/OGC Spatial Data on the Web Best Practice: Web Principles for Spatial Data](https://www.w3.org/TR/sdw-bp/#bp-webprinciples).

Start by reading the issue and the linked W3C/OGC Spatial Data on the Web best-practice section on web principles. Define how managed objects such as stations, platforms, and deployments should receive durable URLs; done means those objects are addressable and linkable through stable URLs.

Written by the indexing model from the issue text.