Provide documentation for API endpoints

[grega]

Would love to see Swagger-style documentation available, as per: https://staging-my.raspberrypi.org/api/v1/documentation/

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This issue is stale because it has been open for 90 days with no activity. Remove stale label or comment or this will be closed in 7 days.

[github-actions]

This issue was closed because it has been open for more than 90 days with no activity.

[grega]

Documentation of the API is definitely still something we need to do.

[github-actions]

This issue is stale because it has been open for 90 days with no activity. Remove stale label or comment or this will be closed in 7 days.