Authentication

[tjementum]

### Tasks
- [ ] https://github.com/platformplatform/PlatformPlatform/issues/315
- [ ] https://github.com/platformplatform/PlatformPlatform/issues/553
- [ ] https://github.com/platformplatform/PlatformPlatform/issues/554
- [ ] https://github.com/platformplatform/PlatformPlatform/issues/555
- [ ] https://github.com/platformplatform/PlatformPlatform/issues/320
- [ ] https://github.com/platformplatform/PlatformPlatform/issues/556
- [ ] https://github.com/platformplatform/PlatformPlatform/issues/294

https://www.youtube.com/@duendesoftware

Json Web Token RFC: https://www.rfc-editor.org/rfc/rfc8725

See an example here: https://github.com/jasontaylordev/CleanArchitecture https://www.youtube.com/watch?v=dK4Yb6-LxAk

Introducing the Identity API endpoints in .NET8: https://andrewlock.net/exploring-the-dotnet-8-preview-introducing-the-identity-api-endpoints/

[raix]

https://learn.microsoft.com/en-us/entra/external-id/customers/overview-customers-ciam