Discord linking

[DisposableCrewmember42]

User-facing

• Click button in Main Menu / Escape Menu to open Menu depending on linking state
  • Unlinked? Start the process
    
  • Linked? Display state and allow unlinking.
    
• Discord: /link <auth_code> to proceed with linking
  • Optionally: If invoked without arguments, open one of those fancy Discord interaction dialogs to prompt for the auth code.

Linking Implementation

• A new API endpoint is added to the SS14 Admin API at Content.Server/Administration/ServerApi.cs
  • POST /discord/actions/link

    {
      "auth_code": "A1B2C3",
      "discord_id": 12345678901234567890
    }

1. Upon linking request, SS14 server generates auth code and holds in in memory with corresponding player GUID until invalidation.
2. The bot sends an authenticated request to the above endpoint upon /link invocation.
3. The server receives the request and checks the code. If code is valid, write to database.

[DisposableCrewmember42]

The bot should communicate patreon role changes by sending requests to

POST /discord/actions/patreon_update

{
  "user_id": 12345678901234567890,
  "patreon_tier": 3, // set to 0 if no longer donor
}

or something like that