Add JWT auth, token service & Neutrino endpoint

API/Contracts/Neutrino/Enums/AuthenticationResultCode.cs

@@ -0,0 +1,25 @@
+namespace API.Contracts.Neutrino.Enums;
+
+public enum AuthenticationResultCode
+{
+    /// <summary>
+    /// Indicates that authentication is incomplete and only the associated data is returned.
+    /// </summary>
+    /// <remarks>This value is typically used when launching the game with no account, in which data to authenticate is not provided.</remarks>
+    AuthenticationIncomplete,
+
+    /// <summary>
+    /// Indicates that authentication was successful.
+    /// </summary>
+    AuthenticationSuccessful,
+
+    /// <summary>
+    /// Indicates that authentication failed due to incorrect credentials.
+    /// </summary>
+    AuthenticationFailedWrongCredentials,
+
+    /// <summary>
+    /// Indicates that the parameters provided to the operation are invalid.
+    /// </summary>
+    InvalidParameters
+}