Split AuthService/Server

some refactoring
fix some stuff
add http context accessor
configure metrics as well
commit 713d054ccb965f7adb8eafa6e3fb52853a1e6dd2 (partial, Docker only)

MareSynchronosServer/MareSynchronosAuthService/Authentication/SecretKeyAuthReply.cs

@@ -0,0 +1,3 @@
+namespace MareSynchronosAuthService.Authentication;
+
+public record SecretKeyAuthReply(bool Success, string Uid, string Alias, bool TempBan, bool Permaban);