Same as M:AVMTradeReporter.Controllers.SignalRTestController.AuthTest but forces authorization at the action level (redundant given the class-level [Authorize], kept explicit for clarity/testing).

Request

• Base URL: https://api.testnet.scan.biatec.io (the document declares no server; this is the origin it was published from)
• URL: https://api.testnet.scan.biatec.io/api/signalr/auth-test-authorized
• Auth: API key in header Authorization