Basic login an authorize in backend

USEntryCoach.Server/appsettings.Development.json

@@ -4,5 +4,11 @@
       "Default": "Information",
       "Microsoft.AspNetCore": "Warning"
     }
+  },
+  "API": {
+    "OpenAI": "Please set the key in secrets.json! NEVER HERE!!!"
+  },
+  "Authentication": {
+    "Secret": "Please provide a GUID (without dashes) as secret."
   }
 }