Add admin user, and an option to add a user admin on startup

internal/routes/appinfo.go

@@ -5,12 +5,24 @@ import (
 
 	"git.artlef.fr/bibliomane/internal/appcontext"
 	"git.artlef.fr/bibliomane/internal/dto"
+	"git.artlef.fr/bibliomane/internal/myvalidator"
 )
 
 func GetAppInfo(ac appcontext.AppContext) {
+	admin := false
+	_, userIsInContext := ac.C.Get("user")
+	if userIsInContext {
+		user, err := ac.GetAuthenticatedUser()
+		if err != nil {
+			myvalidator.ReturnErrorsAsJsonResponse(&ac, err)
+			return
+		}
+		admin = user.Admin
+	}
 	ac.C.JSON(http.StatusOK, dto.AppInfo{
 		RegistrationDisabled: ac.Config.DisableRegistration,
 		DemoMode:             ac.Config.DemoMode,
 		DemoUsername:         ac.Config.DemoUsername,
+		Admin:                admin,
 	})
 }