switch all other services to struct tag based env config

accounts/pkg/command/server.go

@@ -26,12 +26,12 @@ func Server(cfg *config.Config) *cli.Command {
 				cfg.HTTP.Root = strings.TrimSuffix(cfg.HTTP.Root, "/")
 			}
 
-			cfg.Repo.Backend = strings.ToLower(cfg.Repo.Backend)
-
 			if err := ParseConfig(ctx, cfg); err != nil {
 				return err
 			}
 
+			cfg.Repo.Backend = strings.ToLower(cfg.Repo.Backend)
+
 			return nil
 		},
 		Action: func(c *cli.Context) error {