/token should provide pretty-printing

app.rb

@@ -381,12 +381,15 @@ get "/pid", provides: "json" do
 end
 
 get "/token", provides: "json" do
+  pretty = params.key? :pretty
+
   exp = Time.now.to_i + SECONDS_PER_MINUTE * 2
   payload = {name: "anonymous", exp: exp, jti: Random.uuid}
   expires_at = Time.at(exp).to_datetime
   token = JWT.encode payload, config.jwt_secret.unwrap, "HS256"
   x = {token: token, expires_at: expires_at}
 
+  jsonify x, pretty:
 end
 
 get "/token/validate" do