fix main script usage of ctx

main.lua

@@ -8,8 +8,12 @@ local CONFIG_PATH = ".;/etc/aproxy"
 -- local config = loadConfig()
 
 local ctx = require('ctx')
-ctx.setWantedScripts({
+
+ctx:setWantedScripts({
     ['scripts.webfinger_allowlist'] = {accounts = {"example@example.com"}}
 })
+ctx:loadChain()
 
-return ctx:onRequest
+return function()
+    ctx:onRequest()
+end