Update AI Hosts: OpenRouter (#86)

Source/non_ip/ai.conf

@@ -96,3 +96,7 @@ DOMAIN-SUFFIX,groq.com
 
 # >> JetBrains AI
 DOMAIN,api.jetbrains.ai
+
+# >> OpenRouter AI - Unified Relay
+# see https://github.com/SukkaW/Surge/pull/86 for reason that only root domain get proxied
+DOMAIN,openrouter.ai