fix: point llms.txt AI Profile link to main domain

Author: tw93

public/llms.txt

@@ -20,4 +20,4 @@ Tw93 is a product engineer who builds open source developer tools (Pake, MiaoYan
 
 - GitHub: https://github.com/tw93
 - Blog: https://tw93.fun
-- AI Profile: https://yobi.tw93.fun/llms-full.txt
+- AI Profile: https://tw93.fun/llms-full.txt