fix caddy file 0.134

docker/caddy/conf/Caddyfile

@@ -8,14 +8,16 @@ https://ru.homyk.space {
         reverse_proxy backend:{$PORT}
     }
 
-    handle /main/* {
+    handle_path /main/* {
         root * /srv/main
         file_server
     }
 
-    handle / {
+    handle_path {
         root * /srv/auth
-        file_server
+        file_server {
+            index login.html
+        }
     }
 
     log {