[MDB IGNORE] isolates signpost teleporting into new component /datum/component/houlihan_teleport (#93810)

## About The Pull Request

Isolates signpost teleport code into a component
`/datum/component/houlihan_teleport`, which takes a question argument
and a list of zlevels.
Removes `/obj/structure/no_effect_signpost` and turns existing mapped-in
instances into `/obj/structure/signpost`s
Adds/documents/fixes some attack signals that were added to the element

## Jebediah
<img width="100%" alt="image"
src="https://github.com/user-attachments/assets/b227e5bd-1c93-41b3-b87f-1a559cf81112"
/>


## Changelog

🆑
refactor: Signposts have had their code improved internally. Please make
an issue if a signpost that should teleport you no longer can.
/🆑

tools/UpdatePaths/Scripts/93810_refactor_signposts.txt

@@ -0,0 +1 @@
+/obj/structure/no_effect_signpost/@SUBTYPES : /obj/structure/signpost/@SUBTYPES{@OLD}