You can install B.O.R.I.S. in circuits with MMI components (+other MMI component changes) (#92002)

## About The Pull Request

This PR adds the ability to install a B.O.R.I.S. in a circuit that
contains an MMI component. These circuits can then be remotely connected
to by an AI by clicking on them or anything they are inside of. To
indicate that a circuit allows remote AI connection, an indicator is
given to the circuit and anything containing it.

Additionally:
- Refactors the MMI component to use `item_interaction`, since it was
pertinent.
- You cannot insert an MMI/B.O.R.I.S. into a locked circuit.
- You can no longer hotswap MMIs/B.O.R.I.S.es - you must manually eject
the inserted one.

Let me know what changelog labels I should use for the hotswap removal
and the prevention of insertion into locked circuits.

## Why It's Good For The Game

If you can put an MMI or posibrain in a circuit, why not allow an AI to
use it using a B.O.R.I.S.?

## Changelog

🆑
add: B.O.R.I.S.es can be installed inside of integrated circuits with
MMI components, allowing an AI to remotely interface with them the same
way an MMI or posibrain could.
refactor: The MMI component now uses item interaction behavior for
inserting MMIs/B.O.R.I.S.es.
/🆑

---------

Co-authored-by: Ghom <42542238+Ghommie@users.noreply.github.com>

code/modules/bitrunning/components/avatar_gear.dm

@@ -5,6 +5,8 @@
 	var/datum/callback/load_callback
 	/// Weakref to the human we are currently carried by
 	var/datum/weakref/tracked_human_ref
+	/// Weakref to the connect_containers component that tracks the human
+	var/datum/weakref/connect_ref
 
 /datum/component/loads_avatar_gear/Initialize(datum/callback/load_callback)
 	if(!isitem(parent))
@@ -18,14 +20,14 @@
 	var/static/list/loc_connections = list(
 		COMSIG_ATOM_ENTERING = PROC_REF(on_entered_loc),
 	)
-	AddComponent(/datum/component/connect_containers, parent, loc_connections)
+	connect_ref = WEAKREF(AddComponent(/datum/component/connect_containers, parent, loc_connections))
 
 /datum/component/loads_avatar_gear/UnregisterFromParent()
 	UnregisterSignal(parent, list(
 		COMSIG_ATOM_ENTERING,
 	))
 
-	qdel(GetComponent(/datum/component/connect_containers))
+	qdel(connect_ref)
 
 /datum/component/loads_avatar_gear/Destroy(force)
 	load_callback = null