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/wiremod/dcs_components/component_boris_circuit_container.dm

@@ -0,0 +1,82 @@
+/datum/component/boris_circuit_container
+	dupe_mode = COMPONENT_DUPE_SOURCES
+	var/list/obj/item/circuit_component/mmi/mmi_components
+	var/datum/weakref/indicator_weakref
+
+/datum/component/boris_circuit_container/Initialize()
+	. = ..()
+	if(!ismovable(parent))
+		return COMPONENT_INCOMPATIBLE
+
+/datum/component/boris_circuit_container/Destroy(force)
+	mmi_components = null
+	return ..()
+
+/datum/component/boris_circuit_container/RegisterWithParent()
+	. = ..()
+	RegisterSignal(parent, COMSIG_ATOM_ATTACK_AI, PROC_REF(on_ai_click))
+	var/atom/parent_atom = parent
+	var/image/indicator_image = image('icons/mob/huds/hud.dmi', parent_atom, "hudtracking", pixel_x = 8)
+	SET_PLANE_EXPLICIT(indicator_image, ABOVE_LIGHTING_PLANE, parent_atom)
+	indicator_weakref = WEAKREF(parent_atom.add_alt_appearance(
+		/datum/atom_hud/alternate_appearance/basic/ais,
+		"boris_circuit_container_[REF(src)]",
+		indicator_image,
+		NONE
+	))
+
+/datum/component/boris_circuit_container/UnregisterFromParent()
+	QDEL_NULL(indicator_weakref)
+	return ..()
+
+/datum/component/boris_circuit_container/on_source_add(source)
+	. = ..()
+	var/obj/item/circuit_component/mmi/source_comp = locate(source)
+	if(!istype(source_comp))
+		return COMPONENT_INCOMPATIBLE
+	LAZYADD(mmi_components, source)
+
+/datum/component/boris_circuit_container/on_source_remove(source)
+	var/obj/item/circuit_component/mmi/source_comp = locate(source)
+	if(source_comp)
+		LAZYREMOVE(mmi_components, source_comp)
+	return ..()
+
+/datum/component/boris_circuit_container/proc/on_ai_click(atom/movable/source, mob/user)
+	SIGNAL_HANDLER
+	if(!length(mmi_components))
+		return
+	if(HAS_TRAIT(user, TRAIT_CONNECTED_TO_CIRCUIT))
+		return
+	if(length(mmi_components) == 1)
+		var/obj/item/circuit_component/mmi/mmi_comp = mmi_components[1]
+		if(mmi_comp.parent.shell == source)
+			INVOKE_ASYNC(mmi_comp, TYPE_PROC_REF(/obj/item/circuit_component/mmi, confirm_ai_connect), user, source)
+			return COMPONENT_CANCEL_ATTACK_CHAIN
+	INVOKE_ASYNC(src, PROC_REF(select_circuit), source, user)
+	return COMPONENT_CANCEL_ATTACK_CHAIN
+
+/datum/component/boris_circuit_container/proc/select_circuit(atom/movable/source, mob/user)
+	var/list/choices = list()
+	var/list/choice_map = list()
+	var/source_in_choices = FALSE
+	for(var/obj/item/circuit_component/mmi/mmi_component as anything in mmi_components)
+		if(mmi_component.occupant)
+			continue
+		var/atom/movable/shell = mmi_component.parent.shell
+		choices[shell] = shell
+		choice_map[shell] = mmi_component
+		if(shell == source)
+			source_in_choices = TRUE
+	if(!source_in_choices)
+		choices[source] = source
+	var/atom/movable/choice = show_radial_menu(user, source, choices, user_space = TRUE)
+	if(QDELETED(choice) || QDELETED(user) || !user.can_interact_with(choice))
+		return
+	if(choice == source && !source_in_choices)
+		choice.attack_ai(user)
+		return
+	var/obj/item/circuit_component/mmi/choice_comp = choice_map[choice]
+	if(QDELETED(choice_comp) || choice_comp.parent?.shell != choice || !choice_comp.boris)
+		return
+	choice_comp.do_ai_connect(user, choice)