Camera eyes have been lightly refactored (among other things...) (#87805)

## About The Pull Request

* A generic /mob/eye/camera type has been made, containing everything
needed to interface with a cameranet
* /mob/eye/ai_eye has been refactored into a generic /mob/eye/camera
instance
* Advanced cameras no longer inherit from AI eyes, splitting off
behaviour
* Camera code has been somewhat cleaned up
* Probably some more stuff I'm forgetting right now

## Big man Southport:

![image](https://github.com/user-attachments/assets/de6e6ff0-ca99-4636-bdec-5e0b2d6b8037)

## Changelog

🆑
code: made /proc/getviewsize() pure

refactor: mob/eye/ai_eye has been restructured, now inheriting from a
generic mob/eye/camera type
refactor: advanced cameras and their subtypes are now
mob/eye/camera/remote subtypes
code: the cameranet no longer expects the user to be an AI eye
code: remote camera eyes have had their initialization streamlined
code: remote cameras handle assigning and unassigning users by
themselves now
code: remote cameras now use weakrefs instead of hard referencing owners
and origins
code: also the sentient disease is_define was removed (we don't have
those anymore)
fix: AI eyes no longer assign real names to themselves, fixing their
orbit name
/🆑

---------

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

code/game/objects/items/devices/multitool.dm

@@ -204,7 +204,7 @@
 	var/turf/our_turf = get_turf(src)
 	detect_state = PROXIMITY_NONE
 
-	for(var/mob/eye/ai_eye/AI_eye as anything in GLOB.aiEyes)
+	for(var/mob/eye/camera/ai/AI_eye as anything in GLOB.camera_eyes)
 		if(!AI_eye.ai_detector_visible)
 			continue
 
@@ -253,7 +253,7 @@
 // copied from camera chunks but we are doing a really big edge case here though
 /obj/item/multitool/ai_detect/proc/surrounding_chunks(turf/epicenter)
 	. = list()
-	var/static_range = /mob/eye/ai_eye::static_visibility_range
+	var/static_range = /mob/eye/camera/ai::static_visibility_range
 	var/x1 = max(1, epicenter.x - static_range)
 	var/y1 = max(1, epicenter.y - static_range)
 	var/x2 = min(world.maxx, epicenter.x + static_range)