Convert mouse and rat to basic mobs (#70728)

* Converts mice and rats to basic mobs

* Update paths

* Fixes

* Tweaks

* .

* Use helpers

* Unit test

* Correct the targeting

* Fixes the unit test?

* Fixes the unit test

* Docs

* update the path script with pr id

* Faction check tweak

* Review

* AHH

code/modules/assembly/mousetrap.dm

@@ -136,16 +136,17 @@
 			if(affecting.receive_damage(1, 0))
 				victim.update_damage_overlays()
 	else if(ismouse(target))
-		var/mob/living/simple_animal/mouse/M = target
+		var/mob/living/basic/mouse/splatted = target
 		visible_message(span_boldannounce("SPLAT!"))
-		M.splat()
-	else if(israt(target))
-		var/mob/living/simple_animal/hostile/rat/ratt = target
-		visible_message(span_boldannounce("Clink!"))
-		ratt.apply_damage(5) //Not lethal, but just enought to make a mark.
-		ratt.Stun(1 SECONDS)
+		if(splatted.health <= 5)
+			splatted.splat()
+		else
+			splatted.adjust_health(5)
+			splatted.Stun(1 SECONDS)
+
 	else if(isregalrat(target))
 		visible_message(span_boldannounce("Skreeeee!")) //He's simply too large to be affected by a tiny mouse trap.
+
 	playsound(src, 'sound/effects/snap.ogg', 50, TRUE)
 	pulse(FALSE)
 
@@ -199,7 +200,7 @@
 						INVOKE_ASYNC(src, .proc/triggered, H)
 						H.visible_message(span_warning("[H] accidentally steps on [src]."), \
 							span_warning("You accidentally step on [src]"))
-				else if(ismouse(MM) || israt(MM) || isregalrat(MM))
+				else if(ismouse(MM) || isregalrat(MM))
 					INVOKE_ASYNC(src, .proc/triggered, MM)
 		else if(AM.density) // For mousetrap grenades, set off by anything heavy
 			INVOKE_ASYNC(src, .proc/triggered, AM)