Log trauma gain and loss (#83519)

code/datums/brain_damage/brain_trauma.dm

@@ -22,6 +22,7 @@
 	// Handles our references with our brain
 	brain?.remove_trauma_from_traumas(src)
 	if(owner)
+		log_game("[key_name_and_tag(owner)] has lost the following brain trauma: [type]")
 		on_lose()
 		owner = null
 	return ..()

code/modules/mob/living/brain/brain_item.dm

@@ -508,6 +508,7 @@
 		actual_trauma.owner = owner
 		SEND_SIGNAL(owner, COMSIG_CARBON_GAIN_TRAUMA, trauma)
 		actual_trauma.on_gain()
+		log_game("[key_name_and_tag(owner)] has gained the following brain trauma: [trauma.type]")
 	if(resilience)
 		actual_trauma.resilience = resilience
 	SSblackbox.record_feedback("tally", "traumas", 1, actual_trauma.type)