Bugfixes (#21741)

Fixes https://github.com/Aurorastation/Aurora.3/issues/20990
Fixes https://github.com/Aurorastation/Aurora.3/issues/21730
Fixes https://github.com/Aurorastation/Aurora.3/issues/21735

changes:
- bugfix: "Mechatronic fabricator no longer needs to be manually synced
on round start to populate all available parts."
  - bugfix: "Freebooters can now pilot their own subshuttle."
- bugfix: "Greimorian eggs toxin can no longer infest synthetic limbs."
- qol: "Vintage rifle mechanical feedback text has been clarified for
ease of use (before it wouldn't tell you how to rack it properly)."
- rscdel: "Removes pause/unpause functionality from earbuds due to
general bugginess in favor of play/stop."

code/modules/clothing/ears/earphones.dm

@@ -4,8 +4,7 @@
 	Current Features:
 	- All earphones have a cartridge slot. Cartridges can be inserted by clicking an earphone, and removed via an eject_music_cartridge() verb.
 	- Inserting a cartridge will load a playlist containing /datum/tracks, where track names and sound files are loaded.
-	- Shift+Clicking will Start/Stop a playlist, creating or deleting an active sound_player token.
-	- Alt+Clicking with Pause/Unpause the current track, preserving an active sound_player token.
+	- Alt+Clicking will Start/Stop a playlist, creating or deleting an active sound_player token.
 	- attack_self will eject the music cartridge. Ejecting a music cartridge also terminates the sound_player token.
 	- Volume controllable via verb.
 
@@ -56,8 +55,7 @@
 /obj/item/clothing/ears/earphones/mechanics_hints(mob/user, distance, is_adjacent)
 	. += ..()
 	. += "Full controls can be found in the Verbs list, under <b>Object</b> tab -> <b>Earphones</b>."
-	. += "ALT-click \the [src] to quickly Pause/Resume the current track."
-	. += "SHIFT-click \the [src] to quickly Play/Stop the current playlist (this will reset the current track to the start.)"
+	. += "ALT-click \the [src] to quickly Play/Stop the current track."
 	. += "Use \the [src] while in-hand to eject the cartridge."
 
 /obj/item/clothing/ears/earphones/Destroy()
@@ -264,6 +262,8 @@
 	else
 		soundplayer_token.SetVolume(volume)
 
+/// Pain in the ass. This paused all sound in the game; when resuming, all queued sounds (bags, doors, etc.) would play at once. Not a useful enough feature to burn time on.
+/*
 /obj/item/clothing/ears/earphones/verb/pause_unpause()
 	set name = "Pause/Unpause"
 	set category = "Object.Earphones"
@@ -300,6 +300,7 @@
 				update_clothing_icon()
 		else
 			play_stop() //No soundtoken? They probably meant to use the other verb instead.
+*/
 
 /obj/item/clothing/ears/earphones/verb/next_song_verb()
 	set name = "Next Song"
@@ -335,9 +336,6 @@
 */
 
 /obj/item/clothing/ears/earphones/AltClick(mob/user)
-	pause_unpause()
-
-/obj/item/clothing/ears/earphones/ShiftClick(mob/user)
 	play_stop()
 
 /*

code/modules/projectiles/guns/projectile/rifle.dm

@@ -244,29 +244,24 @@
 /obj/item/gun/projectile/shotgun/pump/rifle/vintage/unique_action(mob/living/user as mob)
 	if(wielded)
 		pump(user)
-		return
-	else
-		if(open_bolt && has_clip)
-			if(has_clip.stored_ammo.len > 0)
-				load_ammo(has_clip, user)
-				src.ClearOverlays()
-				if(!has_clip.stored_ammo.len)
-					AddOverlays("springfield-clip-empty")
-				else if(has_clip.stored_ammo.len <= 3)
-					AddOverlays("springfield-clip-half")
-				else
-					AddOverlays("springfield-clip-full")
+	if(open_bolt && has_clip)
+		if(has_clip.stored_ammo.len > 0)
+			load_ammo(has_clip, user)
+			src.ClearOverlays()
+			if(!has_clip.stored_ammo.len)
+				AddOverlays("springfield-clip-empty")
+			else if(has_clip.stored_ammo.len <= 3)
+				AddOverlays("springfield-clip-half")
 			else
-				to_chat(user, SPAN_WARNING("There is no ammo in \the [has_clip.name]!"))
-		else if(!open_bolt)
-			to_chat(user, SPAN_WARNING("The bolt on \the [src.name] is closed!"))
+				AddOverlays("springfield-clip-full")
 		else
-			to_chat(user, SPAN_WARNING("There is no clip in \the [src.name]!"))
+			to_chat(user, SPAN_WARNING("There is no ammo in \the [has_clip.name]!"))
+	else if(!open_bolt)
+		to_chat(user, SPAN_WARNING("The bolt on \the [src.name] is closed! You'll have to grip it with both hands to rack it."))
+	else
+		to_chat(user, SPAN_WARNING("There is no clip in \the [src.name]!"))
 
 /obj/item/gun/projectile/shotgun/pump/rifle/vintage/pump(mob/M as mob)
-	if(!wielded)
-		to_chat(M, SPAN_WARNING("You cannot work \the [src]'s bolt without gripping it with both hands!"))
-		return
 	if(!open_bolt)
 		open_bolt = 1
 		icon_state = "springfield-openbolt"
@@ -281,7 +276,6 @@
 		has_clip = null
 		ClearOverlays()
 
-
 	if(chambered)//We have a shell in the chamber
 		chambered.forceMove(get_turf(src))//Eject casing
 		chambered = null

code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Toxins.dm

@@ -1063,7 +1063,9 @@
 
 		if(!victim.internal_organs_by_name[BP_GREIMORIAN_EGGCLUSTER] && prob(20))
 			var/obj/item/organ/external/affected = pick(victim.organs)
-			// Give the victim an extra chance to NOT get an eggsac in their head; reroll.
+			if(BP_IS_ROBOTIC(affected))
+				return
+			// Give the victim an extra chance to NOT get an eggsac in their head; reroll. Ditto mechanical limbs.
 			if(affected == BP_HEAD)
 				affected = pick(victim.organs)
 			var/obj/item/organ/internal/parasite/greimorian_eggcluster/infest = new()