Let's you have custom looking explorer/seva suit for mining (#5430)

## About The Pull Request
Adds new option for suit voucher which you can use on clothing of your
choice to make it equivalent to either SEVA or explorer suit if you are
feeling fancy. This won't make something like winter jacket protect your
full body obviously and you can't use it on stuff that already have
armor, it will only protect the parts the clothing is usually covering
and you can only get it from round start suit vouchers so you can't
cheese this with who knows what. If you choose to upgrade to explorer
suit you will be able to attach goliath plates just like with regular
explorer suit and if you upgraded your outfit and it's covering full
body to SEVA you will be ash storm proof
## Why It's Good For The Game
Yay, more customization
## Proof Of Testing
<details>
<summary>Screenshots/Videos</summary>
using the suit voucher<br>
<img width="296" height="370" alt="redeeming"
src="https://github.com/user-attachments/assets/0cfccd8b-a9e0-4846-b036-28aaac308e54"
/>

the new item in question<br>
<img width="564" height="149" alt="description"
src="https://github.com/user-attachments/assets/63a627f1-3883-4aad-8664-0a3080c88565"
/>

actually using it<br>
<img width="539" height="313" alt="usage"
src="https://github.com/user-attachments/assets/4a137d3c-5f75-41d2-b10e-277b004367ac"
/>


</details>

## Changelog
🆑
add: Added custom explorer/SEVA suit modification kit for mining suit
vouchers
/🆑

modular_zubbers/code/modules/mining/equipment/diy_mining_suit.dm

@@ -0,0 +1,71 @@
+/obj/item/miningsuitupgradekit
+	name = "DIY explorer suit kit"
+	desc = "A kit containing necessary parts to turn your hat and jacket of your choice into a mining suit. Note: Uncovered limbs will remain unprotected"
+	icon = 'icons/obj/mining.dmi'
+	icon_state = "retool_kit"
+	var/helmet_uses = 1
+	var/exosuit_uses = 1
+	var/seva_kit = FALSE
+
+/obj/item/miningsuitupgradekit/interact_with_atom(atom/interacting_with, mob/living/user, list/modifiers)
+	var/obj/item/clothing/upgraded_item = interacting_with
+
+	if(!istype(upgraded_item))
+		return ITEM_INTERACT_BLOCKING
+	if(!istype(upgraded_item, /obj/item/clothing/suit) && !istype(upgraded_item, /obj/item/clothing/head))
+		to_chat(user, span_warning("This kit will only work for head and suit slot clothing!"))
+		return ITEM_INTERACT_BLOCKING
+	if(istype(upgraded_item, /obj/item/clothing/suit) && exosuit_uses <= 0)
+		to_chat(user, span_warning("Suit part already used!"))
+		return ITEM_INTERACT_BLOCKING
+	if(istype(upgraded_item, /obj/item/clothing/head) && helmet_uses <= 0)
+		to_chat(user, span_warning("Helmet part already used!"))
+		return ITEM_INTERACT_BLOCKING
+	if(upgraded_item.get_armor_rating(MELEE) > 0)
+		to_chat(user, span_warning("This clothing is already armored and can't be modified!"))
+		return ITEM_INTERACT_BLOCKING
+
+	if(istype(upgraded_item, /obj/item/clothing/suit))
+		var/obj/item/clothing/suit/upgraded_suit = upgraded_item
+		upgraded_suit.allowed = GLOB.mining_suit_allowed
+		upgraded_suit.flags_inv = NONE
+		exosuit_uses--
+
+	if(istype(upgraded_item, /obj/item/clothing/head))
+		helmet_uses--
+
+	if(!seva_kit)
+		upgraded_item.AddComponent(/datum/component/armor_plate)
+
+	if(seva_kit)
+		upgraded_item.clothing_traits = list(TRAIT_ASHSTORM_IMMUNE)
+
+	upgraded_item.set_armor(seva_kit ? /datum/armor/hooded_seva : /datum/armor/hooded_explorer)
+	upgraded_item.min_cold_protection_temperature = FIRE_SUIT_MIN_TEMP_PROTECT
+	upgraded_item.max_heat_protection_temperature = SPACE_SUIT_MAX_TEMP_PROTECT
+	upgraded_item.resistance_flags |= FIRE_PROOF
+
+	upgraded_item.name = "[seva_kit ? "SEVA" : "reinforced"] [upgraded_item.name]"
+
+	balloon_alert(user, "[initial(upgraded_item.name)] upgraded!")
+
+	if(helmet_uses <= 0 && exosuit_uses <= 0)
+		qdel(src)
+	return ITEM_INTERACT_SUCCESS
+
+/obj/item/miningsuitupgradekit/click_alt(mob/user)
+	if(!exosuit_uses || !helmet_uses)
+		return CLICK_ACTION_BLOCKING
+	seva_kit = !seva_kit
+	name = "DIY [seva_kit ? "SEVA" : "explorer"] suit kit"
+	balloon_alert(user, "mode changed!")
+	return CLICK_ACTION_SUCCESS
+
+/obj/item/miningsuitupgradekit/examine(mob/user)
+	. = ..()
+	if(helmet_uses)
+		. += "It can be used to upgrade [helmet_uses] more hat[(helmet_uses > 1) ? "s" : ""]"
+	if(exosuit_uses)
+		. += "It can be used to upgrade [exosuit_uses] more suit[(exosuit_uses > 1) ? "s" : ""]"
+	if(exosuit_uses && helmet_uses)
+		. += "You can alt-click this kit to change it into [(seva_kit) ? "explorer suit" : "SEVA"] kit"

modular_zubbers/code/modules/mining/equipment/voucher_sets.dm

@@ -80,3 +80,12 @@
 	set_items = list(
 		/obj/item/clothing/suit/toggle/jacket/zubber/bomber/mining,
 	)
+
+/datum/voucher_set/mining_suit/diy
+	name = "DIY Mining Suit"
+	description = "Do-it-yourself custom mining suit. Includes specialized kit to turn your outfit into custom explorer/SEVA suit."
+	icon = 'icons/obj/mining.dmi'
+	icon_state = "retool_kit"
+	set_items = list(
+		/obj/item/miningsuitupgradekit,
+	)

tgstation.dme

@@ -9611,6 +9611,7 @@
 #include "modular_zubbers\code\modules\mapping\ss13_construct\areas.dm"
 #include "modular_zubbers\code\modules\mining\abandoned_crates.dm"
 #include "modular_zubbers\code\modules\mining\shelters.dm"
+#include "modular_zubbers\code\modules\mining\equipment\diy_mining_suit.dm"
 #include "modular_zubbers\code\modules\mining\equipment\order_mining.dm"
 #include "modular_zubbers\code\modules\mining\equipment\seva_suit.dm"
 #include "modular_zubbers\code\modules\mining\equipment\voucher_sets.dm"