Wires Panel and Signaler Expansion (#22846)

Fleshes out wire panel skill behavior and signaler management.

Electrical Engineering 4 was very OP for revealing all wire labels of
all machines, and it was super fun while it lasted.

Wire panels now have associated skills with their use, and increased
skill ranks will increase the proportion of wires (chosen at random)
that are easily recognizable on sight for certain types of wiring
panels.
**Professional:** 75% revealed
**Trained:** 50% revealed
**Familiar:** 30% revealed
_(note: having both Electrical and Mechanical engineering at least
Trained gives you that baseline 30%, reflecting how your knowledge can
probably translate to decent guesswork.)_

The following wire panels are affected:
**Electrical Engineering:**
- APCs
- Cameras
- IFF Beacons
- Radios
- Smartfridges
- SMES Units

**Mechanical Engineering**
- Airlocks
- Disposal Units
- Fabricators
- Vending Machines

**Atmospherics Systems**
- Air Alarms

**Reactor Systems**
- Particle Accelerator Control Boxes (lol)

**Robotics**
- Hardsuits
- Suit Storage Units (sharing the love is all)
- Robots
- Tag Scanners

**Xenobiology**
- Stasis Cages

Also, I made it possible to blow out all the lights in an APC's area by
snipping the power regulator cable and then pulsing the lights wire.
Great for signalers.

Speaking of signalers, new app deployed to all Engineering, Research,
and Robotics personal modular computers:
<img width="816" height="722" alt="Screenshot 2026-07-14 144049"
src="https://github.com/user-attachments/assets/3d588712-ebfd-47ac-b699-7cdac2c04907"
/>

Self-explanatory. Please only use corporate-provided software for
behavior within your contract regulations.

code/modules/modular_computers/hardware/network_card.dm

@@ -13,6 +13,8 @@ GLOBAL_VAR_INIT(ntnet_card_uid, 1)
 	var/long_range = FALSE
 	var/ethernet = FALSE // Hard-wired, therefore always on, ignores NTNet wireless checks.
 	var/obj/item/integrated_signaler/signal/sradio = FALSE // integrated signaler - not present on basic model.
+	var/obj/item/integrated_signaler/signal/secondary_sradio = FALSE // second receiver for NTOS signaler software.
+	var/obj/item/integrated_signaler/signal/transmit_sradio = FALSE // transmitter for NTOS signaler software.
 	malfunction_probability = 1
 
 /obj/item/computer_hardware/network_card/diagnostics(mob/user)
@@ -41,7 +43,7 @@ GLOBAL_VAR_INIT(ntnet_card_uid, 1)
 
 /obj/item/computer_hardware/network_card/signaler/Initialize()
 	. = ..()
-	sradio = new /obj/item/integrated_signaler/signal(src)
+	initialize_signaler_radios()
 
 /obj/item/computer_hardware/network_card/advanced
 	name = "advanced NTNet network card"
@@ -54,7 +56,7 @@ GLOBAL_VAR_INIT(ntnet_card_uid, 1)
 
 /obj/item/computer_hardware/network_card/advanced/Initialize()
 	. = ..()
-	sradio = new /obj/item/integrated_signaler/signal(src)
+	initialize_signaler_radios()
 
 /obj/item/computer_hardware/network_card/wired
 	name = "wired NTNet network card"
@@ -67,7 +69,46 @@ GLOBAL_VAR_INIT(ntnet_card_uid, 1)
 
 /obj/item/computer_hardware/network_card/wired/Initialize()
 	. = ..()
-	sradio = new /obj/item/integrated_signaler/signal(src)
+	initialize_signaler_radios()
+
+/obj/item/computer_hardware/network_card/proc/initialize_signaler_radios()
+	if(!sradio)
+		sradio = new /obj/item/integrated_signaler/signal/network_card(src)
+	sradio.set_listening(FALSE)
+	if(!secondary_sradio)
+		secondary_sradio = new /obj/item/integrated_signaler/signal/network_card(src)
+	secondary_sradio.set_listening(FALSE)
+	if(!transmit_sradio)
+		transmit_sradio = new /obj/item/integrated_signaler/signal/network_card(src)
+	transmit_sradio.set_listening(FALSE)
+
+/obj/item/computer_hardware/network_card/proc/get_signaler_radio(var/channel = 1)
+	if(channel == 0)
+		return transmit_sradio
+	if(channel == 2)
+		return secondary_sradio
+	return sradio
+
+/obj/item/computer_hardware/network_card/proc/receive_signaler_signal(var/obj/item/integrated_signaler/signal/receiver, var/datum/signal/signal)
+	if(!parent_computer || !parent_computer.enabled || !enabled || !check_functionality())
+		return FALSE
+
+	var/channel
+	if(receiver == sradio)
+		channel = 1
+	else if(receiver == secondary_sradio)
+		channel = 2
+	else
+		return FALSE
+
+	if(istype(parent_computer.active_program, /datum/computer_file/program/signaler))
+		var/datum/computer_file/program/signaler/active_signaler = parent_computer.active_program
+		active_signaler.receive_signal(channel, signal)
+
+	for(var/datum/computer_file/program/signaler/signaler_program in parent_computer.idle_threads)
+		signaler_program.receive_signal(channel, signal)
+
+	return TRUE
 
 // Returns a string identifier of this network card
 /obj/item/computer_hardware/network_card/proc/get_network_tag()
@@ -106,6 +147,10 @@ GLOBAL_VAR_INIT(ntnet_card_uid, 1)
 /obj/item/computer_hardware/network_card/Destroy()
 	if(sradio)
 		QDEL_NULL(sradio)
+	if(secondary_sradio)
+		QDEL_NULL(secondary_sradio)
+	if(transmit_sradio)
+		QDEL_NULL(transmit_sradio)
 	if(parent_computer?.network_card == src)
 		parent_computer.network_card = null
 	parent_computer = null