fix: carry signals as NetworkValue, not NetworkToggle

v1.0.0 loaded cleanly and did nothing in game. Every vanilla use of
NetworkToggle and NetworkToggleReceiver -- all three of them -- sets
IncludeInPhysical = false. They are blueprint stat-display plumbing and
carry no signal on a real ship, so the receivers always read off, the
vent gate stayed open, and radiators behaved exactly as in vanilla.

Broadcast 1/0 through NetworkValue and threshold it back into a toggle
on the receiving side. That is what the thermal amplification pump uses
to drive physical behaviour, and vanilla never sets IncludeInPhysical on
it anywhere.

Also repoint the radiator's power indicator at the gate, so an auto-idled
radiator is visibly idle instead of looking identical to a working one.

Tests grow a guard against the blueprint-only types, plus a check that
re-verifies that premise against the installed game data so the guard
cannot go stale, and a name-collision check against vanilla components.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011oLWY1G6S8U35bi2FxVWni

mod.rules

@@ -8,14 +8,15 @@
 // Data/ships/priorities.rules defines no ordering between them.
 //
 // The patches below add components to four vanilla parts and then repoint the
-// radiator's three heat-dissipating components from the raw PowerToggle to the
-// AutoPowerToggle gate defined in components/radiator_auto.rules.
+// radiator's heat dissipation, steam plume, dissipation readout and power
+// indicator from the raw PowerToggle to the AutoPowerToggle gate defined in
+// components/radiator_auto.rules.
 //
 // Nothing here changes a stat or a number. It only changes when radiators run.
 
 ID = ganter.auto_radiator
 Name = "Auto Radiator"
-Version = 1.0.0
+Version = 1.1.0
 CompatibleGameVersions = ["0.30.4c", "0.30.4"]
 ModifiesGameplay = true
 Author = "Tobias Ganter"
@@ -105,4 +106,16 @@ Actions
 			Toggle = AutoPowerToggle
 		}
 	}
+
+	// The "powered off" indicator icon, so an idling radiator is visibly idle
+	// rather than looking identical to a working one. Without this the only cue
+	// that the mod is doing anything is the absence of the steam plume.
+	{
+		Action = Overrides
+		OverrideIn = "<ships/terran/radiator/radiator.rules>/Part/Components/Indicators/Indicators/0"
+		Overrides
+		{
+			Toggle = AutoPowerToggle
+		}
+	}
 ]