gauge wave P1a: publish heat/power/weapon attributes + radar zoom

The gauge-databinding-map workflow found most cockpit gauges resolve NULL
because the reconstructed subsystems publish only a fraction of the attributes
the config binds.  First publishing batch (attribute tables are read-only static
data; ids kept a dense prefix from each parent's NextAttributeID):

- HeatSink table dense-append: DegradationTemperature/FailureTemperature (the
  condenser temp-bar warn/max endpoints -- were NULL, so the two-part bars could
  not scale), NormalizedPressure/DegradationPressure/CoolantMassLeakRate, and the
  HeatSink link.  Condenser/Reservoir inherit this -> all 6 condenser temp bars
  now resolve current/warn/max (verified: BT_GAUGE_ATTR_LOG all OK).
- PoweredSubsystem::GetAttributeIndex() (new) publishes InputVoltage->voltageSource
  -- the cluster power-branch gate (the power-lamp/generator-voltage/state-lamp
  sub-branch is skipped when it resolves NULL).  Flows to Sensor/Myomers/weapons.
- MechWeapon::GetAttributeIndex() (new) publishes OutputVoltage/PercentDone->
  rechargeLevel; Emitter/PPC/ProjectileWeapon/MissileLauncher/GaussRifle DefaultData
  re-pointed at it (they carried an EMPTY default-constructed index -> resolved
  NOTHING).  Verified: the ER MED LASER / PPC / STREAK weapon clusters now render
  live recharge dials (were blank TEMP/STATUS).
- Mech::SetTargetRange un-stubbed (radarRange = range) -> the radar map scale +
  overlay range readout track the mapper's zoom (was frozen at 1000).
- GAUGREND ParseAttribute: env-gated per-binding resolution trace (BT_GAUGE_ATTR_LOG)
  -- durable diagnostic infra for the wave.

Verified DBASE+dev gauges: no startup/gauge-construction crash (dense chain intact),
combat un-regressed (TARGET DESTROYED), clusters build with InputVoltage resolving.
Remaining config-binding NULLs: HeatSink/AmbientTemperature (aggregate bank, P3) +
Searchlight/LightOn (P1b).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

game/reconstructed/mechweap.cpp

@@ -81,13 +81,34 @@ Derivation
 	);
 
 Receiver::MessageHandlerSet	MechWeapon::MessageHandlers;
-Simulation::AttributeIndexSet	MechWeapon::AttributeIndex;
+Simulation::AttributeIndexSet	MechWeapon::AttributeIndex;	// legacy empty member (superseded by GetAttributeIndex)
+
+// gauge data-binding wave: OutputVoltage/PercentDone -> rechargeLevel (1.0 ==
+// ready; ComputeOutputVoltage/the charge state machine drive it, so both animate
+// as the weapon recharges).  Chained to PoweredSubsystem's dense index.
+const MechWeapon::IndexEntry
+	MechWeapon::AttributePointers[]=
+{
+	ATTRIBUTE_ENTRY(MechWeapon, OutputVoltage, rechargeLevel),	// @0x320 (charge/ready level)
+	ATTRIBUTE_ENTRY(MechWeapon, PercentDone,   rechargeLevel)	// @0x320 (recharge dial fraction)
+};
+
+MechWeapon::AttributeIndexSet&
+	MechWeapon::GetAttributeIndex()
+{
+	static MechWeapon::AttributeIndexSet attributeIndex(
+		ELEMENTS(MechWeapon::AttributePointers),
+		MechWeapon::AttributePointers,
+		PoweredSubsystem::GetAttributeIndex()
+	);
+	return attributeIndex;
+}
 
 MechWeapon::SharedData
 	MechWeapon::DefaultData(
 		&MechWeapon::ClassDerivations,
 		MechWeapon::MessageHandlers,
-		MechWeapon::AttributeIndex,
+		MechWeapon::GetAttributeIndex(),
 		MechWeapon::StateCount
 	);