Audio Phase 1 (AUDIO_FIDELITY F3/F4/F10/F15/F18/F20 + KB): the quick wins

F3 distance: alDistanceModel(AL_NONE); restored the commented authored
  distance multiply in Dynamic3D::CalculateSourceVolumeScale, added the same
  override to Static3D, dropped the (now inert) AL_MAX_DISTANCE writes.  Far
  battle audio follows the authored knee/rolloff curve again, and the volume
  cull / voice steal / ducking chains are distance-aware.
F4 volume law: AL_GAIN = volume_scale^2 at all 3 per-frame sites (Direct/
  Dyn3D/Static3D) -- the GM CC7 squared curve; linear was ~+6 dB at mids.
F10 doppler: alDopplerFactor(0) (AL's model ran wrong constants + sign-
  inverted velocity: approaching sources pitched DOWN); the AUTHORED
  dopplerCents (AUDIO.INI range/speed-of-sound model, decomp-proven consumer
  part_008.c:7466) now adds into the Dynamic3D pitch chain.
F15 ConfigureActivePress: published at the MechSubsystem BASE (binary id 2,
  descriptor @0x50de5c -> +0x110); renamed the misnamed vitalSubsystemIndex
  member (the weapon ConfigureMappables handler already drives it 0/-1).
  Removed the invented Sensor/Myomers duplicates and RESTORED their byte-
  exact layouts (0x328/0x358 allocs + asserts).  MechWeapon's pinned-id pad
  absorbed the +1 chain shift -- which matches the binary's own numbering.
F18 cook-off warning: AmmoBin FireCountdownStarted -> the existing
  cookOffArmed @0x18C (binary table @0x512600); the countdown klaxon can fire.
F20 zoom blip: L4MechControlsMapper publishes TargetRangeExponent -> the live
  @0x1a4 zoom member (own table chained to MechControlsMapper).
KB: replaced the bogus divisionParameters+0x10 rate read with
  SystemClock::GetTicksPerSecond() (FUN_0044e19c is GetFrameRate -- original
  audio frames were CLOCK TICKS).

Regression (35s drive+fire): stable; ConfigureActivePress binds real on all 9
subsystems (idle -1, zero pad redirects); FireCountdownStarted +
TargetRangeExponent bind live members; attrnull 53 -> 41; chirp still dead;
footfalls still fire (gain now correctly squared).

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

game/reconstructed/sensor.cpp

@@ -117,8 +117,7 @@ const Sensor::IndexEntry
 {
 	ATTRIBUTE_ENTRY(Sensor, RadarPercent, radarPercent),	// @0x31C (map capabilities ratio)
 	ATTRIBUTE_ENTRY(Sensor, SelfTest,     selfTest),
-	ATTRIBUTE_ENTRY(Sensor, BadVoltage,   badVoltage),
-	ATTRIBUTE_ENTRY(Sensor, ConfigureActivePress, configureActivePress)	// audio configure-ticker gate
+	ATTRIBUTE_ENTRY(Sensor, BadVoltage,   badVoltage)
 };
 
 Sensor::AttributeIndexSet
@@ -163,7 +162,6 @@ Sensor::Sensor(
 	radarPercent = RadarBaseline;	// @0x31C  = 1.0f
 	selfTest     = False;			// @0x320  = 0
 	badVoltage   = False;			// @0x324  = 0
-	configureActivePress = -1;		// APPENDED: no configure button held (audio ticker OFF)
 
 	// this[0x28] |= 0x8  -- flag "has an active per-frame Performance".
 	SetHasPerformanceFlag();		// param_1[10] |= 8
@@ -412,7 +410,7 @@ struct SensorLayoutCheck
 	static_assert(offsetof(Sensor, radarPercent) == 0x31C, "Sensor::radarPercent @0x31C (attr 0x12)");
 	static_assert(offsetof(Sensor, selfTest)     == 0x320, "Sensor::selfTest @0x320");
 	static_assert(offsetof(Sensor, badVoltage)   == 0x324, "Sensor::badVoltage @0x324");
-	static_assert(sizeof(Sensor)                 == 0x32C, "sizeof(Sensor) 0x328 binary + 4 appended (alloc bumped in CreateSensorSubsystem)");
+	static_assert(sizeof(Sensor)                 == 0x328, "sizeof(Sensor) 0x328 (factory alloc, byte-exact)");
 };
 
 
@@ -426,7 +424,6 @@ struct SensorLayoutCheck
 //===========================================================================//
 Subsystem *CreateSensorSubsystem(Mech *owner, int id, void *seg)
 {
-	// 0x32C = the 0x328 binary object + 4 appended (configureActivePress; sizeof lock bumped too)
-	return (Subsystem *) new (Memory::Allocate(0x32C))
+	return (Subsystem *) new (Memory::Allocate(0x328))
 		Sensor(owner, id, (Sensor::SubsystemResource *)seg);
 }