Fix 1 (Gitea #12): disasm-exact ProjectileWeaponSimulation @004bbd04 + the dirty-bit sweep

Replace the RivetGun-modeled ProjectileWeaponSimulation body with the fully
recovered binary machine (capstone disasm, every branch address-cited):

- gate 1 @4bbd36: simulationState@0x40==1 (destroyed) || heatAlarm==FailureHeat
  || owner disabled -> recoil=rechargeRate + alarm 7 (was: simulationFlags==1)
- gate 2 @4bbd71: bin alarm 2/3 or bin destroyed -> alarm 7 re-pinned per frame
- Loaded @4bbec2: DENIED shots (viewFireEnable off / no owner target) blip
  SetLevel(4);SetLevel(2) and STAY LOADED, no ammo pull (the old FireWeapon
  early-returns under an unconditionally-cycling caller faked a full firing
  pip cycle -- the "missiles cycle but never launch" incident mechanic);
  the ammo pull is bin->FeedAmmo @4bbee6 in the CALLER; both updateModel|=1
  marks (@4bbf05/@4bbf4c = ForceUpdate) bracket FireWeapon; recoil set @4bbf51
- Loading @4bbdd2: recoil bleeds ONLY here at electrical Ready and CLAMPS at 0
  (it ran to -114 before); bin Loaded -> weapon Loaded
- 7 @4bbe4d: binary-faithful roach motel (re-asserted unconditionally;
  recovery = ResetToInitialState only)
- slot 17 @004b9c9c reconstructed as MechWeapon::ComputeOutputVoltage
  (rechargeLevel=(rechargeRate-recoil)/rechargeRate, Emitter overrides with
  @4ba738) and called from Loading/7 -- the launcher recharge dial ANIMATES
  (the old "authentically static" claim was wrong)

FireWeapon bodies stripped to heat+spawn only per @004bcc60 (no view gate, no
ConsumeRound, no recoil); ConsumeRound retired (not a binary method).

Gotcha #20 sweep (all sites disasm-verified): simulationFlags|=0x1 == engine
DelayWatchersFlag (audio watchers muted forever) removed everywhere --
projweap/mislanch fire marks, ProjectileWeapon::ResetToInitialState (@4bbb47
= updateModel|=1); Emitter::SetDirty retired and split per binary site into
ForceUpdate() (@4bafaa/@4ba55d) vs ExecuteOnUpdate() (@4ba99a/@4ba943);
Emitter fault gate GetFlags()==1 -> simulationState==1 (@4baab9).

AmmoBin::GetAmmoState() accessor added (named-member read of ammoAlarm@0x1A8).
BT_LOOK_TEST=<frame> scripted verify added (mech4.cpp): holds the rear-view
button 300f on/300f off to drive viewFireEnable headlessly.

Verified solo ARENA1 (bhk1, autofire): 54-60 [projectile] PUSH + impact smoke;
look-back denial window = trigger pulses, state stays 2, zero launches,
resumes on release; enemy (disabled) mech launchers pinned 7 + full recoil;
STREAK-6 recharge dial sweeps across BT_SHOT frames; lasers fire throughout;
zero gauge faults.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

game/reconstructed/emitter.cpp

@@ -212,8 +212,16 @@ LWord Emitter::GetFlags()			{ return simulationFlags; }
 // the emitter family (task #10) -- an overheated emitter resets its firing
 // state and holds currentLevel at 0 until it cools below FailureTemperature.
 int   Emitter::GetFaultState()		{ return heatAlarm.GetLevel(); }
-void  Emitter::SetDirty()			{ simulationFlags |= 0x1; }
-void  Emitter::ClearDirty()			{ simulationFlags &= ~0x2; }
+// Gitea #12 / gotcha #20: SetDirty() { simulationFlags |= 0x1 } RETIRED -- bit 0
+// of simulationFlags is the engine DelayWatchersFlag (SIMULATE.h:170): once set,
+// PerformAndWatch skips this subsystem's ExecuteWatchers (the AUDIO watchers)
+// FOREVER.  The binary sites it transcribed are two DIFFERENT writes:
+//   `or word  [this+0x18], 1`  == updateModel |= 1  == engine ForceUpdate()
+//        (FireWeapon tail @4bafaa, ResetToInitialState tail @4ba55d)
+//   `or dword [this+0x28], 2`  == DontExecuteFlag   == engine ExecuteOnUpdate()
+//        (ServiceDischarge idle @4ba99a + beam-end @4ba943)
+// Call sites now use the engine calls directly.
+void  Emitter::ClearDirty()			{ simulationFlags &= ~0x2; }	// AlwaysExecute (@004ba65c write path)
 
 
 //#############################################################################
@@ -344,7 +352,7 @@ void
 		? *(Entity **)((char *)owner + 0x388) : 0;		// 0x474 <- mech target entity
 	targetLocalFlag = 1;								// 0x470
 
-	SetDirty();											// this+6 |= 1  (needs replication)
+	ForceUpdate();										// @4bafaa `or word [this+0x18],1` (updateModel -- needs replication)
 }
 
 //
@@ -400,9 +408,12 @@ void
 	}
 	targetWithinRange = UpdateTargeting();				// @004b9bdc -> this+0x34c
 
-	// hard failure: powered-off, faulted, or the OWNING MECH destroyed (@004baa88
-	// checks IsDestroyed on the owner -- a dead mech's weapons drop everything)
-	if (GetFlags() == 1 || GetFaultState() == 2 || BTMechDestroyed((Entity *)owner))
+	// hard failure @4baab9: weapon DESTROYED (`simulationState@0x40 == 1` -- the
+	// old `GetFlags() == 1` was the gotcha-#20 mis-transcription onto
+	// simulationFlags@0x28, a latent kill-switch), own heatAlarm at FailureHeat
+	// (this+0x184 == 2), or the owning mech disabled (FUN_0049fb54) -- a dead
+	// mech's weapons drop everything.
+	if (simulationState == 1 || GetFaultState() == 2 || BTMechDestroyed((Entity *)owner))
 	{
 		ResetFiringState();								// @004ba9a8
 		currentLevel = 0.0f;							// 0x414
@@ -541,7 +552,7 @@ void
 {
 	if (firingActive == 0)								// 0x418
 	{
-		SetDirty();										// this+0x28 |= 2
+		ExecuteOnUpdate();								// @4ba99a `or dword [this+0x28],2` (DontExecuteFlag)
 		return;
 	}
 
@@ -554,7 +565,7 @@ void
 		weaponAlarm.SetLevel(2);						// Loaded
 		beamFlag       = 0;								// 0x46c
 		dischargeTimer = dischargeTime;					// 0x440 = 0x43c
-		SetDirty();
+		ExecuteOnUpdate();								// @4ba943 `or dword [this+0x28],2`
 		// replicate the beam END: one final Emitter update record turns the
 		// peer's copy off (the 1995 flush wrote idle-flagged subsystems too).
 		ForceUpdate();
@@ -835,7 +846,7 @@ void
 	beamScale       = Vector3D(1.0f, 1.0f, 1.0f);		// 0x42c
 	beamOrientation = EulerAngles(Radian(0.0f), Radian(0.0f), Radian(0.0f));	// 0x41c
 	firingActive    = 0;								// 0x418
-	SetDirty();											// this+6 |= 1
+	ForceUpdate();										// @4ba55d `or word [this+0x18],1` (updateModel)
 }
 
 //