SeekVoltageGraph: full reconstruction -- the eng-page POWER graph + top-box eraser (Gitea #11)

The #10 audit's one WRONG: the port Execute was a bring-up no-op, so the
emitter/myomer engineering pages never erased their top data box -> stale
sibling-page ghosts on the shared Eng bit-plane (SYSTEM 10 PPC showing the
Streak ammo box, etc).  Full faithful widget landed:

- btl4gau2: ctor/BecameActive/Execute/clear/ticks/cursor recovered from the
  capstone disasm of @004c6798/@004c6920/@004c6934/@004c6be4/@004c6c30/
  @004c6c6c (Ghidra dropped every x87 arg).  Plot: v=0..12000 step 1200,
  x=Round(response(v)*230), y=Round(v*(1/12000)*187) (ld80 @004c6bd0/@004c6d74
  = exactly 1/12000); change-test samples the response at 12000V vs the 9999
  activation sentinel; XOR op for tick/cursor move-by-redraw; destroyed branch
  centres edestryd.pcc and revives via own vtbl+0xC (BecameActive, slot 3 of
  PTR_0051a1fc -- vtable-dump verified).
- The vtbl+0x3C sampler identified from the binary vtables: Emitter slot 15
  @004bb42c = sqrt(P(v)/2.0e8), P @004bb3f4 = damageFraction*v^2*0.5*
  energyCoefficient; Myomers slot 15 @004b8f94 = sqrt(AvailableOutput(v)*3.6/
  350).  FUN_004dd138 == sqrt (part_015.c:4026): myomers' fabs reading
  corrected, GetSpeedReading renamed SeekVoltageResponse.  Port dispatch via
  complete-type bridges BTSeekVoltageSample/BTMyomersSeekSample +
  BTSubsystemDestroyed (databinding rule).
- Emitter's AUTHENTIC attribute table recovered (binary @0x511dd4, ids
  0x1D-0x25) and published: Laser*/Seek*/OutputVoltage@0x414 (currentLevel,
  RAW volts -- the live-cursor feed).  Field renames per the table:
  0x3F8 minSeekVoltageIndex / 0x3FC maxSeekVoltageIndex (static_assert-locked).
  The MechWeapon 0x1D OutputVoltage PORT ALIAS retired (binary table ends
  0x1C; Find walks lowest-id-first, the alias shadowed the authentic row).
  PPC::DefaultData -> Emitter::GetAttributeIndex().
- mech4: BT_PRESET_HOLD=<n> (freeze the #9 preset cycler after n pulses) for
  steady-state pixel verification; BT_SEEK_LOG diag.

Verified live (BLH, autofire): both #10 repro pairs held ghost-free for
minutes (SYS09->SYS10 PPC, SYS02->SYS04 ERMed, SYS05->SYS06 Myomers); curves
draw with live cursors; one replot per activation; quad panels/J-K-L/sec
panel un-regressed.

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

game/reconstructed/mechweap.cpp

@@ -118,10 +118,15 @@ static_assert((int)PoweredSubsystem::NextAttributeID
 const MechWeapon::IndexEntry
 	MechWeapon::AttributePointers[]=
 {
-	// task #16: the FULL binary table @0x511890 (eleven entries) + the
-	// port-extra OutputVoltage alias.  Every member offset matches the
-	// binary's (layout static_assert-locked); TriggerState stays the streamed
-	// fire-button binding (id 0x13 PINNED).
+	// task #16: the FULL binary table @0x511890 (eleven entries).  Every member
+	// offset matches the binary's (layout static_assert-locked); TriggerState
+	// stays the streamed fire-button binding (id 0x13 PINNED).
+	// issue #11: the port-extra 0x1D "OutputVoltage" alias (-> rechargeLevel) is
+	// RETIRED -- the binary MechWeapon table ends at 0x1C, and the alias SHADOWED
+	// the authentic Emitter-level OutputVoltage (currentLevel@0x414, RAW volts --
+	// the SeekVoltageGraph cursor feed) because AttributeIndexSet::Find walks
+	// lowest-id-first.  Energy weapons now publish their own table (emitter.cpp
+	// ids 0x1D-0x25); no ballistic-weapon consumer ever bound the alias.
 	//
 	// The PADS fill our chain-vs-binary id gap (now 0x0F..0x11) with valid,
 	// named, never-bound entries (the binary's own ids here are the powered/
@@ -142,8 +147,7 @@ const MechWeapon::IndexEntry
 	ATTRIBUTE_ENTRY(MechWeapon, PipExtendedRange,   pipExtendedRange),	// 0x19 @0x348
 	ATTRIBUTE_ENTRY(MechWeapon, EstimatedReadyTime, estimatedReadyTime),// 0x1A @0x330
 	ATTRIBUTE_ENTRY(MechWeapon, RearFiring,         rearFiring),		// 0x1B @0x334 (task #68: real semantics)
-	ATTRIBUTE_ENTRY(MechWeapon, WeaponState,        weaponAlarm),		// 0x1C @0x350
-	ATTRIBUTE_ENTRY(MechWeapon, OutputVoltage,      rechargeLevel)		// 0x1D (port alias)
+	ATTRIBUTE_ENTRY(MechWeapon, WeaponState,        weaponAlarm)		// 0x1C @0x350 (binary table END)
 };
 
 MechWeapon::AttributeIndexSet&