#118: the eject option comes alive -- per-frame arm chain closed (FUN_004a9b5c+0x10)

The evaluator's "unexported caller" found by E8-scan: the Mech MASTER
PERFORMANCE (FUN_004a9b5c, in the 004a977x..004ab188 export hole) calls
EvaluateEjectPermission as its FIRST act every frame. Without that call the
port's ejectPermitted stayed at ctor-0 forever -- the panic-armed mode never
raised, so the PANIC lamp never lit and testers "never saw the option for
eject come alive". Restored at the top of Mech::PerformAndWatch (masters
only, like the binary).

Mislabel swept: mech+0x414 is ejectPermitted, NOT "missionReviewMode" -- the
mapper's @004d196c edge-watch arms PANIC mode 0x200000 from it (the real
review mode is the GLOBAL DAT_004fd550; btl4pb now reads that global, the
GetMissionReviewMode stub is retired, mapper member renamed
previousEjectPermitted).

Verified live: kill 4 generators -> "[eject] panic-arm mode ON" -> the
miniconsole Panic button lights dark->bright (pixel captures; the pad panel
shades it from the same PadRIO lamp state the pod's physical button uses) ->
BT_EJECT_AT press -> PUNCH-OUT -> respawn heals -> mode disarms -> healthy
presses REFUSED. BT_EJECT_LOG=1 logs the arm edges.

Note: no shipped gauge rides mode 0x200000 -- the 1995 eject indication is
the button lamp; the weapon-eng MFD "UNJAM/EJECT" is the ammo-jam indicator.

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

game/reconstructed/btstubs.cpp

@@ -10,7 +10,7 @@
 //   body recovered from BTL4OPT.EXE (the binary oracle) / the RP analogue.   //
 //                                                                            //
 //   == RUNTIME BRING-UP WORKLIST (replace these) ==                          //
-//     Mech::GetMissionReviewMode / IsAirborne / SetTargetRange /             //
+//     Mech::IsAirborne / SetTargetRange /                                    //
 //        SetMappingSubsystem / RaiseStatusAlarm                              //
 //     Mech__DamageZone::LoadCriticalSubsystems                               //
 //     MechSubsystem::TakeDamage / OnAlarmChanged                            //
@@ -97,11 +97,11 @@ void Notify_Objective_Reached(int * /*objective_subsystem*/, Mech * /*mech*/)
 // Mech method stubs.
 //===========================================================================//
 
-// TODO(bring-up): reads mech+0x414 (mission-review playback flag).
-int Mech::GetMissionReviewMode()
-{
-	return 0;
-}
+// (GetMissionReviewMode stub RETIRED 2026-08-03: it was a mislabel of
+// mech+0x414 = ejectPermitted, now served by the inline GetEjectPermitted in
+// mech.hpp.)  The REAL mission-review mode is this GLOBAL (DAT_004fd550);
+// the port never enters scrub/review, so it stays 0.
+int gMissionReviewMode = 0;
 
 // TODO(bring-up): true while the mech is off the ground (jump-jet / fall state).
 int Mech::IsAirborne()