Gyro: damage fan-out FUN_004b2980 -- the cockpit hit-BOUNCE is live (task #56)

Re-disassembled the unexported gap 0x4b2980-0x4b2d8b byte-exact (capstone over
section_dump.txt) and reconstructed Gyroscope::ApplyDamageResponse:
- zero-damage + Collision(type 0) no-op; hit direction = Damage::damageForce
  or a RANDOM horizontal fallback when ~zero (per-component sign roll then
  value roll -- binary-legal until senders fill damageForce)
- direction rotated by the yaw-only torso-twist frame (placeRot=(0,twist,0)
  -> euler->matrix, the FUN_00408744 raw row-dot reproduced verbatim)
- per-type scaling amount / damageMultiplier[type] * damageResponse[type]
  .{trans,pitchRoll,yaw,vibration}; Explosive alone multiplies burstCount;
  each clamped at 1.3f
- four kicks: impulse(trans, dir), torque(pitchRoll, dir), impulse(vibration,
  vibrationDirection@0x390) and verticalImpulse(yaw, dir)

Layout corrections (byte-verified): gyro+0x390 is ONE Vector3D vibration axis
init (0,1,0) -- was mis-split as scalars animationOffset/Scale/Phase; mech
+0x5c4 is a FLOAT rumble-period countdown (gyroRumbleTimer) -- was mis-typed
int clipLoadGuard.

Call sites wired (binary-gated):
- take-damage hub: mech.cpp TakeDamageMessageHandler, FIRST action (@0x4a0264
  in hub FUN_004a0230) -- an invalid-zone hit still bounces
- crushable-icon crunch: mech4.cpp, torque 0.4 along the bounce delta-v + up
  impulse 0.2 (@4aa81e/@4aa86c)
- firing recoil: projweap.cpp FireWeapon, damage>3 -> impulse (0,0.6,-1.5)
  x damage/16 (@4bc136-4bc19c) via the new Mech::GetGyroSubsystem accessor

DEFERRED (recorded in KB with the byte recipe): the alternate-gait engage
jolt + 0.4s rumble (@4aa158-4aa365) -- its gates are [T3]-flagged and it
mutates the #49/#50-stabilized gait machine.

Verified live: [gyro-dmg] fires per hit with correct type scaling; eyePosition
shows the damped bounce (ramp to ~0.015u, oscillating Y, decay to zero); kill
chain un-regressed; no NaN.

Also recorded in KB: the OFFSET-COCKPIT verification -- Thor's authored
jointeye tranx=+1.13 matches its canopy X-center exactly AND our in-game eye
reproduces it to the hundredth (the placement model is correct per-mech); and
the playable roster is 8 models (strider/raptor/firstrtr/blkjack have assets
but no model resource -- BT_FORCE_MODEL with those names = NULL-resource AV,
cdb-verified, not a code bug).

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

game/reconstructed/mech4.cpp

@@ -3307,7 +3307,20 @@ void
 		localOrigin.linearPosition = savedPos;
 		MoveCollisionVolume();
 		dmg.damageAmount = 0.0f;
-		// gyro crunch feed (0.4*normal + 0.2*up): DORMANT until the Gyroscope un-stub
+		// Binary @4aa7ce-4aa871 (task #56): the gyro CRUNCH.  n = Normalize(
+		// dmg.damageForce) (the delta-v across the bounce, filled by the engine
+		// Mover::ProcessCollisionList -- no new plumbing), then a torque along
+		// n @ 0.4 (@4aa81e, 0x3ecccccd) + an upward impulse @ 0.2 (@4aa86c,
+		// 0x3e4ccccd).  Normalize is unguarded in the binary too.
+		if (gyroSubsystem != 0)
+		{
+			extern void GyroApplyDamageTorque (Subsystem *, Scalar, Scalar, Scalar, Scalar);
+			extern void GyroApplyDamageImpulse(Subsystem *, Scalar, Scalar, Scalar, Scalar);
+			Vector3D n;
+			n.Normalize(dmg.damageForce);
+			GyroApplyDamageTorque (gyroSubsystem, n.x, n.y, n.z, 0.4f);	// @4aa81e
+			GyroApplyDamageImpulse(gyroSubsystem, 0.0f, 1.0f, 0.0f, 0.2f);	// @4aa86c
+		}
 		if (GroundLog())
 			DEBUG_STREAM << "[ground] CRUNCH (crushable icon) at ("
 				<< savedPos.x << ", " << savedPos.z << ")\n" << std::flush;