Codex review pass: three real faults corrected

R-228: Ambidextrous was a compulsory build. 0/-20 gave a full-strength main hand
AND a cheap second attack. It now buys consistency, not a free attack: -20 in both
hands against -20/-40 untrained.

R-229: full auto was a firing squad. Ten independent hits off one critical, each
with its own damage, location and Major Wound check. Hits capped at 3/5/7, and a
burst is ONE wounding event however many rounds connect.

R-230: Engines deleted the pressure it existed to create. Guns +2 and Helm +1
against a vent of 3 made a fighting round heat-neutral, so Heat only mattered when
the engineer failed. Venting is now 2/3/4.

Also: falling halving no longer stacks (soft + controlled quartered the drop);
blast has one formula floored once, so the answer no longer depends on call order.

And the structural note — "giving everyone a roll is not the same as giving
everyone a decision". Sensors, Damage Control and Medical now have mutually
exclusive modes that bite in the engine: mark/spoof/read, patch/brace,
restore/steady.

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

packs/gear/CURRENT

@@ -1 +1 @@
-MANIFEST-000002
+MANIFEST-000004

packs/gear/LOG

@@ -1 +1,5 @@
-2026/08/11-07:33:59.240938 16edc7000 Delete type=3 #1
+2026/08/11-08:06:46.418514 17497b000 Recovering log #3
+2026/08/11-08:06:46.418608 17497b000 Level-0 table #5: started
+2026/08/11-08:06:46.418879 17497b000 Level-0 table #5: 27954 bytes OK
+2026/08/11-08:06:46.419164 17497b000 Delete type=0 #3
+2026/08/11-08:06:46.419211 17497b000 Delete type=3 #2

packs/gear/LOG.old

@@ -0,0 +1 @@
+2026/08/11-08:06:24.257347 170d27000 Delete type=3 #1