KB housekeeping sweep: end-of-arc staleness purge (2026-08-06)

Corrections (wrong claims fixed + swept):
- open-questions: the DuckState 'no CODE consumer, authentic [T1]' verdict
  RETRACTED (consumer = the unexported posture block; squat clips shipped in
  BTL4.RES all along); the searchlight fog swap re-marked DONE (was 'STILL
  DEFERRED'); crouch index pointer updated.
- combat-damage: old task-#60 kill-score section marked SUPERSEDED by the
  report tail (BTPostKillScore retired).
- pod-hardware: crouch census rows -> COMPLETE; gauges-hud: 07-20 note
  (generators 'unreconstructed') re-swept.

New knowledge:
- reconstruction-gotchas #20: EXPORT-GAP BLINDNESS (4 incidents, 2 falsely
  T1; the byte-scan/named-member/RES-TOC/manifest checklist) + the
  verification-viewpoint bullet in #13 (the crouch capture errors).
- decomp-reference: master posture/crouch block offsets (+0x3f8/+0x79c, the
  myomers cluster) + 8 new bench env gates.
- rendering: beam-material decode (btfx brighten) + look-pass acceptance.
- experience-levels: crouch novice lockout in the +0x25c consumer list.
- build-and-run: the stale-link build ritual; test-harness: bench-script
  gotchas (both previously oral tradition).
- glossary: export-gap-blindness; multiplayer: crouch/searchlight ride
  existing records; subsystems: searchlight visuals pointer.

Status refresh: CLAUDE.md front + project-overview current-state -> core
gameplay reconstruction COMPLETE (774->801), polish phase, #60 census next.
Ledger addenda: INPUT_PATH row 6 complete; RESPAWN_REARM VehicleDead-sender
note. .gitignore: content/ bench artifacts (pngs/logs/eggs/exe) out of
status. checkctx CLEAN.

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

context/rendering.md

@@ -413,8 +413,15 @@ the VISUALS were the gap, decoded from MakeMechRenderables @004cef28 `case 0xbd8
   enables future site-hung effects). Wrecks go dark through the authentic gate (host shutdown
   forces lightState 0). Cross-node verified: B presses, A logs `[spot] cone SHOWN (seg 20)`.
 - Benches: `scratchpad/night12/searchfog.sh` (solo cockpit chain + red-fog end-to-end probe),
-  `spotcone.sh` (2-node cone + replication). OPEN items in [[open-questions]] (cone look pass,
-  the stubbed LoadObject wrapper + dormant marker case, the subtle authored deltas).
+  `spotcone.sh` (2-node cone + replication). BEAM MATERIAL decoded 2026-08-06 (b75bb4a) [T1]:
+  SPOT.BGF is a 7-vert cone ~50u forward and ~35° DOWN (a ground-pool lamp, not an air beam),
+  verts tinted cyan-white; its material class `btfx:brighten.25` smuggles the ADDITIVE factor
+  in DIFFUSE.r (0.25) with a warm emissive on the night page — the loader draws brighten*
+  batches as an additive veil (dest += vertexRGB × factor, blend pass, unlit); tint compose
+  (vertex cyan vs night emissive warm) [T3], flagged in the L4D3D draw branch. Look pass
+  ACCEPTED by field eyeball 2026-08-06 (translucent beam reads correctly; solo rig
+  BT_SPOT_SELF=1 + BT_CAM=face). Still open ([[open-questions]]): the stubbed LoadObject
+  wrapper + dormant marker case, the subtle authored deltas.
 
 ## Key Relationships
 - Geometry/LOD: [[bgf-format]]. Base: [[wintesla-port]] (L4D3D). Shadow/visual-conform: [[locomotion]].