docs(audit): PMAT-3477 receipt — #3090 GPU required, not a non-goal (decision 2026-09-19)

[noahgift]

Docs-only. Updates the #3477 implementation receipt so the kernel PR's quorum brief is not judged against a stale disposition.

• docs/audits/impl-PMAT-3477-receipt.md row 6 and the Gaps entry: "GPU: implement Gated DeltaNet / SSM inference for Qwen3.5 / Qwen3.8 hybrid GGUFs #3090 dated non-goal (2026-09-18)" → superseded 2026-09-19, Noah selected "GPU required — build GPU: implement Gated DeltaNet / SSM inference for Qwen3.5 / Qwen3.8 hybrid GGUFs #3090 now"; proof stated (apr qa Golden Output GPU on lambda sm_89 + gx10 sm_121; qwen35-0.8b-q4km cuda rung green; QHF-GPU-008 / QE2E-DEV-008 from contracts(qwen35-gpu): GDN-on-device obligations + cuda claimed on the Qwen3.5 ladder rung — RED until #3090's path is measured on both hosts (#3477) #3502).
• Notes that bump PR release: 0.68.2 #3498 is disarmed and its CHANGELOG [0.68.2] paragraph must be rewritten before it re-arms.
• The EPIC: release train 0.68.2 (interrupt) — Qwen3 CPU+GPU verification, P0 #3477 acceptance row for GPU: implement Gated DeltaNet / SSM inference for Qwen3.5 / Qwen3.8 hybrid GGUFs #3090 was edited in the issue body to match (non-goal option withdrawn).

keep-open: #3477 (epic closes at the tag), #3090 (closes with the GDN CUDA path), #3498 (bump PR, owner re-arms)
ont-delta: none

🤖 Generated with Claude Code

[github-actions]

§13.11 rung 1 — quorum shadow verdict

S13-SHADOW pr=3503 head=39cc9009708d9a8a51bb0606debf515edd0ffb97 verdict=REFUSE class=Q1 arm_rc=1

Shadow mode: this records a verdict and merges nothing. A refusal
to arm is not a block (§13 adds zero rows to §7) — the pull request is
exactly as green as it was.

[noahgift]

quorum-review (AD-04): three PASS — agreed (auto_merge: checked=true was_armed=false disarmed=false)

{
 "ticket": "PMAT-3090",
 "head": "30eb3bce6249ad32810dba7937aa35460646aecc",
 "width": 3,
 "executor": "agy",
 "agreed": true,
 "auto_merge": {
  "checked": true,
  "was_armed": false,
  "disarmed": false,
  "note": "auto-merge not armed"
 },
 "lanes": [
  {
   "lane": 1,
   "verdict": "PASS",
   "findings": 2
  },
  {
   "lane": 2,
   "verdict": "PASS",
   "findings": 0
  },
  {
   "lane": 3,
   "verdict": "PASS",
   "findings": 2
  }
 ]
}