docs(M88): record trace-ffn-sub-block-gguf-v1 v1.0.0 PROPOSED scaffold — SHIP-007 layer-3 H1/H2 unblock (#75)

Cross-repo M88 record for aprender PR #1532 (squash ca033610a,
2026-05-06). First parallel-track autonomous work post M-GPU-MOE-1.x
cascade closure.

Authors the GGUF-side sub-FFN telemetry contract that pins the
SHIP-007 layer-3 ffn_swigl bisection cascade architecture (4 stages,
4 falsifiers) and retro-records prior-work PRs that already shipped
the dense-path forward_traced.

Authoring discovery (lesson #2 of session): I initially claimed
M-FFN-GGUF-1 (LayerActivation struct) and M-FFN-GGUF-2 (forward_traced)
were PENDING. They're actually SHIPPED via prior PRs:
- PR #1081 (squash 108f8f71c) — PR A scaffold (6 non-FFN fields)
- PR #1082 (squash 30edfd357) — PR B sub-FFN populate (4 SwiGLU fields)

Force-pushed to correct the contract before merge.

Implementation stages (corrected):
- M-FFN-GGUF-0: SHIPPED (this contract scaffold)
- M-FFN-GGUF-1: SHIPPED (LayerActivation re-exported from apr_transformer)
- M-FFN-GGUF-2: SHIPPED (PRs #1081 + #1082)
- M-FFN-GGUF-3: PENDING (heavy comparison harness APR vs GGUF layer-3)
- M-FFN-GGUF-4: PENDING (SHIP-007 fix PR cites H1 or H2)

Methodology lesson: research existing implementation state via
git log + grep BEFORE authoring contract scaffolds for "next work".

Discharge potential per ship-two-models-spec.md §17.5: M-FFN-GGUF-3
→ M-FFN-GGUF-4 cascade closure transitively discharges 5 MODEL-1
PARTIALs (SHIP-002, SHIP-005, SHIP-006, SHIP-007, SHIP-008).

Cross-references bumped M87 → M88:
- spec status header (line 5)
- spec status snapshot (line 311)
- spec Run 1 end-M
- README:24
- CONTRIBUTING:258

`bash scripts/check-doc-drift.sh` green at M88.

Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>

Author: noahgift

CONTRIBUTING.md

@@ -255,7 +255,7 @@ is the project blueprint. Major behavioral changes update both:
 1. The contract's `status_history` (factual, machine-readable record).
 2. The spec markdown (narrative + milestone roll-up).
 
-Status as of v1.23.0 (2026-05-06): M0–M87 all SHIPPED; corpus complete
+Status as of v1.23.0 (2026-05-06): M0–M88 all SHIPPED; corpus complete
 (30/30); 13/13 gates green; companion ↔ aprender round-trip
 mechanically guarded. **M32d numerical-parity FUNCTIONALLY DISCHARGED**
 2026-05-02 (aprender PR #1228 squash 5235aaeb9): output transition

README.md

@@ -21,7 +21,7 @@ walks the two traces, applies per-tool semantic-equivalence rules,
 and emits a falsifiable parity score plus a closed-enum drift
 category for any mismatch.
 
-**Status (2026-05-06)**: M0–M87 all SHIPPED. Contract at v1.23.0
+**Status (2026-05-06)**: M0–M88 all SHIPPED. Contract at v1.23.0
 ACTIVE_RUNTIME. Corpus complete at the spec-prescribed 30 fixtures
 (all score 1.0). Parity-matrix coverage 15/15 reachable
 (2 OOS at trace boundary). FALSIFY-CCPA-007 hard-blocking on every PR