v2: depth 8 -> 32 to match the Phase-1 graded MLP shape (width 256, depth 32). The v1 fixture was baked 2026-05-28 when the challenge itself was depth=8; Phase 1 moved to depth=32 on 2026-06-18 and the fixture was never rotated, so the smoke gate was exercising a 4x smaller problem than grading under the same 60s / 272 GFLOP limits.
6a4e245 verified