R42: gate_main reverted 61 byte-proven overlay banks it could not distinguish from its own
substitution (sweep_parallel gates commit=False by design). Fixed by committing overlay banks
before the main batch, chunking main at 8 to bound bisect cost, and replacing every blind
'git checkout -- src/ config/' with commit-or-refuse in ox_campaign and idiom_serial.
R43: sweep_parallel had an explicit branch admitting main, which cannot be gated incrementally
— wave ab banked 0/105 main cards while its non-main cards banked 94/115 (82%), and the wave
read as a drafting failure. sweep_parallel now refuses main and names gate_main.py.
Also: validate_targets now prefers the card's own addr field (named symbols like SYS_OBJ_F00
were MALFORMED and discarded whole 220-card waves); ox_campaign deals model lanes by
smallest-ratio scheduling (a 73-card wave had put 73 shards on ox and 0 on deepseek);
docs/accelerators.md gains the four vacuous-check defects.