quantum phase 4: lock parity with tests, fixtures, docs, and CI#5

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eacet wants to merge 16 commits intofeature/eng-2099from

feature/eng-2100

Commits on Apr 20, 2026

address PR review findings: lifecycle fence, auth-list, bootstrap cosigner, value, and call guard
eacet
committed
address review findings from 2026-04-20 foundry fork review
eacet
committed
address 2026-04-20 foundry fork review findings

eacet
and
claude
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address 2026-04-20 foundry fork review — cross-surface fences
eacet
committed
reject blob flags on all Quantum write paths
eacet
committed
document Quantum recover_signer semantics and reject empty sender_sig

eacet
and
claude
committed

Commits on Apr 21, 2026

Commits on Apr 28, 2026