chore(release): settle v1.7.1

[mega-maxwell]

Settle v1.7.1 at 0689d569f425a8c0ec085407fb41fe7e2a60bef3 (tip of release-v1.7.1).

Merging this PR is the settlement decision: release-publish will tag the merge commit as v1.7.1 and publish the GitHub Release with the notes below. The default branch picks this entry up in the next release candidate PR. If more commits land on release-v1.7.1 first, this PR goes stale and must be regenerated.

v1.7.1 (2026-09-08)

Features

• seal REX6 and open REX7 (#360)

Fixes

• chain: schedule Rex6 on the canonical mainnet and testnet hardfork schedules (#371)

Refactoring

• block: derive hardfork gating from single-source spec resolution (#362)

Documentation

• publish the Rex6 activation timestamps (#364)
• specify compute gas accounting and pin it with a cross-spec test harness (#358)
• add audit-derived execution and dev-tool rules to REVIEW.md (#356)

CI

• publish targets on release — crates.io and mega-evme to the registry (#374)
• adopt the shared release flow (candidate / settle / publish) (#372)
• let PR comments trigger a Claude review reconcile round (#361)
• point Claude actions at megaeth-labs/.github (44116f6a10)
• run pr-review under the CI app identity (#357)

[mega-maxwell]

Claude review status

Living comment — rewritten in place. The review workflow keeps this single comment up to date instead of posting a new one each round, so it always describes the latest reviewed commit and the earlier text is intentionally gone. No reply is needed here; reply to a finding in its own review thread, and answer an open question in a reply on this PR. The next review round reconciles your answer.

⏭️ Review skipped

Not reviewing head 928c3500 · updated 2026-09-08T09:41:59+00:00

This pull request is not a review target: opened by mega-maxwell[bot], the reviewer's own identity. No review round runs for it. Anything listed below is from an earlier round.

[github-actions]

🧬 Mutation testing — ✅ PASS

Nothing to test — no mutants were generated on the changed lines.

[github-actions]

🧬 Mutation testing

No results at target/mutants/mutants.out — nothing was mutated (e.g. no mutatable changes).