Rebuild the Mac's OmniRoute gateway with GPT-6.1 Sol and follow the installed Codex version

[seathatflowsinourveins]

Scope

• What this PR changes, in one or two sentences: records the rebuild of the Mac coordinator's OmniRoute gateway on upstream release/v3.8.52 with upstream PRs 13788 and 15167 (GPT-6.1 Sol at max now answers through the gateway), the launch agent's wrapper that announces the installed Codex version at every start, and the daily update check; documentation and evidence only, no repository code changes.
• Base commit: f0cb8041e2
• Lane: lane:foundation (docs/ and evidence/artifacts/; manifests/evidence.json only by registration, in the last commit).
• Owned paths touched: docs/decisions/2026-10-02-omniroute-mac-rebuild.md (new), evidence/artifacts/omniroute-mac-rebuild-20261002/ (new), manifests/evidence.json (registration only).
• grants: none

SOTA sources

• OmniRoute upstream https://github.com/diegosouzapw/OmniRoute at release/v3.8.52 52823517533cfceec7abef2ff3e6285a19fe4121; PR 13788 (feat(search): implement /v1/alpha/search endpoint for Codex native web search (fixes #8674) diegosouzapw/OmniRoute#13788, commits 24bbadbad, 6c7990058); PR 15167 (feat(models): add GPT-6.1 Sol catalogs, pricing, and Copilot routing diegosouzapw/OmniRoute#15167, commit 0585aba55); upstream's build:release and check:pack-artifact scripts.
• The catalog mechanism and carry practice of the workstation gateway: docs/decisions/2026-09-30-omniroute-rebuild.md (claim C9 of its receipt: the announced client version drives the live catalog query).

Evidence-class table

Claim	Evidence class	Command / receipt
The package was built from the named base plus the two PRs and passed upstream's artifact policy as a recorded canary build	upstream_unchanged scripts plus local_integration	build-manifest.json (tarball sha256 d602dc42…, BUILD_SHA 6f246e84a); scripts/build*.sh.txt
After the switch, GPT-6.1 Sol and GPT-6 Astra at max answer 200 and codex exec through the gateway works	local_integration (probe gate)	checks/probe-after.json, checks/switch-2.log
The first switch rolled back on its own after 401s from the migrated key table	local_integration	checks/switch-1.log, receipt.json
The gateway announces the installed Codex version (0.160.0 at start)	local_integration	receipt.json codex_follow
Upstream effort on the wire for GPT-6.1 Sol	not read back here	limit in receipt.json

Local commands run

$ the build: npm ci; npm run build:release; OMNIROUTE_ALLOW_CANARY_BUILD=1 npm run check:pack-artifact; npm pack
check:pack-artifact passed (canary recorded); tarball sha256 d602dc42c7357e032b1e2323ba6660e0e1400bb5e997cb1c3857882654f9dbe4
$ python3 switch_gateway.py <tarball> <manifest> <work>   # attempt 2
smoke healthy; switch bootstrap 0; health 200; probe attempt 1 passed; update-check agent bootstrapped
$ /usr/bin/python3 omniroute-update-check.py   # first run
codex_follow unchanged (0.160.0); latest release v3.8.51; PRs 13788 and 15167 unmerged
$ the locally runnable validate.yml steps (validate.py, evidence_manifest --check, zizmor offline, the generators' checks, the verdict gate)
all exit 0 (the final-catalog step needs #595)

Decision record

docs/decisions/2026-10-02-omniroute-mac-rebuild.md (alternatives: a version bump on the old build, waiting for an official v3.8.52, nightly automatic rebuilds; overturn: an official release carrying both PRs).

Host evidence

Not applicable: no file under evidence/hosts/.

Checklist

• New/changed GitHub Actions are pinned to a full commit SHA with a version comment (no floating tags). None changed.
• New/changed workflows declare top-level permissions: contents: read (or a narrower, explicitly justified addition). None changed.
• No secrets are printed, logged or committed; no new required secret was added without a documented owner. The launch agent's key is the documented non-secret loopback placeholder.
• No new paid hosting, subscription or billing surface was introduced.
• Peer-owned untracked files and worktrees were preserved (not deleted, moved or overwritten).

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