evidence(OMN-16041): promotion receipt on OCC main for omnibase_infra#2744 (v0.38.5)

[jonahgabriel]

OMN-16041 — promotion evidence on OCC main for omnibase_infra#2744 (v0.38.5 dev→main)

Net-new files only. This is the main-side half of the evidence for the omnibase_infra dev→main promotion OmniNode-ai/omnibase_infra#2744.

Why this targets main and not dev

The receipt gate runs in main-release policy mode for any PR whose base is main, and that mode rejects evidence that is not yet on OCC main. Verbatim, from the promotion PR's verify / verify run:

##[notice]receipt-gate target_branch=main policy_mode=main-release
##[error]RECEIPT GATE FAILED: main release policy requires merged OCC evidence.
Resolve Evidence-Source to an OCC commit on main before promotion or hotfix merge;
current evidence source kind is open-pr.

The dev-side companion is open as #6489. OCC dev is 3457 commits ahead of main, so a dev merge does not reach main in any useful timeframe — hence this direct main PR, matching the existing pattern for main-release evidence in this repo (#3595, #3732, #4394).

Why the contract file here is not a copy of the dev-side one

contracts/OMN-16041.yaml does not exist on main. Copying the dev-side file wholesale fails lint_contract_check_values on main, because that file also carries three autobind-generated entries with hardcoded PR numbers (gh pr view 1989 ..., gh pr view 6463 ...) which main's linter rejects as legacy-gh-pr. Those entries belong to the ticket's omniclaude-side work and have nothing to do with this promotion.

So this file carries only the promotion entry. That is not a loss of binding: contract_entry_sha256 hashes the entry plus a pinned header subset (ticket_id, schema_version), not the whole file, so the entry hash is identical on both branches — sha256:7274b75d…. Only contract_sha256 (a raw-byte digest) differs between the two, and each receipt copy carries the digest of the file it actually sits next to.

The probe

Reads three files from omnibase_infra at the exact promotion head 3dd848d31857669592f528958b9fd1bd45a7c0b2 via gh api .../contents/...?ref=<sha> — an immutable ref — and asserts:

1. pyproject.toml declares version = "0.38.5" and pins omnibase-core==0.46.8, omnibase-spi==0.23.1, omnibase-compat==0.5.6 (all published; the currently-published omnibase-infra 0.36.1 pins omnibase-spi >=0.21,<0.22, which cannot resolve against the published 0.23.1 — that unresolvable pin chain is the defect this promotion exists to clear).
2. Neither of the two hand-resolved runner-health handlers contains os.environ or os.getenv. Those two files were the promotion's only merge conflicts; this is the property that distinguishes the forward-port that was performed from the dev-wins resolution that check-env-reads rejects.

Fail-closed: a failed gh api fetch exits non-zero via || exit 1 rather than leaving an empty file that would trivially satisfy the absence half.

Recorded run — real output, exit 0:

MISSING: []
FORBIDDEN_PRESENT: []
OMN-16041-PROMOTION-PROBE-PASS: exact-head content confirms v0.38.5 with published core/spi/compat pins and zero env reads in the two forward-ported runner-health handlers

lint_contract_check_values.py → exit 0 on this branch. Hashes were recomputed after the repo's yamlfmt hook reflowed the contract, so they bind the landed bytes and not a pre-format draft.

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[jonahgabriel]

Superseded by #6491 — same commit content, head renamed to hotfix/* so this repo's main-target-guard admits it (it accepts only dev or hotfix/* against main).