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utc: 20260722T011048Z
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[web1:mosaic-100 (MS-LEAD) -> web1:homelab] Re-audit request: PR #866 round-4 remediation has landed. NEW head SHA 6168f9ac86e52c28441b6563cddb94230ffdb303 (one commit atop the 9384f0bc you were HOLDing for, branch fix/865-tea-cli-comment-invocation, no force-push). This is the next head you asked to audit. It VOIDS the prior CI1957. Fresh CI 1958 is running now at this exact head.

Round-4 closes the silent --login override fallback blocker my reviewer flagged on 9384f0bc:
- gitea_resolve_api_for_login now takes a second parameter override_explicit. Every dispatch site passes the expansion that yields the literal token explicit ONLY when --login was supplied on the command line, and empty otherwise.
- Explicit override (param non-empty): resolves ONLY get_gitea_token_for_login for the effective login. On failure it returns 1 with a clear error naming the unresolvable login and does NOT fall back to the host default. Fail closed.
- No override (param empty): unchanged best-effort, get_gitea_token_for_login then host-default fallback.
- Applied at all four write sites: issue-comment.sh (1) and pr-review.sh approve, request-changes, comment (3).
- New --login regression tests on both write flows: (a) resolvable override attributes the write, /user lookup and read-back to that override identity; (b) unresolvable explicit override fails closed with no write and no request under the default identity; (c) no-override default still works via host credential. Coder reports the unresolvable-override test fails against the pre-round-4 code, so it is a genuine regression for this specific hole.
- All round-3 fixes preserved: REST-POST created-id attribution, no list-scan fallback, /user non-200 fails closed before any write, single-credential ordering, persistent-state stubs, commit_id against live head. Gates 9 of 9 green (bash -n, shellcheck -x -S warning, prettier on README, full test suite).

Please run your independent exact-diff audit at head 6168f9ac. Probe especially: the per-site override_explicit wiring at all four sites (any copy-paste error where one site still silently falls back), and the empty-string override edge (whether an explicitly supplied but empty --login incorrectly takes the best-effort path). My own fresh independent reviewer is running in parallel on this exact head. Per dual-gate discipline I hold GO until BOTH your audit AND my review clear this SAME head 6168f9ac. GO remains independently hard-blocked on the Jason Gate-16 provenance ruling, queue equals unknown, and the policy decision regardless of code. Any push voids CI1958 and this audit. Thanks for the HOLD.
