docs(devlog): record the igwanu bug-PR merge round

devlog/_plan/260827_igwanu_bug_pr_merge_round/000_plan.md

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+# 000 — igwanu bug-PR merge round: plan
+
+Round base: `dev @ 8b1b65b8d` (local == `origin/dev`, verified 2026-08-27).
+Scope: the 13 open **bug**-labelled PRs. Four are Ingwannu's (#2767, #2766, #2764,
+#2761); nine are other authors' (#2747, #2745, #2740, #2733, #2729, #2726, #2693,
+#2638, #2497).
+
+Enhancement-labelled PRs are explicitly out of scope for this round.
+
+## The finding that orders the whole round
+
+Three PRs (#2767, #2764, #2747) show **failing required CI** — `ci`, `macos`,
+`test 3/4`, `gates` — while their own merged trees compile clean. The failure is
+not theirs. Every one of them fails the same repository-wide assertion:
+
+```
+error: package.json version 2.34.0 equals release tag v2.34.0, but this commit is
+not the one that tag names. The tree claims an already-published version.
+(fail) release version line > the in-tree version is never behind a released one
+```
+
+`dev` still carries `2.34.0` after tag `v2.34.0` shipped, so *every* PR opened
+after the release train inherits a red matrix. A second shared failure hits
+`gates`: `privacy:scan` reads the scp-style SSH remote principal recorded in
+`devlog/_plan/260827_release_train/020_preview_release.md` as an email address.
+
+**#2766 repairs both.** It is the keystone: until it lands, no other PR in this
+round can produce a trustworthy green matrix, and re-running their CI is wasted
+work. This is the inverse of the previous round's lesson — there, green checks
+were not evidence of health; here, red checks are not evidence of harm.
+
+Evidence: run `33081644562` job `98550259965` (#2767), run `33080634739` job
+`98546624127` (#2764), run `33059606933` job `98534630924` (#2747) — each shows
+`1 fail` and that one failure is `release version line`.
+
+## Merged-tree gate (this round's own evidence, not GitHub's)
+
+Every PR head was fetched, merged against `dev @ 8b1b65b8d` with
+`git merge-tree --write-tree`, committed as `mtp/<n>`, checked out to an isolated
+worktree sharing this repo's `node_modules`, and compiled.
+
+| PR | ahead | behind dev | merge-tree | tsc on MERGED tree |
+|---|---|---|---|---|
+| #2767 | 1 | 0 | CLEAN | OK |
+| #2766 | 2 | 0 | CLEAN | OK |
+| #2764 | 1 | 0 | CLEAN | OK |
+| #2761 | 1 | 2 | CLEAN | OK |
+| #2747 | 1 | 26 | CLEAN | OK |
+| #2745 | 2 | 26 | CLEAN | OK |
+| #2740 | 1 | 26 | CLEAN | OK |
+| #2733 | 1 | 43 | CLEAN | OK |
+| #2729 | 2 | 89 | CLEAN | OK |
+| #2726 | 1 | 63 | CLEAN | OK |
+| #2693 | 2 | 118 | CLEAN | OK |
+| #2638 | 2 | 179 | CLEAN | OK |
+| #2497 | 1 | **386** | **CONFLICT** | not reachable |
+
+The typecheck gate was itself verified rather than trusted: 12 runs finishing in
+~12s looked like a no-op, so a deliberate `const x: number = 'str'` was injected
+into a merged worktree and `tsc` returned `error TS2322`, exit 1. The speed is
+real — this repository is on the native TypeScript 7.0.2 compiler (~0.44s full
+typecheck). The gate works.
+
+## Cross-PR file contention
+
+`src/server/responses/core.ts` — **#2745, #2638, #2497**. Pairwise
+`git merge-tree` required before any second one of those lands; textual
+mergeability is not behavioral compatibility on the auth/routing boundary.
+
+`src/adapters/openai-chat.ts` — #2764 only. `src/adapters/openai-responses.ts`
+— #2767 only. `src/codex/auth-context.ts` — #2638 and #2497.
+No other file is touched by two in-scope PRs.
+
+## Loop-spec
+
+- Loop archetype: verifier-defined (spec-satisfaction repair per PR).
+- Write scope: `devlog/_plan/260827_igwanu_bug_pr_merge_round/`, `src/` and
+  `tests/` only where needed to land or reimplement a PR, plus PR metadata on
+  GitHub and `codex/` topic branches.
+- Out of scope: `main`, `preview`, releases, tags, npm publish, docs deploy,
+  enhancement PRs, force-push, history rewrite.
+- Bounds: `dev` is push-protected — every lane travels a `codex/` branch and a PR
+  targeting `dev`. `bun test` takes a machine-wide lock: one suite at a time,
+  long suites on `ssh lidge` via `ocx-run`. Never `OCX_TEST_NO_QUEUE=1`.
+
+## Work-phase map (one phase = one full PABCD cycle)
+
+| WP | Doc | Slice | Depends on |
+|----|-----|-------|------------|
+| wp1 | 000 | Docs-only roadmap: intake, merged-tree gate, contention map, lanes | — |
+| wp2 | 010 | **Keystone** #2766 — unblock the repository-wide CI gates | wp1 |
+| wp3 | 020 | Ingwannu remainder #2761, #2764, #2767 | wp2 |
+| wp4 | 030 | Clean approved lane #2733, #2726, #2747 | wp2 |
+| wp5 | 040 | Maintainer changes-requested #2745, #2729 | wp2 |
+| wp6 | 050 | Contributor remainder #2740, #2693, #2638 | wp2, wp5 |
+| wp7 | 060 | #2497 adjudication + round close-out | all |
+
+## Standing gates (inherited, all mandatory)
+
+1. Compile evidence comes from the MERGED tree, never the PR head alone.
+2. Any two PRs touching a shared file get `git merge-tree` before either merges.
+3. Green checks are not health unless the list includes `ci` / `test N/4` /
+   `macos`. **Corollary discovered this round: red checks are not harm until the
+   shared baseline is green.**
+4. One `bun test` suite at a time; remove a stale
+   `/tmp/opencodex-bun-test.lock` rather than bypassing the queue.
+5. Every lane travels a `codex/` branch and a PR targeting `dev`.
+6. A safety net that exists in code is not a safety net that functions.
+
+## Accept criteria (mirrored into goalplan criteria[])
+
+- c1 — all 13 PRs carry a recorded terminal disposition with SHA or reason.
+- c2 — merged-tree compile gate ran for every candidate (this doc's table).
+- c3 — each landed change carries a focused test receipt from the merged tree.
+- c4 — `dev` advanced only through PRs targeting `dev`.
+- c5 — auth/credential/OAuth surfaces are not landed autonomously.

devlog/_plan/260827_igwanu_bug_pr_merge_round/010_phase1.md

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+# 010 — wp2: the keystone, #2766
+
+**Lane L1 (commit-then-merge). Every other MERGE in this round serializes behind
+this one.**
+
+Precisely scoped: review, focused verification, rebases, and approval requests for
+other PRs run in parallel — their changed paths are disjoint from this one's
+(`package.json` plus a release-runbook document). What must wait is the act of
+merging, because landing anything else first leaves `dev` sitting on known-red
+release-version and privacy gates.
+
+PR #2766 `ingw/fix-release-doc-privacy-scan-2762` — head `076ad3036`, ready
+(not draft), MERGEABLE, 0 commits behind `dev`, 30 checks with **zero failures**.
+It is the only PR in the round whose matrix is already green, because it is the
+one that repairs the matrix.
+
+## Why it is the keystone
+
+Two repository-wide gates went red after the v2.34.0 release train, and they fail
+on `dev` itself, not on any contributor's code:
+
+1. `tests/release-version-line.test.ts` — `package.json` is `2.34.0` and tag
+   `v2.34.0` is published, so every commit after the tag "claims an
+   already-published version". Fails `ci`, `macos`, `test 3/4`.
+2. `privacy:scan` — `devlog/_plan/260827_release_train/020_preview_release.md:36`
+   contains a literal scp-style SSH remote whose `user@host` principal the scanner
+   reads as an email address. Fails `gates`.
+
+Confirmed inherited by #2767, #2764, #2747. Merging anything else first means
+reading a red matrix that says nothing about the PR under review.
+
+## MODIFY map (exact, already authored by the PR)
+
+MODIFY `package.json`:
+
+```diff
+-  "version": "2.34.0",
++  "version": "2.35.0",
+```
+
+MODIFY `devlog/_plan/260827_release_train/020_preview_release.md`:
+
+The runbook's push line is rewritten to build the destination from two shell
+variables (`release_host=github.com`, `release_repo=lidge-jun/opencodex.git`) and
+interpolate them, so the scp-style principal never appears as one literal token.
+The exact diff is on the PR; it is not reproduced here, because quoting it
+verbatim would reintroduce the very literal the scan rejects — this document is
+itself scanned.
+
+The push destination is byte-identical after expansion and the deploy-key override
+is preserved. This is documentation text, not executed release automation.
+
+## Security-boundary judgement (MAINTAINERS.md)
+
+The PR touches `package.json` version metadata and a release runbook document.
+`AGENTS.md` flags release automation — `scripts/release.ts`,
+`.github/workflows/release.yml` — for mandatory security review. **Neither file is
+touched.** Verified: `release.yml` triggers on `workflow_dispatch` only, with an
+explicit `version` input that must equal `package.json` and an immutable commit
+input. A version bump on `dev` therefore cannot initiate a publish; a human
+dispatch with an explicit version is required.
+
+Dependencies and lockfiles are unchanged, and no scheduled, push-triggered,
+auto-merge, or version-keyed publish path exists: `release.yml` is
+`workflow_dispatch`-only and additionally rejects any ref that is not `main` or
+`preview`. A version bump on `dev` cannot publish.
+
+**It is still not unreviewed-autonomous.**
+`.github/scripts/pr-sponsored-surface.cjs` lists `package.json` as a restricted
+surface, and `MAINTAINERS.md` requires approval from at least one maintainer who
+is not the author, plus explicit security review for release/package boundaries.
+The PR body's unticked box says exactly this.
+
+A round-level instruction to "merge the bug PRs" is not the exact-head PR approval
+that `MAINTAINERS.md` and GitHub require. **Approval gate: before merge, a
+non-author maintainer approves #2766 at its exact head.** `Ingwannu` is the
+author, so the approval must come from another maintainer account. Cannot be
+self-satisfied and cannot be inferred from this document.
+
+## TESTS
+
+No new test. The behavior proof is that the two already-red repository gates turn
+green, which is observable on the merged tree and on post-merge `dev` CI.
+
+## Verification (C)
+
+```bash
+# merged tree already built as mtp/2766
+bun x tsc --noEmit                                   # expect exit 0
+bun test tests/release-version-line.test.ts          # expect 3 pass / 0 fail
+bun run privacy:scan                                 # expect exit 0
+```
+
+Post-merge, the decisive evidence is the *next* PR's matrix: re-run CI on #2767 or
+#2764 and confirm `ci`, `macos`, `test 3/4`, `gates` go green with no change to
+their own diffs. That is the proof the keystone actually was the keystone.
+
+## Lane execution
+
+Ready, mergeable, green, 0 behind, targets `dev`, needs no rebase — so no
+`codex/` branch is required.
+
+Merge sequence, in order, none skippable:
+
+1. Confirm the merged-tree receipts above.
+2. **Obtain a non-author maintainer approval at the exact head `076ad3036`.**
+   `gh pr view 2766 --json reviewDecision` must read `APPROVED`, not
+   `REVIEW_REQUIRED`.
+3. `gh pr merge 2766`.
+
+If step 2 cannot be satisfied in this round, #2766 exits as **NEEDS_HUMAN
+(approval)** — and because it is the keystone, every PR gated behind it inherits
+that outcome. That is a real possible terminal state for this round, not a
+formality to route around.

devlog/_plan/260827_igwanu_bug_pr_merge_round/011_wp1_outcome.md

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+# 011 — wp1 outcome: roadmap lock
+
+Docs-only cycle. No production code changed. Deliverable is the plan unit itself:
+`000_plan.md` plus six decade docs, locked at `77635d8c9`.
+
+## A-gate: two independent Sol-high reviewers, four rounds
+
+| Round | Lane | Verdict | Result |
+|---|---|---|---|
+| r1 | facts | NEAR-PASS | 1 correction applied (`27b040931`) |
+| r1 | judgement | **FAIL** | 2 blockers, both accepted |
+| — | judgement re-verify | **FAIL** | 1 blocker incompletely closed |
+| — | judgement re-verify | PASS | both closed |
+| r2 | judgement confirm | PASS | rebound to the repaired files |
+
+### What the facts reviewer independently re-derived
+
+Re-ran `git merge-tree` for all 13 PRs from `dev@8b1b65b8d` and confirmed all 12
+clean tree hashes matched `mtp/<n>^{tree}` exactly before typechecking, plus the
+`#2497` conflict. Counted every changed path across all 13 PRs and confirmed the
+contention map is exhaustive: `src/codex/auth-context.ts` (#2638, #2497) and
+`src/server/responses/core.ts` (#2745, #2638, #2497), nothing else shared.
+
+Its correction: the plan had collapsed two distinct shared defects into one per-PR
+line. `test 3/4` and `macos` fail on `release version line`; `gates` fails on
+`privacy:scan`; `ci` is the fan-in. #2747 has no `gates` failure at all because
+its head predates the runbook document.
+
+### What the judgement reviewer caught — the two that mattered
+
+**1. I violated this repository's own security rule.** The plan reproduced the
+unfixed #2745 credential-boundary defect — mechanism, activation sequence,
+remediation direction — inside `devlog/`, a public tracked directory, while the PR
+is open. `AGENTS.md` §"Security working notes" forbids exactly that, and says so in
+a section written because maintainer-authored triage had done it before.
+
+My error in reasoning: I treated the detail as publishable because the reviewer had
+already written it in a public PR comment. But the rule keys on whether the **fix
+has shipped**, not on where the analysis first appeared. An open PR means
+pre-disclosure.
+
+The first repair was incomplete — the `TESTS` section still named the regression
+design, which carries the activation shape without the prose. The reviewer caught
+that too. Both are now in `.tmp/2745-security-triage.md` (gitignored, confirmed via
+`git check-ignore`).
+
+**2. Every merge lane skipped the approval `MAINTAINERS.md` requires.** The plan
+went from "CI green" straight to `gh pr merge`. `MAINTAINERS.md:57-59` requires
+approval from at least one maintainer who is not the author, and
+`.github/scripts/pr-sponsored-surface.cjs:52` lists `package.json` as a restricted
+surface. All four Ingwannu PRs read `REVIEW_REQUIRED`. A round-level instruction
+from the user is not an exact-head PR approval.
+
+It also refuted the release-safety framing as incomplete rather than wrong: no
+scheduled, push-triggered, auto-merge, or version-keyed publish path exists
+(`release.yml` is `workflow_dispatch`-only and rejects any ref that is not `main`
+or `preview`), but `package.json` is still a restricted surface needing review.
+
+### Approval path, resolved
+
+The operator is authenticated as `lidge-jun` (`gh auth status`), listed in
+`MAINTAINERS.md:10` as project owner. `Ingwannu` is a separate maintainer. A
+`lidge-jun` approval of an Ingwannu-authored PR is therefore a valid non-author
+maintainer approval, confirmed by the reviewer against `MAINTAINERS.md:57-59`.
+The gate is satisfiable without self-approval.
+
+## Keystone verification (full suite, remote)
+
+`mtp/2766` pushed as `codex/mtp-2766-probe`, checked out on `lidge`
+(`~/ocx-ci/opencodex`), full `bun run test` under `ocx-run`:
+
+```
+k2766: OK rc=0   finished 2026-08-28T00:25:04+09:00
+15334 pass / 0 fail
+```
+
+Focused, on the same merged tree:
+
+```
+tests/release-version-line.test.ts   3 pass / 0 fail
+bun run privacy:scan                 Privacy scan passed (exit 0)
+bun x tsc --noEmit                   exit 0
+```
+
+On plain `dev` the same scan fails on the runbook literal, and the same test fails
+repository-wide. The keystone claim is proven on both sides.
+
+## Gate honesty note
+
+The typecheck gate was verified rather than trusted: 12 merged trees compiling in
+~12s looked like a no-op, so a deliberate `const x: number = "str"` was injected
+into a merged worktree — `error TS2322`, exit 1. The speed is real; this repository
+runs the native TypeScript 7.0.2 compiler at ~0.44s for a full typecheck.
+
+## Carried into wp2
+
+1. Merge #2766 first; it is the only PR that can produce a trustworthy green
+   matrix for the others. Approval at exact head `076ad3036` before merge.
+2. Review, rebase, and verification of other PRs may proceed in parallel — only
+   the merges serialize.
+3. Follow-up outside this round's scope: the same pre-disclosure material exists
+   in `devlog/_plan/260826_wp7e_presence_driven_oauth_failover/` and
+   `devlog/_plan/260827_dev_hardening/`. Pre-existing, belongs to other active
+   work streams, needs separate authority. **Escalate; do not silently rewrite.**