v1.32.0.0 fix wave: 7 community PRs + 3 security/hardening fixes

Token-registry UTF-8 compare hardened, IPv6 link-local navigation blocked,
gbrain ingestion tolerates NUL transcripts, sidebar tab awareness works
off-localhost, AskUserQuestion preamble forbids \\uXXXX CJK escape, build
resilient to unborn HEAD, opus model IDs current in evals.

7 PRs landed after eng + Codex outside-voice review reshaped the wave:
#1153 (SVG sanitizer) and #1141 (CLAUDE_PLUGIN_ROOT) split to follow-up
PRs once Codex caught the stale #1153 integration sketch and the
wave-gating mistake on #1141.

Contributed by @RagavRida (#1416), @billy-armstrong (#1411),
@topitopongsala (#1207), @hiSandog (#1249), @fredchu (#1257),
@joe51317-dotcom (#1205), @johnnysoftware7 (#1392).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

CHANGELOG.md

@@ -1,5 +1,56 @@
 # Changelog
 
+## [1.32.0.0] - 2026-05-10
+
+## **Seven contributor PRs land. Three are security or hardening.**
+## **Root-token comparison, IPv6 link-local, NUL transcripts, sidebar tabs, build resilience, model IDs, CJK escape — all fixed in one wave.**
+
+Seven community PRs land together, hand-picked through `/plan-eng-review` plus a Codex outside-voice review that reshaped the wave mid-flight. The headline fixes are real: the root-token authentication path no longer throws on a multibyte input that matches JS character length but not UTF-8 byte length, direct `http://[fe80::N]/` URLs are now rejected the same way ULA addresses already were, `gbrain put` strips NUL bytes from pasted transcript content so Postgres doesn't reject the write, and the build script doesn't tear down when run on a fresh worktree with no git HEAD yet.
+
+Two PRs in the original 9-PR plan got moved to follow-up reviews after Codex caught load-bearing problems: the SVG-XSS fix (#1153) needs a sanitizer integration rebuild, and the hook-command variable swap (#1141) needs runtime verification in plugin + dev-symlink modes. Both will land as their own PRs.
+
+### The numbers that matter
+
+Diff against `main` at v1.31.1.0, measured from the seven landed PRs after eng + Codex review reshaping. The wave is intentionally repo-local — no new dependencies, no risky integration changes.
+
+| Metric | v1.31.1.0 | v1.32.0.0 | Δ |
+|---|---|---|---|
+| Community PRs landed | 3 | 7 | **+4** |
+| Security / hardening fixes | 0 | 3 | **+3** |
+| Behavior changes that ship to users | 1 | 7 | **+6** |
+| Free tests | 379 | 380 | +1 |
+| Memory-ingest tests | 18 | 19 | +1 |
+| LOC (excluding mechanical regen) | — | ~150 | — |
+| SKILL.md files regenerated (CJK preamble cascade) | — | 35 | — |
+| Preamble byte budget | 36,500 | 39,000 | +2,500 |
+
+The seven shipped PRs cover three categories. **Security:** root-token UTF-8 compare hardened, IPv6 link-local blocked, sidebar tab awareness expanded. **Correctness:** gbrain ingestion tolerates pasted-NUL transcripts, build resilient to unborn HEAD. **Polish:** AskUserQuestion preamble forbids `\uXXXX` escaping of CJK characters, eval suite tracks the current Opus model ID.
+
+### What this means for users
+
+If you run `pair-agent` and someone hits your tunnel with a multibyte token guess that happens to match length, the auth path returns false instead of crashing. If a transcript you ingest into `gbrain` has a NUL byte in pasted output, the write succeeds instead of returning `invalid byte sequence`. If you bring up `bun run build` on a brand-new Conductor worktree before the first commit, the build runs to completion. If your sidebar agent watches a tab on a non-localhost site, it now actually sees the URL and title. If you ask Claude a long question in Chinese, you stop getting `\u`-escaped codepoints rendered as nonsense glyphs.
+
+### Itemized changes
+
+#### Added
+
+- **#1257** Extension manifest gets the `tabs` permission. Sidebar tab awareness off-localhost now works — `chrome.tabs.query()` returns real `url`/`title` for sites outside `host_permissions` instead of undefined, so `snapshotTabs` writes real values into `tabs.json` and `active-tab.json` instead of silently skipping. Heads up: this widens the extension's permission scope; users will see the broader prompt on next install. Contributed by @fredchu.
+
+#### Fixed
+
+- **#1416** `isRootToken` constant-time compare hardened. Compares UTF-8 byte lengths via `Buffer.byteLength` before `crypto.timingSafeEqual`, which throws on length-mismatched buffers. A multibyte input whose JS string length matches but byte length differs now returns false instead of crashing on the auth path. Four regression tests cover multibyte byte-length mismatch, extra-prefix length mismatch, same-length last-byte flip, and empty-input-against-set-root. Contributed by @RagavRida.
+- **#1411** `gstack-memory-ingest` strips NUL bytes from the transcript body before piping to `gbrain put`. Postgres rejects 0x00 in UTF-8 text columns, and some Claude Code transcripts contain NUL inside pasted content or tool output. The fix uses `body.replace(/\x00/g, "")` so the regex literal stays reviewable in diffs and survives editors that strip control bytes. New regression test reuses the existing fake-gbrain writer harness at `test/gstack-memory-ingest.test.ts:376`. Contributed by @billy-armstrong.
+- **#1249** URL validation now blocks direct IPv6 link-local navigation. `fe80::/10` is centralised into `BLOCKED_IPV6_PREFIXES = ['fc', 'fd', 'fe8', 'fe9', 'fea', 'feb']` so `http://[fe80::N]/` is rejected by the same path that already blocked ULA addresses. Previously the link-local guard only fired during AAAA resolution; direct-literal URLs slipped through. Contributed by @hiSandog.
+- **#1207** `bun run build` resilient to missing git HEAD. The three chained `.version` writes (`browse/dist`, `design/dist`, `make-pdf/dist`) each now use `{ git rev-parse HEAD 2>/dev/null || true; } > ...`, so an unborn HEAD produces an empty file. `readVersionHash` already returns null on empty/trim, and the CLI's stale-binary check short-circuits on null — the "no version known" path flows through existing null handling without polluting `state.binaryVersion` with a sentinel string. Contributed by @topitopongsala.
+- **#1205** AskUserQuestion preamble forbids `\uXXXX` escaping of non-ASCII characters. Adds rule 12 plus a self-check item: models that hand-escape CJK strings get codepoints wrong, so `管理工具` ends up rendered as `㄃3用箱`. Long ≠ escape. Keep characters literal. The new rule cascades through the gen-skill-docs pipeline; 35 SKILL.md files regenerate to pick it up. Contributed by @joe51317-dotcom.
+- **#1392** Mechanical bump of remaining `claude-opus-4-6` → `4-7` references across the E2E eval suite. Covers `test/helpers/eval-store.ts` and five `test/skill-e2e-*.test.ts` files. Contributed by @johnnysoftware7.
+
+#### For contributors
+
+- The AskUserQuestion preamble byte budget ratchets from 36,500 → 39,000 to absorb the new CJK rule (rule 12 + self-check item). Generated SKILL.md files for all 35 tier-≥2 skills regenerate as a single mechanical commit.
+- Two PRs from the original 9-PR plan moved to follow-up reviews after Codex outside-voice caught load-bearing problems: #1153 (SVG sanitizer) needs the sanitizer integration rebuilt against the current `setTabContent` boundary in `browse/src/write-commands.ts:319` (the original PR removed `.svg` from the allowlist; the right fix is to keep it allowed and sanitize via DOMPurify before `setTabContent`). #1141 (CLAUDE_PLUGIN_ROOT) needs runtime verification in both plugin-installed and dev-symlink modes plus scope expansion to the non-frontmatter shell snippet at `investigate/SKILL.md.tmpl:107`.
+- Housekeeping: the three source PRs absorbed into v1.31.1.0 (#1242, #1394, #1393) get closed with credit comments pointing at the merge SHA.
+
 ## [1.31.1.0] - 2026-05-10
 
 ## **Three small community fixes land cleanly.**

VERSION

@@ -1 +1 @@
-1.31.1.0
+1.32.0.0