docs: seventeenth-block coordination subsection

docs/STATUS.md

@@ -365,6 +365,11 @@ Board frontend:
 
 Corrections to earlier blocks in this file: the thirteenth block's `#2630` sentences that the Paper active-proposal warning is `position: sticky` and that the decision rail's sticky rule reads `--paper-review-sticky-offset` describe rules that have no effect, and the same line's clause that "the pinned warning itself sticks" is false: measured in Chromium on 2026-09-05 (`#2638`), nothing between those elements and the document scrolls (the shell grows with content and three ancestors, including the shell's `.td-content`, are overflow containers that never overflow), so neither element pins and both leave the viewport with the page; the ResizeObserver seam writes the correct offset to a rule that is never consulted. The lane parked `#2638` items 1 and 3 on that layout decision (proposed D-15) rather than delete the machinery or retitle the claim.
 
+Coordination lane (coordinator session; docs, issue topology and Project state only, no product code):
+- **The sixteenth block's coordination subsection, D-15 and the clause-4 green at `42d3007f0` are recorded (PR `#2701`, merge `e641c7ab0`; docs-only, `docs/STATUS.md`, `OUTSTANDING_TASKS.md`, `docs/releases/V0_3_0_READINESS.md`).** D-15 carries the alpha lane's `#2638` measurement (neither the decision rail nor the degraded warning pins, and by the same ancestor chain nothing else in the Review view would, because the document is the scrollport and three never-overflowing ancestors capture `position: sticky`), three measured options and the proposed default A; the maintainer rules by letter on `#2638`.
+- **Project board, applied from the alpha lane's packets:** `#1871` Now to Pending on `#2700`; `#2638` still Now for item 2, Blocked again on `#2702` (items 1 and 3 on D-15); `#2689` Now for items 6 to 10, Pending on `#2703` (item 5 and the detail read's clear stay open); `#1940` Blocked to Now for the two `#2662` residuals, returning to Blocked on D-9 when its PR merges (PR `#2705`, open at this writing); `#2682` Pending to Now for its route-walk test-doc follow-ups (PR `#2706`, open at this writing; the issue is expected to close with it). Now never exceeded two.
+- **Not verified:** nothing executable changed in the coordinator's PR.
+
 v0.3.0-rc.1 SHIPPED (2026-08-30, annotated tag `3fc9f6e8e` peels to `9d2ea3c7c`):
 - **The public v0.3.0-rc.1 pre-release exists**, cut by the agent under the maintainer's v0.3 RC deck reply q-1 A (2026-08-30; map `map:v1:bec0a8dd…dd9138`; record `#1947`) and the repository's declared authority. The GitHub Release is `prerelease=true`, `draft=false`, published 2026-08-30T02:26:06Z with three assets — `taskdeck-v0.3.0-rc.1-win-x64.zip` (53,916,746 bytes), its `.sha256` sidecar, and `taskdeck-v0.3.0-rc.1-provenance.txt` — and a composed page (download badge first, RC banner, SHA-256, quick-start link, `## Breaking changes` lifted from UPGRADING, `## Highlights` from `docs/releases/notes/v0.3.0-rc.1.md`, grouped `## What's changed`). `/releases/latest` still resolves to `v0.2.0`.
 - **Tag workflows:** CI Release 33287786328, Release Security 33287786318, Release Container 33287786267, Release Desktop 33287786253 — all four success. **GHCR:** `ghcr.io/chris0jeky/taskdeck:0.3.0-rc.1` published (`sha256:d47bdf2d…2db67`), `latest` and `0.2` both still `sha256:e4915d72…8c752`, and no `0.3` alias exists — the floating `latest` / `0.2` index digest is unchanged from the pre-tag capture (`sha256:e4915d72…8c752`) and no `0.3` alias was created, which is the live proof of `#2217`/PR `#2223` that the threat-model row was waiting for.