docs: seventeenth-block coordination subsection

[Chris0Jeky]

Docs-only, one file: docs/STATUS.md. The coordination-lane subsection on the seventeenth block (range 5b34beb64 to f74514fd1, PR #2704), in the heading space the alpha lane left: the record of the coordinator's PR #2701 (merge e641c7ab0: the sixteenth-block subsection, D-15 and the clause-4 green) and the Project board moves applied from the alpha lane's packets in that range (#1871, #2638, #2689, #1940, #2682), with the two open lane PRs (#2705, #2706) named as open at this writing.

No maintainer decision is inferred; nothing in OUTSTANDING_TASKS.md changes.

Verified: node scripts/check-docs-governance.mjs passed; git diff --check clean; every SHA and PR number was read from the alpha lane's merge packets and confirmed with gh pr view during the cycle.
NOT verified: nothing executable changed.

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[Chris0Jeky]

Review gate (Codex review credits exhausted, SC-9; documentation-only): one fresh-context read-only reviewer (Opus 5) on the first head. Verdict: SHIP; the four LOWs were applied in the follow-up commit (wording only).

Checked by reading (reviewer): the subsection sits inside the seventeenth block after its corrections line and before the rc.1 section, matching the sixteenth block's subsection shape; the header's #2701 pointer now resolves to this subsection; every board claim matches the earlier blocks' entries for #1871, #2638, #2689, #1940 and #2682; "Now never exceeded two" survives every interleaving of the three exits and three entries; no em dashes, no green or safety claim beyond the evidence; D-15 still unticked, no human decision inferred.

Findings and disposition (all LOW, fixed): the clause-4 green now names 42d3007; the D-15 summary names the two measured elements and marks the generalization as reasoning; "the issue closes with it" became "is expected to close with it"; the #2638 item 2 transition is no longer counted in two blocks.