chore: record F149 debt closeout

[fall-out-bug]

Summary

• records the post-merge Beads closeout commit in the changelog
• restores the closeout path to PR/merge flow after sdplab-t5k3 was closed

Verification

• go run ./cmd/sdp-doc-sync --mode check --strict
• go run ./cmd/sdp-protocol-check --format json --strict

[github-actions]

SDP Auto-Attestation

Field	Value
Branch	chore/F149-closeout-main-green
Commit	2ead0060
Changed files	1
Tests	✅ pass (6129 passed, 0 failed)
Lint	✅
Scope	✅ no linked workstreams — auto-attested from CI observation
Attestation generation	✅
Coverage	⚠️ 65.28714285714287%
Signed	✅ Sigstore bundle
Beads	none

Full attestation report

{
  "all_lint_pass": true,
  "all_tests_pass": true,
  "attestation_id": "ci-auto-157-eb336861",
  "beads_ids": [],
  "branch": "chore/F149-closeout-main-green",
  "changed_files": 1,
  "coverage_ok": false,
  "coverage_pct": 65.28714285714287,
  "coverage_threshold": 80,
  "generated_at": "2026-05-15T11:16:51Z",
  "head_commit": "2ead00607762b5eadaa4b923aecf97094a06e9a5",
  "lint_results": [
    {
      "name": "go-vet",
      "status": "pass"
    },
    {
      "name": "golangci-lint",
      "status": "pass"
    }
  ],
  "out_of_scope": [],
  "scope_compliance": {
    "ok": true,
    "reason": "no linked workstreams — auto-attested from CI observation"
  },
  "test_results": [
    {
      "name": "go-test",
      "status": "pass (6129 passed, 0 failed)"
    }
  ],
  "type": "ci-auto-attestation"
}

Generated by SDP auto-attestation