docs(jangar): record control plane release gate

[gregkonush]

Summary

• Documents the 2026-05-05 Jangar control-plane release verification gate.
• Records merged PRs fix(torghut): restore live jangar dependency quorum #5376, ci: stabilize agents and jangar checks #5364, and fix(torghut): restore rollout readiness #5387, plus the no-go decision for large open PRs feat(jangar): surface failure-domain lease holdbacks #5454 and feat(torghut): add renewal bond profit escrow #5412.
• Captures GitOps/workload rollout evidence, residual risks, rollback paths, and next action.

Related Issues

None

Testing

• PASS: bun install --frozen-lockfile --ignore-scripts
• PASS: bunx oxfmt --check docs/agents/release-handoffs/jangar-control-plane-verify-2026-05-05.md
• PASS: git diff --check
• PASS: bun run build:docs

Screenshots (if applicable)

N/A. Documentation-only release handoff.

Breaking Changes

None.

Checklist

• Testing section documents the exact validation performed (or N/A with justification).
• Screenshots and Breaking Changes sections are handled appropriately (removed or filled in).
• Documentation, release notes, and follow-ups are updated or tracked.

[gregkonush]

Current status: release verification handoff PR merged.

• PR: docs(jangar): record control plane release gate #5486
• Merge: squash-merged at 2026-05-05T15:02:48Z as 1f52e43e30eeac9ae82b32bb333b42a00a6f385d.
• Change: docs-only audit handoff at docs/agents/release-handoffs/jangar-control-plane-verify-2026-05-05.md.
• Checks: Semantic Pull Request and Semantic Commits passed; deploy-enable jobs were policy-skipped.
• Release gate: fix(torghut): restore live jangar dependency quorum #5376, ci: stabilize agents and jangar checks #5364, and fix(torghut): restore rollout readiness #5387 are already merged; feat(jangar): surface failure-domain lease holdbacks #5454 and feat(torghut): add renewal bond profit escrow #5412 remain no-go because each exceeds 1,000 changed lines and Codex review usage limits prevented a posted Codex review.
• Rollout evidence: Argo controller logs show jangar Synced and Healthy, torghut Healthy, and current Jangar/Torghut namespace pods Running and ready.

Next: restore Codex review capacity or get an explicit maintainer waiver, then re-check review threads, conflicts, and checks before merging #5454 or #5412.